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

RFID-based attendance logging system built using the STM32F407G-DISC1 microcontroller and an RFID-RC522 module. It enables reading, saving, and logging attendance of RFID cards through UART serial ...

In recent years Radio Frequency Identification (RFID) systems have become very popular in a number of applications. RFID is an example of mixed signal integrated circuit. Voltage reference is an ...

Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Bryan Siepert for Adafruit ...