When you are sitting in the room to concentrate on the work, you suddenly have received a friend's massage,” he had pressed the doorbell many times, but no one to open the door”. Have you ever met such a thing?

Today we can use Micro:bit and BOSON to make a mobile doorbell, you can carry it in the house or put it in the area you often stay.

Functions of the mobile doorbell:

1. Remote information transfer, to achieve the mobile doorbell 

2. Sense the body, to achieve lighting in the dark

3. On the part of the outside, through the arrow, prompt to position of touching the doorbell. If touch, it will show "welcome".

4. When the signal is received, it will show “somebody” on the mobile part.

Components:

Micro:bit          X2

Bright Light LED   X1

Touch Sensor      X1

Motion Sensor    X1

Buzzer Module    X1

Connection Diagram:

Download the program:

Click the download button, the program will be saved to the MICROBIT disk.

a. The program for outside part:

b. The program to the mobile part:

Movable doorbell is done! Try it!

Related Blog Post:
Microbit Tutorials
Micro:bit board: an introduction
5 Easy Steps for you to Quick Start with BBC Microbit
Micro:bit JavaScript Blocks Editor: Hello World
Micro:bit JavaScript Blocks Editor: Turning LEDs on and off
Micro:bit JavaScript Blocks Editor: Detecting button click events
Micro:bit JavaScript Blocks Editor: String interpolation
Micro:bit: MicroPython support

Microbit Projects
Mobile Doorbell System with BOSON and Micro:bit
How To Make A Micro:bit Heart Rate Monitor
Microbit Project micro:bit Laser Target
Micro:bit Surprise box
Microbit Project: Micro:bit Selfie Remote
Micro:bit Project: Light(Mood Lamp)
Micro:bit Project: Yes/No Bear
Smart Fan Control System with Micro:bit
LED writing board (micro:bit compatible)
micro:bit car with DFRobot gamepad
OBLOQ-IoT Module +Micro:bit IoT Flower Watering