HardLabs

Attiny programmer

barafael·attiny-programmer

Attiny programmer PCB layout, top view — open source AVR/Arduino board by barafael

About the Attiny programmer PCB

Attiny programmer is an open source AVR/Arduino PCB design by barafael, published on GitHub. It is a 2-layer board measuring 35.4 × 55.6 mm, with 7 components from 6 distinct parts.

Its main chip is the ATtiny85-20PU, from the AVR/Arduino family. By type, the board carries 5 connectors, 1 IC and 1 capacitor.

It belongs with the usb & debug tools designs in this gallery.

From the project

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

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

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.

Follow the steps from here and here 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…

Attiny programmer, from the project README
From the project README

Main components on the Attiny programmer

ATtiny85-20PU

Attiny programmer bill of materials (BOM)

7 components, 6 distinct parts.

QtyPartRefs
1
ATtiny85-20PU
U1
1
Conn_01x08
J1
1
Power
P1
1
Digital
P3
2
CONN_01X01
P7, P8
1
CP
C1

Attiny programmer design files

The KiCad project lives in the barafael/attiny-programmer repository on GitHub; these links point at the commit this page was built from.

Attiny programmer: common questions

What microcontroller does the Attiny programmer use?

The Attiny programmer is built around the ATtiny85-20PU, from the AVR/Arduino family.

How big is the Attiny programmer PCB?

The Attiny programmer measures 35.4 × 55.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Attiny programmer?

7 components, from 6 distinct parts. The full bill of materials is listed on this page.

Where can I download the Attiny programmer design files?

From the barafael/attiny-programmer repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Attiny programmer design in my own project?

The repository has no license, so all rights stay with barafael. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Attiny programmer without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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