Archives: Projects

The MAX6953 from Dallas Maxim is a compact cathode-row display driver that interfaces a microprocessor (like PIC or AVR) to four 5x7 dot matrix LED display trough an I2C compatible serial interface. The chip includes some features that can help us to handle easier the displaced data....

Description 4 Channel Infrared (IR) Remote controller is  using  HT12A and HT12D encoder / decoder chips from Holtek. Features Supply - Transmitter : 3 to 5 VDC, 5 V @ 20 mA & Receiver : 5 VDC @ 200 mA Output : 4 channel Latch or Momentary on board Jumper for...

Description Dual Channel Relay Board is a simple and convenient way to interface 2 relays for switching application in your project. Input - 12 VDC @ 84 mA Output - two SPDT relay Relay specification - 5 A @ 230 VAC Trigger level - 2 ~ 5 VDC Berg pins for...

Description Solid State Relay Switch is a simple kit which will help you control (ON / OFF) a single high power circuit from a low power drive. Load - 24 to 240 VAC @ 500 W Trigger voltage - 2 to 5 VDC (TTL) @ 10 mA Input isolated with use of Optocoupler Power Battery...

Schematic Parts...

Description 5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses SUPPLY 12V DC @ 50mA PR1 REF SET PR2 AUDIO LEVEL...

General Description and circuit operation This is an efficient flyback driver for modern cylindrical rectified television flybacks. Many sites doesn't provide circuits driving these transformers, they simply say that they are bad. I don't agree. In fact I built this circuit. I...

This project is an open source (hardware & software) DDS generator, based on: smart TFT module, AD9834, LM7171 fast amplifier. Description The homemade function generator is a quite common project on the internet. We can find different ways to do it: The quick &...