Computer, IOT / Domoticz

Morse with a ATTINY85

Last Updated or created 2022-07-17

Using above schematic and attiny program you can make a mini morse trainer. It runs on a single CR2032!

I’ve got a attiny85 programmer as pictured below.

A Attiny85 chip is a 8 pin microcontroller, but with far less pin’s and its most of the times just a DIP/DIL (Dual in line)

When using the Arduino IDE:

  • Preferences : Add board url :
    https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json
  • Set board info like: (NOTE PROGRAMMER USBasp)
  • Burn bootloader
  • After that compile and upload

Source code used: https://github.com/andyhighnumber/Attiny-Arduino-Games/tree/master/MorseAttinyArcade

I had to short JP2 to get the USBasp into slow burn mode, else the attiny85 could not be found

Short JP2

Hard to do without a propper morse key!