HardLabs

Roomba wall v3

Petezah·roomba_wall_v3·hardware/roomba_wall_v3.kicad_pcb

Roomba wall v3 PCB layout, top view — open source AVR/Arduino board by Petezah

About the Roomba wall v3 PCB

Roomba wall v3 is an open source AVR/Arduino PCB design by Petezah, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 27.9 × 30 mm, with 13 components from 12 distinct parts.

Its main chip is the ATTINY45-20SU, from the AVR/Arduino family. By type, the board carries 4 resistors, 2 diodes, 1 IC, 1 transistor, 1 crystal and 1 connector.

From the project

A slightly more advanced AVR program for ATTiny45 to transmit a virtual wall signal for an iRobot Roomba

An AVR device, based on ATTiny45, to transmit a virtual wall signal for an iRobot Roomba

/firmware Source for the ATTiny45 firmware /hardware Files describing the board layout, etc

An AVR programmer If you don't have one, you can build mine: https://oshpark.com/sharedprojects/O24XLDbo Though, this is a chicken-egg problem. You can always program the programmer with an Arduino or a Raspberry Pi. AVR-GCC installed Easiest way to get this is 'sudo apt-get install arduino' A 6-position, dual-row IDC cable A 6-position, dual-row, male header to either: Solder onto your board for programming, or…

Roomba wall v3, from the project README
From the project README

Main components on the Roomba wall v3

ATTINY45-20SU

Roomba wall v3 bill of materials (BOM)

13 components, 12 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATTINY45-20SU
U1
1
Q_NPN_BEC
Q1
1
8MHZ
8Mhz
Y1
1
AVR-ISP-6
CON1
1
Battery_Cell
BT1
1
Button
SW1
1
LED
D1
1
IR_LED
D2
1
10UF
10uF
C2
2
560
R1, R2
1
51
R3
1
10K
10k
R4

Roomba wall v3 design files

The KiCad project lives in the Petezah/roomba_wall_v3 repository on GitHub; these links point at the commit this page was built from.

Roomba wall v3: common questions

What microcontroller does the Roomba wall v3 use?

The Roomba wall v3 is built around the ATTINY45-20SU, from the AVR/Arduino family.

How big is the Roomba wall v3 PCB?

The Roomba wall v3 measures 27.9 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Roomba wall v3?

13 components, from 12 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Roomba wall v3 design files?

From the Petezah/roomba_wall_v3 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Roomba wall v3 design in my own project?

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

Can I test firmware for the Roomba wall v3 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.

Similar boards