The multipurpose dual role BLE to serial bridge based on ESP32 for Arduino plus RFID reader with BLE interface. arduino esp32 ble rfid-reader mfrc522 esp32-arduino ble-serial. Updated May 30, ... mqtt ...

Water level monitor using open-source microcontrollers (Arduino, ESP8266, ESP32) and ultrasonic sensors HC-SR04 / JSN-SR04T and similar with Trigger and Echo signals. Arduino Core & ESP-IDF ...

A novel infrared camouflage capability could help valuable satellites evade detection in the increasingly crowded orbital space around Earth, offering a new stealth defense against satellite detection ...