https://github.com/barafael/attiny-programmer

A PCB board to use an Arduino Uno to burn programs to an AVR attiny85 8-pin microcontroller
https://github.com/barafael/attiny-programmer

arduino attiny85 isp pcb

Last synced: 11 months ago
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A PCB board to use an Arduino Uno to burn programs to an AVR attiny85 8-pin microcontroller

• Host: GitHub
• URL: https://github.com/barafael/attiny-programmer
• Owner: barafael
• Created: 2018-01-12T22:09:55.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-11-10T13:47:41.000Z (over 7 years ago)
• Last Synced: 2025-07-14T11:00:03.625Z (12 months ago)
• Topics: arduino, attiny85, isp, pcb
• Size: 1.36 MB
• Stars: 1
• Watchers: 2
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# attiny-programmer

A PCB board to use an Arduino Uno for burning programs to an AVR attiny85 8-pin microcontroller

## What it does

You can use this Arduino shield to program your attiny chip with a regular Arduino Uno.

To test if it works, you can try the standard blink sketch using pin 2 - that is connected to pin 13

of the UNO, which has an LED.

## Preparations

* Follow the steps from [here](http://highlowtech.org/?p=1695) and [here](http://highlowtech.org/?p=1706) to install support for your attiny85 in your Arduino IDE

* Solder appropriate headers and the 10uF capacitor to the shield

* Make sure you have selected the standard Arduino IDE presets for the Arduino Uno (Board: Arduino/Genuino Uno, Programmer: AVRISP mkII)

* Select the sketch ```File -> Examples -> ArduinoISP``` and burn it to your Uno

* Attach the shield

* Switch to the attiny board and your appropriate processor (like attiny85) in your IDE

* Switch your programmer to 'Arduino as ISP'

* You are now ready to write your attiny85 program to your chip!

## Circuit

![alt text](https://raw.githubusercontent.com/barafael/attiny-programmer/master/schematic.png)

Based on the circuit [here](http://highlowtech.org/?p=1706). You can either

bridge the gaps to have a permanent connection to the Arduino Uno, or you can

solder 2.54'' switches to toggle between the programmer and the output row.

## PCB

![alt text](https://raw.githubusercontent.com/barafael/attiny-programmer/master/pcb_render.png)

## Note

If your attiny85 becomes very hot, you inserted it the wrong way. It will still

work (mine did...) but don't test this too often!