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sendo alarmes e circuitos relacionados com segurança, amplificadores de potência de áudio, circuitos relacionados com vídeo, tranmissores de fm tv e circuitos de rf em geral, grande coleção de circuitos transmissores de rf seja em am fm radioamador ou tv, circuitos usando microcontroladores intel 8051, microchip pic, avr, motorola e outros circuitos de programadores de diversos microcontroladores e memórias eprom, o esquema que você procura pode estar aqui.

Alarmes e circuitos relacionados com segurança
Amplificadores de potência de áudio e RF
Aquisição de dados e circuitos lógicos
Automotivo e circuitos relacionados com carros
Energia solar
circuitos de Filtro de áudio e rf
Fontes de alimentação fixas e ajustáveis
Games e diversão (circuitos)
Iluminação circuitos de controle
Instrumentos de bancada teste e medição
Infravermelho circuitos relacionados
Laser transmissão e fontes de alimentação
LED circuitos relacionados
Médico e saúde instrumentos
Microcontroladores circuitos, gravadores e placas de desenvolvimento
Miscelânea de circuitos
Miscelânea de circuitos de áudio
Modelismo e controle remoto
Motor e controles em geral
Música circuitos relacionados
PC e periféricos
PDA interfaces
Pré-amplificadores de áudio
Radiofreqüência (veja também transmissores)
Telefonia e intercomunicação
Temporizadores, osciladores etc.
Transmissores FM, AM, radioamadores, etc.
Vídeo circuitos relacionados
Links direto aos circuitos, problemas com links quebrado nos avise! Boa sorte.
Alarmes e circuitos relacionados com segurança

  1. A Combination Lock
  2.  Residential Alarm
  3. Proximity alarm
  4. Enhanced 4 Digit Alarm Keypad
  5. Modular Burglar Alarm
  6. Electronic lock
  7. Electronic door codelock (PIC16F84)
  8. Moisture alarm
  9. Fridge door alarm
  10. Ultrasonic remote control & alarm system
  11. Sun - Up Alarm
  12. Wire loop alarm
  13. Digital entry lock
  14. Proximity switch
  15. Toxic Gas Detector
  16. LEVEL CROSSING
  17. Door knob alarm (PDF)
  18. Water seepage alarm (PDF)
  19. Micro-power over temperature alarm (PDF)
  20. Personal silent alarm system
  21. Active IR motion detector
  22. A Basic RF Transmitter for PIR Sensors
  23. PIR motion detector
  24. Simple alarm system
  25. Automatic door opener using PIC12C508
  26. Home security project
  27. 5 Zone alarm circuit
  28. Miniature loop alarm
  29. Novel Buzzer
  30. Gate alarm circuit
  31. Modular Burglar Alarm
  32. Motorcycle alarm
  33. Enhanced 5 Digit Alarm Keypad
  34. Enhanced 4 Digit Alarm Keypad
  35. RF Alarm
  36. Single Zone Alarm
  37. Water Activated Alarm
  38. Water level alarm
  39. Perimeter monitor
  40. Digital combination lock
  41. Alarm control keypad
  42. Almost Ultrasonic Motion Sensor
  43. Touch activated alarm system
  44. Combination Lock (PIC16F84)
  45. Low power RFID transponder


  46. Voltar para o Topo
    Amplificadores de potência de áudio e RF
  47. amplificador de 100w rms com o tda7294
  48. 70...100w_dmos_audio_amplifier_with_mute&st-by
  49. 70w-pwr-amp
  50. ampli-lm1875-18w
  51. TDA7294
  52. Amplificador de 60 Watts com tip3055 e 2955 
  53. Two transistor audio amplifier
  54. amplificador de 22000 w rms
  55. amplificador stereo de 100w com stk4231
  56. amplificador a mosfet de 100w
  57. Personal stereo audio amp
  58. Headphone amplifier
  59. Amplificador com o tda8571
  60. 1.5W Audio amplifier
  61. Low-level audio amp
  62. 10W amplifier
  63. 80W amplifier
  64. amplificador de Audio com o tda2030
  65. LM383 12V Amplifier
  66. Amplificador de 100w rms com  tip 142 e 147
  67. 100W Amplifier
  68. 18W Audio amplifier
  69. 25W MOSFET amplifier
  70. Headphone amplifier
  71. Portable headphone amplifier
  72. amplificador de three way de 300w
  73. amplificador de 70w rms
  74. amplificador de 310w rms
  75. 2W amplifier
  76. 4W amplifier
  77. 8 watt audio amp
  78. amplificador de 100 e 200w em brigid
  79. 20W Amplifier
  80. 50W Amplifier
  81. amplificador de 120W mosfet irf9540 540
  82. 100W Audio amplifier
  83. 100W RMS Amplifier
  84. 2-Channel Power Amplifier
  85. Push-Pull Class A Amp using type 5687 dual triodes
  86. amplificador com o tda7386
  87. Push-Pull Class A 2A3 Stereo Amp
  88. Single Ended Class A2 SV811-10 Stereo Amp
  89. Audio amplifier output relay delay
  90. Spatial Distortion Reduction Headphone Amp
  91. amplificador de 380w rms
  92. HeadBanger Headphone Amp
  93. 2W Amplifier
  94. TDA2030 8 Watt amplifier
  95. Amplificador Linear de RF
  96. Headphone distribution amp
  97. Headphone monitor amp
  98. 50W audio power amplifier
  99. amplificador de 10w com o tda2003
  100. Bi-Directional 2.4 GHz One Watt Amplifier
  101. Bi-Directional 900Mhz One Watt Amplifier
  102. 20 Watt GaAaFET Power on 2.3 GHz
  103. 1 Watt 2.3 GHz RF Amplifier Using a MRF2001
  104. Subwoofer ativo
  105. 2.3 GHz Power Amplifiers
  106. 2304 and 3456 MHz Power Amplifiers
  107. High quality exponential VCA
  108. 16 Watt amplifier
  109. 8 Watt amplifier
  110. Power amp schematic (PDF)
  111. amplificador de 100w rms
  112. 20 Watt Class-A Power Amplifier
  113. El-Cheapo - A Really Simple Power Amplifier
  114. Single Chip 50 Watt / 8 Ohm Power Amplifier
  115. Hi-Fi Headphone Amplifier
  116. amplificador stereo de 25w com stk4141
  117. 100W Guitar Amplifier
  118. Death of Zen (DoZ) - A New Class-A Power Amp
  119. Soft-Start Circuit For Power Amps
  120. Thermo-Fan To Keep Your Amp Cool
  121. amplificador de áudio stéreo de 600w rms
  122. Audio Amp Output Power Limiter
  123. 55W (Originally 75W) Power Amplifier
  124. 300W Subwoofer Power Amplifier
  125. 20 Watt / Channel Stereo Power Amplifier
  126. Mini bench amplifier (LM386)
  127. 12 Watt Valve Guitar Amp
  128. amplificador de 300w
  129. amplificador de 400w
  130. amplificador de 110w rms com o 2n3055

  131. Voltar para o Topo
    Pré amplificadores de áudio
  132. pré-amplificador com lm741 ou ca3140
  133. sistema de loudnes com pré-amplificador
  134. Microphone amplifier
  135. mesa de som stereo de 3 canais
  136. RIAA phono amplifier
  137. pré-amplificador de microfone
  138. Low impedance microphone amplifier
  139. Dynamic microphone preamplifier
  140. buffer para cd player
  141. Phono preamp
  142. Masthead preamp
  143. tonal ativos com controles dos graves
  144. Preamplifier for microphone or guitar use
  145. Simple microphone preamplifier
  146. crossover ativo
  147. Tube microphone preamp
  148. Simple Stereo Electret Microphone Preamplifier
  149. Simple Stereo Electret Microphone Preamplifier
  150. chave digital de áudio
  151. Phono Preamp
  152. Simple microphone preamplifier
  153. ECM Mic preamp
  154. pré-amplificador com agudos
  155. Hi Fi preamp
  156. Balanced microphone preamp
  157. Audio preamp
  158. pré-amplificador para microfone de eletreto
  159. Electret mic amplifier
  160. Audio preamplifier
  161. pré-amplificador de alta qualidade
  162. Vacuum Tube Microphone Preamp
  163. FET Preamp Cable
  164. Audio preamp
  165. pré-amplificador para mic de eletreto
  166. pré-amplificador de audio
  167. pré-amplificador para captador
  168. pré-amplificador com realimentação híbrida
  169. sistema de loudnes com pré-amplificador
    Voltar para o Topo
    Automotivo, circuitos para carros e motos
  170. Electronic auto stethoscope
  171. Turn signal alarm
  172. Motorcycle turn-signal system
  173. Cigarette lighter 9V adaptor
  174. Analog Tachometer for Gasoline Engines
  175. Headlight On reminder with Light
  176. Adaptive Windscreen Wiper Control
  177. Car clock
  178. Car message display
  179. Car interval wiper
  180. Safety indicator light
  181. Speed limit alert
  182. Grand Cherokee Off-Highway Lights
  183. Engine control unit schematics
  184. Portable CD Player Adapter For Car
  185. Car battery charger
  186. Wireless Auto Tachometer
  187. Alternator Signal Detector
  188. Automotive alarm system
  189. Road ice alarm
  190. Automotive Anti-Lock Brake Control Driver
  191. Headlight reminder
  192. Breath Alcohol Tester controlling a car ignition system
  193. Simple car battery charger
  194. Parking sonar
  195. Fuel injector pulse width monitor
  196. BMW R Series Motorcycle Regulator Schematic
  197. 80188XL Engine Tachometer
  198. Integrate Fuel Pump Wire Security Cut Off with a Turbo Timer
  199. Simple Car Preamplifier and Artificial Earth
  200. FCD (Fuel Cut Defencer)
  201. Interface between GM's 5 Volt 8192 baud ALDL data stream and a PC serial port
  202. 5301 wideband fuel mixture display
  203. Wide Band Fuel Mixture Display
  204. 3rd brake light
  205. 12V to 9V car coverter
  206. Car Nicad charger
  207. Combination lock for car liftgate
  208. BMW motorcycle side stand protection mod

    Voltar para o Topo
    circuitos de aquisição de dados e lógica
  209. Air flow detector
  210. Air flow detector
  211. Strain gauge sensor
  212. Digital Water Wave/Tide/Level Meter (PIC16F876)
  213. Self made data-logger V2.5 (second edition)
  214. Magnetometer
  215. Analog input section based on AD9220
  216. uModem 4+4/8 channel A/D board
  217. ADXL202 accelerometer to CV output
  218. Light direction sensor
  219. 12-Bit ADC interface
  220. Digital thermometer
  221. Universal flight controllers / datalogger
  222. Rain detector
  223. Home Brew Compass Sensor
  224. Using 555 Timer as an A/D converter
  225. ADC0804LCN 8-bit A/D converter
  226. Web-based thermometer project
  227. Low Flow-Rate Thermal Flowmeter
  228. Geiger counter
  229. Differential Capacitance Measurement for Tilt Meter
  230. Honey Bee counter (PDF)
  231. Capacitance type liquid level measurement (PDF)
  232. Thermostat node schematic
  233. Digital PC Oscilloscope
  234. Ultrasonic Range & Imager
  235. Precision Digital Altimeter
  236. Digital compass schematic
  237. Temperature datalogger
  238. Serial Port A/D-converter
  239. Centronics port D/A converters and low-pass filter
  240. LCD Thermometer
  241. Acceleration monitor using Analog Devices ADXL202
  242. Optical sensor using PIC12C508
  243. Wireless Liquid Level Sensing for Restaurant Applications
  244. Accelerometer Schematic
  245. Pressure Sensor-Based Altimeter Circuit
  246. Ultrasonic range finder circuit
  247. 1-wire barometer
  248. Water-level sensor
  249. Addressable ADC
  250. Electronic altimeter using PIC16F877
  251. Wireless weater station

    Voltar para o Topo
    Filtros de rf e para circuitos audio
  252. Galaxy Noise Filter
  253. Low-pass active filter
  254. Filter Circuit for the Earthworm Seismic Data Acquisition System
  255. Active 2nd Order Filters
  256. RC Notch Filter (Twin T)
  257. Multiple Feedback Bandpass Filter
  258. CW filters
  259. Self-tune filter
  260. SSB AF filter
  261. Helical Resonator Notch Filter
  262. 3KHz low-pass filter plus audio amp (PDF)
  263. Active bandpass filters
  264. Bandpass filters
  265. Butterworth filters
  266. Narrow band audio bandpass filter
  267. Inversal notch and bandpass filter
  268. DC Accurate, Active RC Lowpass Filter
  269. Chebyshev Bandpass Filter
  270. Bandpass filters
  271. Chebyshev / Butterworth filters
  272. Biquad Active Bandpass Filter Schematic
  273. "A" Weighting Filter For Audio Measurements
  274. Multiple Feedback Bandpass Filter
  275. Digital signal processor (DSP) for radio communications
  276. 29.85 MHZ bandpass filter schematic
  277. 29.85 MHZ notch filter schematic
  278. LC filter design

  279. Voltar para o Topo
    Jogos e diversão (circuitos)
  280. Visor cradle serial interface
  281. Electronic coin tosser
  282. Electronic craps game
  283. First response monitor
  284. VCR ping pong game
  285. Video ping pong game
  286. MBC5/CPLD for the GameBoy
  287. GameBoy Camera Parallel Port Interface
  288. Mobile robot (PDF)
  289. PSX controler to PC MIDI converter
  290. Dreamcast PC serial adapter
  291. GameBoy Cart Programmer
  292. Memory game
  293. 32 Kb x 8 emulator for the GameBoy
  294. Project: NES to Atari 2600 controller interface
  295. Battery Meter for Pinball Machines
  296. SRX1 (Stephane's Robotic eXperiment 1)
  297. Pine Racecar Victory Judge
  298. Interfacing Sony control stick to Empeg
  299. Electronic Nicad glow plug driver
  300. April Fools LEDs
  301. Pinewood Derby logic
  302. Quiz Master
  303. GameBoy Schematic
  304. GameBoy LCD schematic
  305. GameBoy Power & Cartridge schematic
  306. GameBoy ROM+RAM+MBC1 Cart Schematic
  307. GameBoy MBC1 circuit equivalent
  308. Super GameBoy schematic
  309. Quiz show indicator
  310. Dreamcast interface
  311. Bingo!!! (on your tv)
  312. Slot car TV cronograph
  313. Furby reverse-engineered circuit
  314. Sanyo 20EZ monitor Arcade Game (300k ZIP)
  315. Burger Time Arcade Game (500k ZIP)
  316. Dig Dug Arcade Game (800k ZIP)
  317. Frogger Arcade Game (500k ZIP)
  318. Galaga Arcade Game (542k ZIP)
  319. Gyrus Arcade Game (800k ZIP)
  320. Junior Pacman Arcade Game (400k)
  321. Ladybug Arcade Game (335k ZIP)
  322. Mappy Arcade Game (470k ZIP)
  323. Moon Cresta Arcade Game (300k ZIP)
  324. Mr.Do Arcade Game (554k ZIP)
  325. PacLand Arcade Game (316k ZIP)
  326. Pengo Arcade Game (313k ZIP)
  327. Q*Bert Arcade Game (600k ZIP)
  328. Qix Arcade Game (476k ZIP)
  329. Scramble Arcade Game (600k ZIP)
  330. Time Pilot'84 Arcade Game (870k ZIP)
  331. Xevious Arcade Game (450k ZIP)
  332. Magic Wand Conjuring Trick
  333. Quiz game circuit
  334. E.S.P. Conjuring Trick
  335. Video game system using PIC18F252 (direct video generation)
  336. Video game system using SX28 (direct video generation)
  337. DIT shutterglasses controller
  338. Tic-tac-toe game using PIC16F628
  339. Archery timer
  340. PIC micro Tetris game
  341. Magic lamp, IR remote control jammer and other fun circuits (PDF)
  342. Lego Mindstorms Double Rotation Sensor


  343. Voltar para o Topo
    circuitos usando infra vermelho em controles remotos e outras aplicações
  344. IR detector
  345. Infrared body heat detector
  346. Stereo IR audio receiver
  347. General purpose IR receiver
  348. Wireless IR headphone transmitter
  349. Wireless IR headphone receiver
  350. Infrared remote control shutter release system
  351. Infrared transmitter for locomotives
  352. Infrared gate for door
  353. Infrared circuits for remote control
  354. Serial port controller infrared transmitter (PIC16F628)
  355. IR Receiver (Amplitude Modulated IR)
  356. IR Transmitter for Audio (Amplitude Modulated IR)
  357. Digibox interface
  358. IR remote control
  359. Long Range Infrared Remote
  360. iRDA to TTL interface
  361. 40KHz light receiver (PDF)
  362. 40KHz TV-VCR repeater (PDF)
  363. Micro based PIR to IR remote converter
  364. IR-related ASCII Schematics V1.00
  365. Infrared remote transponder
  366. Build an Infrared night scope
  367. Decoding IR Remote Controls
  368. IR detector
  369. PC IR Remote Control Hardware
  370. PC IR Remote Control
  371. An Ambient-Light-Ignoring Infrared Active Motion Detector
  372. Infrared Transmitter and Receiver schematic diagrams
  373. Pyroelectric Infrared Sensor
  374. Minimal Infrared transmitter for PC
  375. Simple IR transmitter circuit
  376. Simple infra-red detector
  377. AVR (AT90S2313) serial port infrared receiver
  378. Infra Red Switch
  379. IR remote control extender
  380. IR Remote Control Extender Circuit (Mark 2)
  381. IR Remote Control Extender Circuit (Mark 3)
  382. IR Link
  383. IR remote control tester
  384. 40khz IR Tester
  385. 555 timer 40khz IR Oscillator
  386. IR detector / emitter
  387. Fire-Stick infrared remote control
  388. Simple infrared remote control
  389. Infrared / Ultrasonic beacon
  390. Implementing Infrared Object Detection
  391. IR detector for robotics
  392. Computerized Infrared Remote

  393. Voltar para o Topo
    Laser transmissores e fontes de aliemntaçõ para equipqmentos laser
  394. Light beam receiver for laser pistols
  395. 12V supply for He-Ne laser
  396. Laser diode transmitter
  397. Laser power supply
  398. Laser transmitter/receiver
  399. Laser harp
  400. Laser Telephone Receiver Circuit
  401. Fiber Optic Voice Communications
  402. Efficient Laser Supply
  403. 20MHz VCSEL 3mW laser test circuit (PDF)
  404. 10MHz to 20MHz laser light detector (PDF)
  405. Micro-power 40KHz burst laser diode driver (PDF)
  406. 40KHz laser burst detector (PDF)
  407. Modulated laser diode tester (PDF)
  408. Ar/Kr Ion Laser Power Supply
  409. Laser diode power supply circuits
  410. RS-232 Laser Transceiver
  411. HeNe laser power supply
  412. OPT201 Laser receiver
  413. OPT301 Laser receiver
  414. Laser transmitter schematics
  415. Diode Laser Power Supplies
  416. Laser bug circuit
  417. RS-232 Laser Transceiver
  418. Experimental laser data link
  419. Ar/Kr Ion Laser Power Supply Design
  420. Simple laser communicator

  421. Voltar para o Topo
    Circuitos de iluminação e circuitos usando leds
  422. Big 7-segment LED display board with SPI interface
  423. LED Flasher
  424. LED pulser with audible output
  425. IR Illuminator
  426. Flashing Christmas LED display
  427. ICL7660 LED flasher
  428. LM3909 replacement using discrete components
  429. Color fade
  430. LEDs shimmer randomly as though on fire
  431. LED power supplies for AA cells
  432. 1.5 Volt LED Flashers
  433. AC Line Powered LEDs
  434. Astable Multivibrator
  435. 9 Second Digital Readout Timer
  436. 9 Second LED Relay Timer
  437. 16 Stage Bi-Directional LED Sequencer, other sequencer and flaser circuits
  438. 10 Stage LED Sequencer
  439. 28 LED Clock Timer
  440. Fading Red Eyes
  441. Two Transistor LED Flasher
  442. 16 Stage Bi-Directional LED Sequencer
  443. Expandable 16 Stage LED Sequencer
  444. LED Photo Sensor Circuit
  445. LED chaser
  446. 7 Segment LED Counter
  447. 7 by 10 LED Moving Sign ( 27C512 EPROM)
  448. Sequencial LED Flasher with Reversable Direction
  449. Tri Color LED Controller with Serial Interface
  450. 1.5V LED flasher B (PDF)
  451. Low current LED flasher (PDF)
  452. 1.5V LED flasher A (PDF)
  453. Flashing LED advertising badge (PDF)
  454. Flashing LED advertising badge (PDF)
  455. Pulsed LED test circuit (PDF)
  456. Low battery voltage flasher (PDF)
  457. Adjustable flashing LED
  458. PWM white LED drivers
  459. Heart of LEDs
  460. Christmas Star
  461. Christmas tree
  462. LED Counter
  463. PIC16F84 LED chaser
  464. PIC16F84 LED signboard
  465. PIC16F84 LED signboard 2
  466. White LED circuits
  467. Assorted LED circuits
  468. LED Mood Light
  469. LED Audio VU Meter
  470. Robot Beacon rotating light using PIC12C508
  471. LM3909 LED flasher
  472. Animated LED signboard (PIC16C84)
  473. Picxie 2 - 8x8 Animated LED Signboard

    Voltar para o Topo
    Circuitos relacionados com iluminação e controle
  474. Dimmer AC
  475. Garden light switch
  476. DMX lighting and special effects
  477. Microcontroller Multichannel Light Dimmer
  478. Digital timer light switch
  479. Hand clap lamp control
  480. Radio controlled light switch
  481. Disco style Strobe Light
  482. Varying Brightness AC Lamp
  483. 12 Volt Lamp Dimmer
  484. 120VAC Lamp Chaser Using Solid State Relays
  485. Flashing Neons (NE-51 / NE-2)
  486. Sequencing Neons (NE-51 / NE-2)
  487. Touch Activated Lamp
  488. 220V Flashing lights
  489. Coutesy lamp
  490. Bedside lamp timer
  491. TRIAC light dimmer
  492. 12VDC Fluorescent Lamp Driver
  493. Strobe light
  494. Adjustable Strobe Light
  495. RHINO8 EL Sequencer
  496. Light Sequenced Candelabra
  497. Light timer
  498. 5W Fluorescent light intensity modulator (PDF)
  499. 1W Fluorescent lamp night light (PDF)
  500. Low-voltage light dimmer
  501. Light chaser
  502. 4-channel dimmer rack
  503. PIC16F873 light controller
  504. Disco light controller
  505. Neon desklamp
  506. Electronic night light
  507. Neon lamp dimmer
  508. LED Mood Light
  509. LX-800 Lighting system
  510. Xenon Strobe Light
  511. Lamp flasher/dimmer

  512. Voltar para o Topo
    Saúde e circuitos relacionados com hospital
  513. Snore alarm electronic device
  514. Heartbeat transducer
  515. ECG Amplifier
  516. EKG/EEG circuit
  517. Radiation Dosage-Rate Meter
  518. Heartbeat monitor
  519. Cranial Electrotherapy Stimulator
  520. Automated crib lights
  521. Jogging timer
  522. Tan timer
  523. Muscular Bio-stimulator
  524. Pedometer
  525. Simple lie detector
  526. EEG preamp, anti alias filter and isolation circuit
  527. Self Contained Electromyograph (EMG)
  528. Cardiac monitor
  529. Galvanic Skin Response (GSR) Schematic
  530. Brain-Wave Machine
  531. Lie detector
  532. Simple lie detector
  533. ECG project page
  534. The ESP SIM (Sound Impairment Monitor)
  535. Respiration system

    Voltar para o Topo
    Microcontroladores circuitos, programadores e placa de desenvolvimento para microchip pic, 8051, avr, motorola, basic step e outros
  536. CURSO BÁSICO DE PIC
  537. Microcontroladores PIC E-book gratuito do Pic16f84
  538. 3dip8 programador e Microchip forum
  539. ART2003 Pic programador
  540. Ecopic Programador
  541. GTP-04 e GTP-07  programador
  542. GTP-Lite Programador
  543. GTP-USB-#0 e #1
  544. GTP-USB-#F1
  545. GTP-USB-232
  546. JDM programmer
  547. Pablin
  548. Paraprog
  549. PG3B
  550. Pic800
  551. Picburner
  552. PP2
  553. Propic2
  554. Gravador de PIC PROGPIC II Revista mecatrônica fácil
  555. RCD Programmer
  556. Gravador JDM com fonte externa (recomendável)
  557. PROGRAMADOR DE MICROCONTROLADORES PIC POR PUERTO USB
  558. PIC based packet radio encoder (PDF)
  559. Atmelprog
  560. Avr2313mod1
  561. Avr8515_eval-board_node13_gpl2
  562. Avr_zigbee_802.15.4_reva01
  563. avrmp3
  564. Evaluationboard_at89xx
  565. ICD2-2
  566. ICD2
  567. PIC18f452
  568. Wineprom
  569. RS485-Version of the SAB80C535-Microcontrollerboard
  570. PC IR receiver based on PIC16F84
  571. Record and play fast 1-bit sound on a PIC micro
  572. AT89C2051/4051scanning 7-segment display and keypad
  573. AT89C2051/4051 Driving dot LED
  574. AT89C2051/4051stepper motor interface
  575. AT89C2051/4051connecting dumb terminal
  576. Motorola 68K SBC (single board computer)
  577. 8051 SBC (single board computer)
  578. Simple RS232C Level Converter using Transistors
  579. Motorola 68HC11 evaluation board
  580. C-52 EVB Robot Controller
  581. Mains clock controller using AT89C2051
  582. AT89C2051/4051 Easy-Downloader
  583. AT89C51/52/55 Easy-Downloader
  584. PIC16F84 programmer
  585. PIC16F84 miniature real-time controller
  586. Isolated RS232 for PIC16F84
  587. PIC16F84 debugging terminal
  588. MiniLOGGER V1.0
  589. Analog datalogger based on T89C51RD2
  590. Atmel 89C Series Flash Microcontroller Programmer
  591. Atmel 89C2051 prototype board
  592. AT89C2051 real-time controller
  593. PIC12C508 Night-light saver
  594. AT89C2051 Night light saver
  595. Atmel 8051 Flash Based-Microcontroller Programmer
  596. AT89C2051 Digital thermometer and clock
  597. 4-Channel Timer using Atmel 89C4051 and MAX7219 display driver
  598. PIC16F84 CW decoder (PDF)
  599. 12C508 Smart Lock
  600. 80C31 stepper motor controller
  601. Build a PIC controlled DDS VFO, 0 to 6 MHz
  602. PIC controlled DDS VFO, 0 to 6 MHz
  603. Basic Stamp Lightning Activity Monitor
  604. Parallel AVR programmer
  605. PIC16F84 line following robot
  606. PIC16C505 IR / wireless remote control
  607. Automatic door opener with PIC12C508
  608. RS485-like multi-drop bus with half duplex serial protocol
  609. WWWpic2 - A web server in a PIC
  610. PIC16F84 web server
  611. 50 MHz frequency counter, voltage meter & SWR/PWR indicator
  612. Microcontroller board using the Atmel AVR AT90S8535
  613. Programmer PIC16F84,12C50x and EEPROM 24Cxx
  614. RDS Encoder - digital part
  615. PIC programmer for serial port
  616. Fully functional PS/2 mouse based on the PIC16F84
  617. PIC 18 programmer (PIC18F458, PIC18F452, PIC18C252, PIC16C745, PIC18F6620, PIC18F6720)
  618. Foreign vocabulary recollector
  619. Illuminate holiday destinations on a world map
  620. Embedded system to send e-mails (small TCP/IP stack)
  621. Speaking clock using PIC & ISD device
  622. Speaking doorbell using PIC & ISD device
  623. Whistle detector using 8-pin PIC
  624. PIXpand
  625. PIC16F877 to IDE interface
  626. 68HC11 stepper motor control
  627. 90S2313 AVR Robot Board
  628. POCSAG encoder/decoder
  629. Network Time Protocol AVR Clock
  630. DS1820 Temperature Sensor Readout Unit
  631. Rotating Sprocket Wheel Generator (PIC16F84)
  632. Talking PIC - based on SP0256
  633. Serial to parallel converter using the AT89C2051
  634. AT89C2051 serial COMs to LED driver
  635. PIC16F877 Programmer And Development System
  636. DS1820 Arbiter V2.00 Schematic
  637. Microchip PIC ICSP implementation
  638. 101 AT Keyboard to ASCII Decoder using 68HC705J1A MCU
  639. LCD Serial Terminal
  640. Propellor clock (PIC16F84)
  641. Optical sensor using PIC12C508
  642. Interfacing S-7800A to PIC16F877
  643. A Scenix (and PIC) Programmer
  644. MMC to PIC16F876 circuit diagram
  645. 8088 maximum mode SBC
  646. EZ80 single board computer schematic (Z80)
  647. 8051 Development System Circuit Board
  648. Voice recording and message retrieval system
  649. Interfacing a GPS to an LCD using a Microcontroller
  650. Long-period watchdog timer
  651. PIC16F84 Range Finder Project
  652. Generate video signals in real-time using a PIC16F84
  653. PIC ICD
  654. PIC Project #1 - RS232 to I2C Interface
  655. Galvanic decoupling of I2C bus
  656. Programmer PIC16F84,12C50x and EEPROM 24Cxx
  657. Dual PIC16C84 prototype board
  658. Graphic LCD interface
  659. FSK modem with PIC16C84
  660. Talking YODA project (PIC16C84)
  661. PIC16F84/PIC16F87x-In-System-Programmer
  662. Microcontroller interface for 5KW microwave oven
  663. Using an I2C Serial EEPROM with a Basic Stamp 2
  664. PIC16F84 Based Morse Code Reader
  665. AVR-Based Serial Port IR Receiver
  666. Interfacing piezo elements to a microcontroller
  667. Victoria TAFE programmer (based on AT89C2051)
  668. JDM programmer
  669. PIC micro programmer
  670. Speech recognition using HM2007
  671. PIC microcontroller servo motor interface
  672. PIC micro multiple servo motor interface
  673. PIC16F84 countdown timer
  674. PIC16F873 ultrasonic range meter
  675. PIC16F873 Digital clock
  676. PIC16F873 remote display
  677. PIC16F84 stepper motor controller
  678. Way small web server
  679. PICADC - a free, PIC based "intelligent" A/D converter
  680. 8051 development system circuit board
  681. 8088 maximum mode single board computer (SBC)
  682. Basic 89C2051 / 89C4051 circuit diagram
  683. Debugging dump terminal for 89C2051 designs
  684. Easy debugging terminal
  685. Galvanic decoupling of I2C bus
  686. Circuits interfacing piezo elements to a microcontroller
  687. Driving a TRIAC using a PIC12C508
  688. Isolated RS232C for PIC16F84
  689. Microchip ICD (in-circuit debugger) circuit diagram
  690. Microchip PIC ICSP implementation circuit diagram
  691. Interfacing NMEA GPS to LCD using PIC16F84
  692. PIC ICD (in-circuit debugger)
  693. PIC16C71 morse code callsign generator
  694. PIC16F84 to LCD interface
  695. PIC16F84 I/O expander with PicBasic
  696. Scanning 7-Segment & Keypad
  697. 10-key serial keypad encoder
  698. Simple RS232C Level Converter using Transistors
  699. Talking PIC microcontroller using SP0256
  700. PIC-Programmer 2
  701. Connecting PIC12C508 8 to 93AA46 serial eprom
  702. KD7LMO Micro Beacon (PIC18F252)
  703. GPS LCD Display Project
  704. PIC16F84 LED chaser
  705. PIC micro LED projects
  706. PS/2 keyboard keystroke logger based on Atmel 89C2051
  707. Electronic distance meter based on Motorola 68HC908QY4
  708. Fan timer based on Motorola 68HC908QT2
  709. Atmel AVR and 8051 series ISP programmer
  710. AT89C2051 line-follower robot
  711. Night light saver (PIC12C508)
  712. USB and GLCD expansion board for 8051 SBC
  713. Basic stamp interface circuits
  714. Microcontroller sensor and actuator interfaces
  715. Giant money counter (PIC16F876)
  716. PIC12C509 logic gate replacement for nitrogen filler
  717. PIC demo board
  718. PIC12C509 Gym Timer
  719. PIC LCD and Keypad driver
  720. PIC12C508 Phase Controller for 2kW heater
  721. PIC16F84 TRIAC / IGBT brightness phase controller
  722. PIC16F84 pulse monitor with date/time output (ZIP)
  723. Programmer for the 68HC705C8 MicroController
  724. 27c801 EPROM Programmer Project
  725. LCD to PIC16C54 schematic
  726. 68HC11 based RDS decoder
  727. Acceleration monitor using ADXL202 and AVR
  728. 40+ MHz 5-digit frequency counter with an AVR 2313
  729. Interfacing DRAM to AT90S8515
  730. Temperature monitor/controller: AVR 2313 / DS1621
  731. PIC micro to ISA bus interface
  732. PIC16C84 VT-52 Emulator for Linux
  733. Microchip PIC ICD (in-circuit debugger)
  734. Tony Nixons Pocket Programmer (PIC)
  735. PicoWeb V5.1 (AT90S8515) tiny web server
  736. Atmel 89C2051 In-Circuit Programmer Schematic
  737. 8051 Development System Circuit Board
  738. 8051 Development System Circuit Board
  739. Microprocessor using Xilinx FPGA
  740. Temperature controlled based on AT89CX051
  741. I2C LCD interface
  742. AFSK 1200 Modem based on PIC16C620
  743. PicCon - Hidden Radio Transmitter Controller
  744. PIC16F84 tone generator with source code
  745. PIC16F84 tone generator
  746. PIC16F84 tone generator (6-Bit)
  747. AVR Beacon Super Keyer
  748. AVR Frequency Counter
  749. AVR Digital Voltmeter
  750. AVR Signal Generator
  751. Ser-Key 10-Key Serial Keypad Encoder
  752. 2-wire LCD interface using PIC16CF84
  753. PIC16F84 Serial I/O-expander with PicBasic
  754. RS 485-RPT Schematic
  755. Camera remote control system using Basic Stamp
  756. Low cost Atmel in-system programmer
  757. Ultra low-cost programmer for AT90S family
  758. AVR to USB interface
  759. Programable LCD counter with memory backup based on Atmel AT90S1200A
  760. Connecting AT90S2313 with LCD display 2x16 char and 4x4 keypad
  761. Atmel AVR RCEN fuse bit programmer
  762. Electronic safety lock based on ATtiny26
  763. GSM SMS remote control using AVR microcontroller
  764. 128x64 LCD Driver for AT90S2313 (ZIP file)
  765. Connecting LED to PIC Micro I/O pins (PDF)
  766. Microprocessor RS-232 Reset
  767. AT90S8515 experimenter board
  768. Multi-chip programmer for PIC microcontrollers
  769. Buffered PIC chip interface
  770. A PIC-Based Keyboard Emulator
  771. PIC-based robot
  772. ScanMate audio activated recorded
  773. PIC vacuum fluorescent display interface
  774. PIC18F252 bootloader schematics
  775. PIC16F876 Datalogger
  776. GPS Repeater
  777. Kodak DC-20 camera interface (PIC12C509)
  778. Kodak DC-20 camera interface (PIC16F84)
  779. PIC ICD in-circuit debugger circuit diagram
  780. PIC programmers for parallel port
  781. Wisp628 ISP Microchip PIC Programmer
  782. WLoader - PIC16F877 application loader / bootloader
  783. Nixie clock (PIC16F876)
  784. Zilog Z80 thermostat embedded web server
  785. Picxie 2 - 8x8 Animated LED Signboard (PIC16F84) Picxie 2 - 8x8 Animated LED Signboard
  786. 10 tricks for interfacing to the PIC16C508
  787. Interfacing the PIC16C508
  788. PIC 5x7 display
  789. Analog to digital conversion notes
  790. Multi-chip programmer

    Voltar para o Topo
    Vários circuitos de áudio
  791. Electronic siren
  792. Two-tone siren
  793. Underwater microphone
  794. Code practice oscillator
  795. Noise generator
  796. Electronic whistle
  797. Twin-T Audio Sine Wave Oscillator
  798. 1.5V Audio Amplifier
  799. Low Power Op-Amp - Audio Amp (Intercom)
  800. 555 Tone Generator (8 Ohm Speaker)
  801. 3 Transistor Audio Amp (50 milliwatt)
  802. Low Frequency Sinewave Generator
  803. Automatic Charger for Battery Operated Hi-Fi Preamps
  804. Audio level indicator
  805. Room noise detector
  806. Amplifier timer
  807. Bell ring generator
  808. Amplified ear
  809. Precision audio millivoltmeter
  810. Six-channel Mixer and Amplifier
  811. Audio Signal Source
  812. Analog VU meter
  813. Voltage controlled amplifier
  814. Audio graphic equaliser
  815. Intercom preamp
  816. FET audio mixer
  817. Microphone mixer
  818. Tone control
  819. Digital volume control
  820. Sound level meter
  821. CMOS IC audio oscillator
  822. Three band Active Tone Control
  823. Automatic gain control (AGC) circuits
  824. Audio frequency meter
  825. Bull Horn
  826. Sound Mixer/Amplifier
  827. Very loud beeper (PDF)
  828. Digital noise generator (PDF)
  829. Tone display system
  830. Tube amplifier
  831. Condenser microphone hookup
  832. Phase shifter
  833. Paradoxical Sound Syntheizer
  834. Various tube crossover circuits
  835. Bias circuits
  836. Audio line isolator
  837. Dynamic microphone to electret microphone input
  838. Line level signal to microphone input adapter
  839. Simple two line output combiner
  840. Electret microphone powering circuits
  841. Use amplifier phono input as line level input
  842. Speaker signals to line level inputs
  843. Spring reverb unit
  844. Sine wave generator
  845. Simple amplifier
  846. 3-Band equalizer
  847. 6-Input mixer
  848. Doorphone intercom
  849. Stereo line driver
  850. Audio notch filer
  851. Peak reading audio level meter
  852. Tone control
  853. Speaker Microphone Circuit
  854. Electronic canary
  855. Electronic siren
  856. Microphone phantom power supply
  857. Voltage Controlled Mixer w/Modulator
  858. Dual Voltage Controlled Oscillator w/Modulator
  859. Dual Voltage Controlled Filter w/Modulator
  860. Stereo Ducker
  861. MS Stereo Decoder
  862. MS Stereo Microphone
  863. RIAA Equalized Stereo Phono Preamp
  864. Tube active crossover
  865. Improved PL tone decoder
  866. Magnetic cartridge amplifier
  867. LM358 preamp
  868. Sound detector
  869. Tone detector
  870. Tone generator
  871. Warbler
  872. Voltage Controlled Panner
  873. Low Noise Microphone Preamplifier
  874. Bridging Adapter For Power Amplifiers
  875. Simple Surround Sound Decoder
  876. Simplest Ever Amplifier Bridging
  877. Stereo Width Controllers
  878. Power Amplifier Clipping Indicator
  879. Phono Preamps For All
  880. Digital Delay Unit For Surround Sound
  881. Parametric And Sub-Woofer Equaliser
  882. High Quality Sound Mixer
  883. Loudspeaker Protection and Muting
  884. Direct Injection Box for Recording & PA Systems
  885. Minimalist Discrete Hi-Fi Preamp
  886. Signal Detecting Auto Power-On Unit
  887. Load Sensing Automatic Switch
  888. Amplifier thermal protection
  889. Active Sub-Woofer and Controller
  890. Balanced Line Driver & Receiver
  891. VU And PPM Audio Metering
  892. Variable Amplifier Impedance
  893. Linkwitz Cosine Burst Generator
  894. Low Noise Balanced Microphone Preamp
  895. Fast Audio Peak Limiter
  896. Subwoofer Equaliser
  897. Surround Sound Decoder Mk2
  898. Audio mixer

  899. Voltar para o Topo
    Miscelânea (vários circuitos)
  900. Ultrasonic radar
  901. Mobile APRS / GPS tracking system
  902. Electronic fish lure
  903. Ultrasonic sound receiver
  904. Experimental data transmitter for fiber optics
  905. Experimental fiber optic receiver
  906. Ion detector
  907. Darkness monitor
  908. Electroscope
  909. Simple event counter
  910. Geiger counter
  911. Light detector
  912. Short-circuit beeper
  913. LM 1800 FM stereo decoder
  914. Glitch detector
  915. MAX924 bar-graph level gauge
  916. Ultrasonic generator
  917. Negative ion generator
  918. ELF Monitor
  919. Chaos generator
  920. Simple BFO metal detector
  921. Voltage Comparator Information And Circuits
  922. Build Your Own Digital Setting Circles For Your Astronomical Telescope
  923. PL tone generator (NE567)
  924. Bat detector
  925. Bat detector microphone pre-amplifiers
  926. Full-duplex doorphone with 3 wires connection
  927. G Strain energy absorber
  928. RDS Encoder
  929. Toggle Switch Debounced Pushbutton
  930. Discrete Set/Reset Flip Flop
  931. Monostable Flip Flops (one shot)
  932. Discrete Bistable Flip Flop
  933. Talking Morse Code Practice Computer
  934. Plant watering watcher
  935. Capacitance sensor
  936. Whistle responder
  937. Nocturnal animals whisker
  938. 12V DC electronic door chime
  939. Biasing Op-Amps into Class A
  940. Parasite zapper
  941. Bleeper box for time reference
  942. Analog computer
  943. BayComm packet modem
  944. Morse monitor
  945. HamComm modem interface
  946. Morse paddle keyer
  947. UV light box
  948. Hardware Random Bit Generator
  949. Random noise generator
  950. Analog pulse counter
  951. Analog opto-isolator
  952. Pulse width modulators (PWM)
  953. Pulse width to voltage converter
  954. Fantastic Atom Expander
  955. Black Light
  956. Computerize Your Room/Home
  957. Flash slave trigger
  958. Suddent ionospheric disturbance (SID) receiver
  959. A Visual CW Zero Beating Aid
  960. A two-way Morse practice set
  961. Magnetic levitation device
  962. Tesla power receiver
  963. Lazer Tag Equipment Modifications
  964. Garmin GPS data interconnect
  965. Inexpensive APRS Weather Station
  966. Walking robot
  967. Basic op-amp circuits
  968. Power line FM intercom
  969. Intercom circuit
  970. Lightning Storm Detector
  971. Large LCD Display Buffering Driver
  972. Text to speech converter
  973. Ion detector
  974. 1uS light pulse descriminator plus F to V converter (PDF)
  975. Broadband 2MHz optical fiber receiver (PDF)
  976. Modulated light received (PDF)
  977. 1uS light pulse receiver plus post amp (MISC)
  978. Broadband 5MHz optical fiber receiver (PDF)
  979. High-speed light receiver (PDF)
  980. Basement doorbell beeper (PDF)
  981. Time to dust indicator (PDF)
  982. Low-power optical interrupter (PDF)
  983. Simple nitrogen spark generator (PDF)
  984. Ultrasonic transducer oscillator circuit
  985. Build logic gates using discrete parts
  986. Jacob's Ladder
  987. Sudden Ionospheric Disturbance (SID) Receiver
  988. A selection of robotics projects
  989. Bat detector (new)
  990. Vat detector (old)
  991. Variety of quick designs
  992. Gold wafer (smartcard) programmer
  993. Making a FRED photopopper
  994. GPS receiver support kit
  995. Griffith Observatory Tesla Coil
  996. Fogger smoke machine
  997. Dinsmore 1490 digital compass
  998. Geiger counter
  999. Electric field disturbance monitor
  1000. Inexpensive seismometer project
  1001. Digital dial
  1002. Speech recognition using HM2007
  1003. GPS receiver interface
  1004. Doorbell for the Deaf
  1005. Electromagnetic field detector
  1006. Insect Repellant
  1007. High Quality Intercom
  1008. Magnetic Gun.
  1009. Metal detector
  1010. Static Electricity / Negative Ion Detector
  1011. Ultrasonic dog whistle
  1012. Popular Electronics Ultrasound Detector
  1013. An Inexpensive X-ray Machine
  1014. Navigator 555A radio direction finder (RDF) circuit diagram
  1015. Magnetic levitation circuit
  1016. PE3342 Programmer Schematic
  1017. u-Blox GPS receiver board
  1018. Assorted digital circuits
  1019. Basic electronic circuits
  1020. Miscellaneous simple circuits
  1021. Digital Call Sign Annunciator
  1022. Monitor output from Motorola Oncore GPS engine in HP Z3801A in GPS Disciplined Oscillator
  1023. Ultrasonic switch
  1024. Sound finding cricket with phase detector
  1025. Sound finding cricket
  1026. APRS GPS tracker schematic (PIC16C73)
  1027. Common Ground for Older VPW Circuit
  1028. Very basic circuits
  1029. Bat detector
  1030. FCTS Project
  1031. Smooth Tone Clickless CW Sidetone Generator
  1032. Morse Code Beacon Keyer
  1033. Lightning Activated Camera Shutter Trigger
  1034. Simple metal detector electronic circuit
  1035. Three Power Supplies for the Garmin GPS-20 Sensor Board
  1036. Driving N-channel FETs from TTL
  1037. Miniature Self-Powered Autonomous Robot
  1038. Morse Code Practice Keyer 1
  1039. Morse Code Practice Keyer 2
  1040. 741 Light Sensor
  1041. Fluid level detector
  1042. The Aisin-Seiki GPS-Receiver (The "US$20 GPS")
  1043. Morse code display
  1044. Intercom schematic
  1045. Scaling ADXL50 accelerometer output

  1046. Voltar para o Topo
    Modelismo e controle remoto
  1047. Snake throat muscle controller
  1048. Handy cricket for robotic applications
  1049. Incline Railway Control Circuit
  1050. A Receive Signal Decoder
  1051. 27Mhz toy car receiver
  1052. 27Mhz toy car transmitter
  1053. One ounce rocket ejection timer
  1054. LED traffic lights
  1055. Two-tone siren
  1056. Proportional radio remote control
  1057. Alf: The Robotic Matchbox car
  1058. Seaplane schematic
  1059. Model Rocket with Video Camera
  1060. Signal breaking module
  1061. RF serial link for robot
  1062. PIC based rocket altimeter
  1063. Robot with PIC16F84 brain & InfraRed eyes
  1064. 0-10V control for RC servos
  1065. Robotic microcontroller board
  1066. Multi Rocket Launcher
  1067. Model rocket launch controller
  1068. Pad launch controller for model rockets
  1069. Simple flashing light circuit
  1070. Simple flashing light circuit
  1071. A dual alterna