A Raspberry Pi Pico combined with a BME280 sensor can create a small Pico Altimeter that measures data like elevation and air pressure.

A Raspberry Pi Pico runs the show, using TMC2209 drivers to command a pair of NEMA17 stepper motors to drag a magnet around beneath the sand.

This project demonstrates wireless data transmission using a Raspberry Pi Pico (transmitter) and Arduino Uno (receiver) over low-cost 433 MHz RF modules. Messages are encoded bit-by-bit on the Pico in ...