4 Channel IR Transmitter and Receiver Module Using ht12A & HT12d

4 Channel Infrared (IR) Remote is a simple project using the popular HT12A and HT12D encoder/decoder chips from Holtek.  The project can be used in latch mode or momentary mode, mode selection possible using J1 Jumper and transmitter end. All output at the receiver end is TTL.   Specifications     Supply – Transmitter: 2.4 ~ 5 VDC, 5 V @

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Balanced Audio head-phone amplifier ( Balanced audio monitor)

Useful audio device for audio professionals, tiny board is a balanced headphone monitor, based on BA4560 op-amp, project works with 12V DC supply, Female XLR connector helps to feed balanced audio input, male XLR connector for parallel balanced signal output, and 3.5MM Stereo EP socket provided to connect headphone, easy supply input using standard DC socket, onboard potentiometer provided to

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High Precision Low Cost Adjustable Constant Current Source Output 0 to 2.5A

Current sources are widely used in industrial, power supply, LED drivers and other equipment. The project has been developed using the AD8276 difference amplifier and the AD8603 op-amp. Current source using the low power AD8276 difference amplifier and the AD8603 op amp are affordable, flexible, and is small in size. Performance characteristics such as initial error, temperature drift, and power

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