HardLabs

Badge

joshbressers·badge·kicad/badge.kicad_pcb

Badge PCB layout, top view — open source AVR/Arduino board by joshbressers

About the Badge PCB

Badge is an open source AVR/Arduino PCB design by joshbressers, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 76.2 × 113 mm, with 99 components from 10 distinct parts.

Its main chip is the ATtiny85-20SF, from the AVR/Arduino family. Other key parts include the CD4021B and SN74HC595. By type, the board carries 64 diodes, 16 resistors, 8 test points, 6 switches and 4 ICs.

It belongs with the wearables designs in this gallery.

From the project

An open source badge

This code is no longer maintained, everything got too complicated. You should go to the new home of this project https://github.com/OpenBadgeProject

This is the Open Badge Project. The idea behind this is to have a very low cost, low power electronic badge. These could be built just for fun, or if you're throwing a conference, feel free to use the PCB as the badge, maybe build some, maybe let the folks at the conference build them.

Badge, from the project README
From the project README

Main components on the Badge

ATtiny85-20SFCD4021BSN74HC595

Badge bill of materials (BOM)

99 components, 10 distinct parts.

QtyPartRefs
1
ATtiny85-20SF
U1
1
CD4021B
U2
2
SN74HC595
U3, U4
1
BS-7
CR2032
MPD (Memory Protection Devices)
BAT1
1
TL3315NF160Q
C83206
E-Switch
S1
5
TL3315NF160Q
C83206
E-Switch
S2, S3, S4, S5, S6
8
TestPoint
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
64
LED
D1, D2, D3, D4, D5, D6, D7, D8 +56
8
100
R1, R2, R3, R4, R5, R6, R7, R8
8
10k
R9, R10, R11, R12, R13, R14, R15, R16

Badge design files

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

Badge: common questions

What microcontroller does the Badge use?

The Badge is built around the ATtiny85-20SF, from the AVR/Arduino family.

How big is the Badge PCB?

The Badge measures 76.2 × 113 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Badge?

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

Where can I download the Badge design files?

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

Can I use the Badge design in my own project?

Yes, under the terms of its Apache-2.0 license, which joshbressers chose for the repository.

Can I test firmware for the Badge 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