HardLabs

ATtinyTorture

flynn-28·ATtinyTorture·hardware/ATtinyTorture.kicad_pcb

ATtinyTorture PCB layout, top view — open source AVR/Arduino board by flynn-28

About the ATtinyTorture PCB

ATtinyTorture is an open source AVR/Arduino PCB design by flynn-28, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 37.2 × 31.8 mm, with 6 components from 6 distinct parts.

Its main chip is the ATTINY85-20PU, from the AVR/Arduino family. By type, the board carries 1 IC, 1 transistor, 1 buzzer, 1 switch and 1 resistor.

From the project

ATtinyTorture is a ATtiny85 based pcb that beeps at random times throughout the day.

The following link is to a digikey cart containing these parts: https://www.digikey.com/en/mylists/list/X8WIXUA92R

The parts from digikey come out to $3.64, plus three pcbs from OSHPark are $9.15 ($3.05/board) making the total cost for an assembled device $6.69.

Main components on the ATtinyTorture

ATTINY85-20PU

ATtinyTorture bill of materials (BOM)

6 components, 6 distinct parts.

QtyPartRefs
1
ATTINY85-20PU
Microchip Technology
U1
1
2N2222A-TO92
Q1
1
BS-7
B1
1
Buzzer
BZ1
1
SW_SPDT
SW1
1
10K
R1

ATtinyTorture design files

The KiCad project lives in the flynn-28/ATtinyTorture repository on GitHub; these links point at the commit this page was built from.

ATtinyTorture: common questions

What microcontroller does the ATtinyTorture use?

The ATtinyTorture is built around the ATTINY85-20PU, from the AVR/Arduino family.

How big is the ATtinyTorture PCB?

The ATtinyTorture measures 37.2 × 31.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ATtinyTorture?

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

Where can I download the ATtinyTorture design files?

From the flynn-28/ATtinyTorture repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ATtinyTorture design in my own project?

Yes, under the terms of its GPL-3.0 license, which flynn-28 chose for the repository.

Can I test firmware for the ATtinyTorture 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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