HardLabs

DiyIrTower

maehw·DiyIrTower·pcb/DiyIrTower.kicad_pcb

DiyIrTower PCB layout, top view — open source AVR/Arduino board by maehw

About the DiyIrTower PCB

DiyIrTower is an open source AVR/Arduino PCB design by maehw, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 32 × 48 mm, with 10 components from 8 distinct parts.

Its main chip is the ATtiny13-20P, from the AVR/Arduino family. Other key parts include the TSOP43xx. By type, the board carries 3 diodes, 3 resistors, 2 ICs and 2 connectors.

From the project

Do-it-yourself infrared serial communication tower (compatible with LEGO IR serial tower)

Can be used as a replacement of the original LEGO IR serial tower with programs and platforms such as

WebPBrick: web-based NQC IDE (see also: github.com/maehw/WebPBrick/) Bricx Command Center (BricxCC): 32-bit Windows IDE firmdl3 command line download tool probably other software

to load user programs and firmware on the yellow LEGO Mindstorms RCX programmable brick.

DiyIrTower, from the project README
From the project README

Main components on the DiyIrTower

ATtiny13-20PTSOP43xx

DiyIrTower bill of materials (BOM)

10 components, 8 distinct parts.

QtyPartRefs
1
ATtiny13-20P
U1
1
TSOP43xx
U2
1
Conn_01x05
J1
1
AVR-ISP-6
J2
1
ACT LED
D1
1
TSAL6200
D2
1
POWER LED
D3
3
680
R1, R2, R3

DiyIrTower design files

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

DiyIrTower: common questions

What microcontroller does the DiyIrTower use?

The DiyIrTower is built around the ATtiny13-20P, from the AVR/Arduino family.

How big is the DiyIrTower PCB?

The DiyIrTower measures 32 × 48 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the DiyIrTower?

10 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the DiyIrTower design files?

From the maehw/DiyIrTower repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the DiyIrTower design in my own project?

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

Can I test firmware for the DiyIrTower 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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