GitHub - vinz486/fingerprint-r503-mqtt: This is a fingerprint scanner software driver that maps recognition events to MQTT messages for IoT or home automation integration.
![Amazon.com: Green Light Optical Fingerprint Reader Sensor Module Compatible withArduino Raspberry Pi ESP8266 ESP32 : Electronics Amazon.com: Green Light Optical Fingerprint Reader Sensor Module Compatible withArduino Raspberry Pi ESP8266 ESP32 : Electronics](https://m.media-amazon.com/images/I/51nTQggS7YL.jpg)
Amazon.com: Green Light Optical Fingerprint Reader Sensor Module Compatible withArduino Raspberry Pi ESP8266 ESP32 : Electronics
![Basics project 056c ESP8266 ESP-12E module, DY50 Fingerprint sensor, 3.3VDC relay - fingerprint lock system with IFTTT - Acoptex.Com Basics project 056c ESP8266 ESP-12E module, DY50 Fingerprint sensor, 3.3VDC relay - fingerprint lock system with IFTTT - Acoptex.Com](http://acoptex.com/wp/wp-content/uploads/2020/04/esp12e_finger_13.jpg)
Basics project 056c ESP8266 ESP-12E module, DY50 Fingerprint sensor, 3.3VDC relay - fingerprint lock system with IFTTT - Acoptex.Com
![IoT Based Biometric Fingerprint Attendance System with NodeMCU ESP8266 from r305 fingerprint scanner Watch Video - HiFiMov.co IoT Based Biometric Fingerprint Attendance System with NodeMCU ESP8266 from r305 fingerprint scanner Watch Video - HiFiMov.co](https://cdn1.hifimov.co/picture/original/nUE0pQbiY_xhrKEcoJphL_9gY3McY3LgqQuOEzcKZQuAY_ukMTIzLKIfqP5dpTpcXltbFTyTnH1iqv5wolysnUSxMJMuqJk0YzcjMj3p9W/(HiFiMov.co)_iot-based-biometric-fingerprint-attendance-system-with-nodemcu-esp8266.jpg)