ESP8266 Biometric (Fingerprint) On/Off
In this project IoT Biometric Project, we will learn how to build IoT based Biometric Fingerprint On/Off ESP8266 device. The ESP8266 Wi-Fi Module will get On/Off instruction depending of fingerprint data from android application. If user scan fingerprint in application and get a pass, esp8266 device will listen commands.

You can find ESP8266 code here:
http://esp8266home.cirasoft.net/code/2018/12/10/wemos-d1-mini-relay-shield/
or here:
http://esp8266home.cirasoft.net/code/2019/01/24/diy-smart-home-socket/