In the lower left corner of the protoboard you can see the configurable gate device (74LVC1G58) he added to monitor the hall effect sensor and switch the output and LEDs accordingly.

What’s most impressive about the P1 HE is how close it comes to dethroning one of the most popular Hall-effect keyboards, the ...

The latest digital shunt sensor from Bourns is a precise, compact, cost-effective measurement solution that supports RS-485, ...