The Lego Mindstorms EV3 is the programmable ‘brick’ at the heart of the Lego Mindstorms system. However one thing lacking in Mindstorms is remote control options. There is an infrared controller, but this has a
While buying something else, I spotted a small wireless relay module for £5 that looked useful, so I thought I’d buy one to investigate. It consists of a ESP-01s wireless microcontroller and a 5v relay.
When making a pan/tilt mount *link & article pending* for my PiRover robot, I ran into some issues with badly jittering servos. Following some suggestions on the excellent YouTube video from Gary Explains, did not
See details about the PCF8574 board in the Micro:bit notes. Write example, sets all inputs high then low: