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!


General PCB Routing Techniques

For traces that don't need specific impedance or high current, a 10 mil trace width is fine for the vast majority of low-current analog ...