Thursday, May 12, 2022

Simple Capacitive Touch Sensor Controller

Looking for a reliable capacitive touch sensor for your project? Look no further than Microchip's CAP1203. This calibrated multi-channel capacitive touch sensor controller is designed to compensate for system parasitic capacitance and automatically recalibrate to adapt to gradual environmental changes. Notably, it consumes very little power in deep sleep mode and can be used as a touch slider, working with materials up to 6mm thick including plastic, wood, and almost any other material.


PCB pad Design as below.


Check out the remade module by Sparkfun and give it a try!


Hot-Swap Circuits with Inrush Current Limiter

  To provide continuous current sensing and limiting, this hot-swap circuit uses a PNP transistor and a current sense resistor of 0.333R. Wh...