Ideas: - [ ] Piezo (ESP32) - [ ] Ultrasonic - [ ] OLED with temperature - [ ] Color sensor TCS3200/TCS34725/APDS-9960 - [ ] Bluetooth HC-06 - [ ] Gyroscope MPU6050 + MPU9250 - [ ] GSM module - [ ] GPS - [ ] RF modules - [ ] RFID (No library with official support for ESP32) - [ ] NRF24L01 [Possible source](https://github.com/RoboticsBrno/RoboticsBeginners2017-2018)