How to Make a Secret Commiunicator Using Micro Bit

I was inspirated in 'othermachines' you tube chanal.

here what i got from it -https://youtu.be/mqlMo4LbfKQ

Here what i added on my self -
- lcd displays
- key pad for other micro bit
- power banks
- Extra code for it

2 - micro bits
2 - lcd displays with i2c modules
2 - 4×4 matrix keypad
2 - mini breakout boards for microbit
2 - power banks

Fitstly supply these all items

It's very easy to plug in.
You want to do is just push inside micro bit to break out board

Connect lcd display using jumper wiers

Micro bit's output voltage is 3V but lcd display needs minimum 5V. There for i used two female jumper wiers
and connected to usb cable

Write letters on paper and stick it to keypad using double tape.
pressing 'shift' will call the shift function.
Shift function sets A to O , B to O , C to Q etc...
(It is showed in a picture)

Assembling all items will make it portable.

Get source code here-
https://makecode.microbit.org/_A6wE8CD4fhA1

Type words and press 'B' button in micro bit
Words can be see in other micro bits lcd display.