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  • Christmas Polyphonic Music Box
    Interesting Christmas project... Using PICmicro and Proton compiler (BASIC language), Les Johnson build a Christmas polyphonic music box. The project use [...]
    - December 20, 2006
  • Use your old hanphone as GSM modem
    Some old handphone, such as Ericsson and Siemens kindly has internal GSM Modem and let us communicate with the modem [...]
    - August 28, 2006
  • Lightning and LEDs Circuits (04)
    Circuits: LED Counter, PIC16F84 LED chaser, PIC16F84 LED signboard, PIC16F84 LED signboard 2, White LED circuits, Assorted LED circuits, etc... [...]
    - August 8, 2006
  • Lightning and LEDs Circuits (03)
    Circuits: 9 Second LED Relay Timer, 16 Stage Bi-Directional LED Sequencer, 28 LED Clock Timer, Fading Red Eyes, Two Transistor [...]
    - August 8, 2006
  • Lightning and LEDs Circuits (02)
    Circuits: 5W Fluorescent light intensity modulator (PDF), 1W Fluorescent lamp night light (PDF), 6 Channel Auto Reverse Sequential Disco Running [...]
    - August 8, 2006
  • Lightning and LEDs Circuits (01)
    Circuits: Black Light, Colour (Sound) Organ, Strobe Light, TRIAC Light Dimmer, Simple Colour Organ, 12VDC Fluorescent Lamp Driver, Adjustable Strobe [...]
    - August 8, 2006
  • LASER Circuits (02)
    Circuit Collection: LASER Transmitter/Receiver, Power Supply, laser diode, Atom Expander, laser pistols, He-Ne lasers, Laser diode, Harp, Entertainment, Fiber Optic, [...]
    - August 6, 2006
  • LASER Circuits (01)
    Circuit Collection: LASER Transmitter/Receiver, Power Supply, laser diode, Atom Expander, laser pistols, He-Ne lasers, Laser diode, Harp, Entertainment, Fiber Optic, [...]
    - August 6, 2006
  • Automotive: Car and Motorcycle Electronics (02)
    Circuit Collection: Automotive, Car, Motorcycle, Vechicle, Cigarette lighter, Tachometer, Windscreen Wiper Control, Wiperd, Car clock, Car message display, Safety indicator, [...]
    - August 5, 2006
  • Automotive: Car and Motorcycle Electronics (01)
    Circuit Collection: Automotive, Car, Motorcycle, Vechicle, Cigarette lighter, Tachometer, Windscreen Wiper Control, Wiperd, Car clock, Car message display, Safety indicator, [...]
    - August 5, 2006
  • Security and Alarm Circuits (02)
    Circuit Collection: Alarm, Sensors, Detector, Proximity, Door, Lock, Codelock, Moisture, Fridge Ultrasonic system, Toxic Gas, Water, Temperature, Silent Alarm, PIR, Motion [...]
    - August 3, 2006
  • Security and Alarm Circuits (01)
    Circuit Collection: Alarm, Sensors, Detector, Proximity, Door, Lock, Codelock, Moisture, Fridge Ultrasonic system, Toxic Gas, Water, Temperature, Silent Alarm, PIR, Motion [...]
    - August 3, 2006
  • Games and Fun Circuits (02)
    Circuit Collection: Games, Visor cradle, coin tosser, ping pong, GameBoy, Camera, Emulator, Programmer, MIDI converter, Atari, Sony, Consoles, Pinball, Joystick, [...]
    - August 2, 2006
  • Games and Fun Circuits (01)
    Circuit Collection: Games, Visor cradle, coin tosser, ping pong, GameBoy, Camera, Emulator, Programmer, MIDI converter, Atari, Sony, Consoles, Pinball, Joystick, [...]
    - August 2, 2006
  • Infrared and IrDA Circuits (02)
    Circuit Collection: Infrared, IR, IrDA, Sensor, Emitter, Transmiter, Oscillator, Receiver, Modulator, Repeater, Decoder, Detector, Wireless, Body heat detector, Headphone, Shutter [...]
    - August 1, 2006
  • Infrared and IrDA Circuits (01)
    Circuit Collection: Infrared, IR, IrDA, Sensor, Emitter, Transmiter, Oscillator, Receiver, Modulator, Repeater, Decoder, Detector, Wireless, Body heat detector, Headphone, Shutter [...]
    - August 1, 2006
  • Health and Medical Electronic Circuits (02)
    Circuit Collection: Health, Medical, Snore alarm, Heartbeat transducer, ECG, EKG/EEG circuit, Heartbeat monitor, Jogging timer, Muscular, Bio-stimulator, Pedometer, Lie detector, [...]
    - July 30, 2006
  • Health and Medical Electronic Circuits (01)
    Circuit Collection: Health, Medical, Snore alarm, Heartbeat transducer, ECG, EKG/EEG circuit, Heartbeat monitor, Jogging timer, Muscular, Bio-stimulator, Pedometer, Lie detector, [...]
    - July 30, 2006
  • Motor Control Circuits (02)
    Circuit Collection: Motor, Controller, Stepper, Servo, DC Motors, Pulse Width Modulation, PWM motor controller, Drivers, Interface, H-Bridge, MOSFET, Speed controller, [...]
    - July 29, 2006
  • Motor Control Circuits (01)
    Circuit Collection: Motor, Controller, Stepper, Servo, DC Motors, Pulse Width Modulation, PWM motor controller, Drivers, Interface, H-Bridge, MOSFET, Speed controller, [...]
    - July 29, 2006
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