https://preview.redd.it/0wyjvjiftixg1.png?width=1185&format=png&auto=webp&s=07c45d954887a983b83b8d8e7f2b3e431e296718

https://preview.redd.it/aukx0sietixg1.png?width=662&format=png&auto=webp&s=53d17f06b0bac3e8e9637addb30645ded167a6d1

I have designed a custom PCB for this chess board

Hall Effect Sensor - US5781 - Temperature Code L - Package Code SE, these are surface mounts. Data Sheet Below. https://www.melexis.com/en/documents/documentation/datasheets/datasheet-us5781

The board controlling this is the Arduino Giga R1 - works on 3v3 logic

Wiring

The power is supplied through 3v3 directly from the arduino (no resistors) and links to all the Hall Effect Sensors.

GND is supplied through the arduino aswell and links to all the Hall Effect Sensors.

Output is directly taken from the header pins to a digital GPIO pin on the Arduino

The Hall Effect Sensor is NO (normally open) meaning output is HIGH when no magnet.…