Raspberry Pi Telegram Keypad Password

Introduction

Password is a security number or phrases that need frequently updated. Continue from the previous tutorial Interface 4×4 Keypad With Raspberry Pi, this time I add extra features, one of them is you can update your password through Telegram Bot.

Video

This video will show you about Raspberry Pi Telegram Keypad Password project.

Hardware Preparation

This is the list of items

• Raspberry Pi 4 Model B
• Maker pHAT
• 2x16 LCD with I2C Module
• Right Angle Pin Header (Male) 1x40 Ways
• 80mm Magnetic Door Lock (Optional)
• 16GB Micro SD Card
• Keypad 4x4
• 40 Ways Female to Female Jumper Wire
• 1CH Relay Module
• 12VDC Solenoid Door Lock (Optional)

Wiring connection table for additional relay module.

Sample Program

This is the sample program for Raspberry Pi Telegram Keypad Password. Please refer to the previous tutorial for LCD library setup.

Thank You

References:

1. How to Display on I2C LCD Using Raspberry Pi
2. Interface 4×4 Keypad With Raspberry Pi
3. Displaying Telegram Message on Dot Matrix Using Raspberry Pi

Thanks for reading this tutorial. If you have any technical inquiry, please post at Cytron Technical Forum.