ESP32 Keypad Database Security System

In this article, I am going to show you how I created my ESP32 based doorlock mechanism using a keypad and a database to store my valid list of keycodes. The ESP32 board interfaces with a keypad, an I2C LCD display and my manual doorlock that is being controlled by my servo motor. It then connects to my Representation State Transfer API (REST) web service built using Node.js. The keycodes entered by the user thru my keypad is then validated to the list of my valid keypads stored in my MongoDB database. WriteUp: https://www.donskytech.com/esp32-keypad-database-security-system-design/ Links in this video: ESP32 Code https://github.com/donskytech/platformio-projects/tree/main/esp32-projects/esp32-keypad-db-iot REST API Server Using Node.js and MongoDB https://github.com/donskytech/nodejs-projects/tree/main/keypads-iot-rest-applications If you like my post or videos then please consider subscribing to my channels and share it to your friends: Website: https://www.donskytech.com Facebook: https://www.facebook.com/DonskyTech Youtube: https://www.youtube.com/c/DonskyTech