EDN

IR Decoder & Encoder — Part 1

Here’s the front-end circuit of the IR sniffer. The hardware will capture an IR code and retransmit it on demand. The schematic isn’t particularly complex. The IR receiver module is represented here ...
EDN

IR Decoder & Encoder — Part 2 (DIY 38-kHz IRTR Module)

As you might have noticed, the 38-KHz pulse generator is built around the evergreen timer chip NE555P (IC1). Here, the RC components (R5-C3-P1) set the astable frequency to drive the infrared light ...
Electronic Design

An Alogue-Conditioning Circuit Targets Sinusoidal Encoder Apps

1. This optimised analogue-conditioning circuit can avoid signal distortion caused by nonlinearities, and guarantee an optimum interface between the encoder and ADC. 2. shown is a normalised RC filter ...