HardLabs

Badge2020

bornhack·badge2020

Badge2020 PCB layout, top view — open source Microchip SAM board by bornhack

About the Badge2020 PCB

Badge2020 is an open source Microchip SAM PCB design by bornhack, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 71.5 × 141.1 mm, with 346 components from 36 distinct parts.

Its main chip is the SAMD21G18A, from the Microchip SAM family. Other key parts include the IS31FL3731-QF, HX9193-33GB, GD25Q32C, QX2304 and IRM-H6xxT. By type, the board carries 290 diodes, 18 capacitors, 16 resistors, 7 ICs, 6 switches and 3 transistors.

It belongs with the wearables designs in this gallery.

From the project

BornHack Badge 2020

Similar to the last couple of years, this badge has an ARM cortex M0+ as the main controller, but on this badge it's the SAMD21 from Microchip, with 4 times as much flash and RAM compared to the chips from the previous badges.

This makes it possible to run Adafruit CircuitPython on this badge, which lowers the bar for how easy it is to get started hacking on the badge, since all you need is a USB cable to connect it to your computer and an editor (vi, nano, VSCode, notepad, you name it) to change the code.py file on the badge. No need to have a tool chain installed on your computer, it's all…

Main components on the Badge2020

SAMD21G18AIS31FL3731-QFHX9193-33GBGD25Q32CQX2304IRM-H6xxT

Badge2020 bill of materials (BOM)

346 components, 36 distinct parts.

QtyPartRefs
1
SAMD21G18A
IC1
2
IS31FL3731-QF
U1, U2
1
HX9193-33GB
U3
1
GD25Q32C
U4
1
QX2304
U5
1
IRM-H6xxT
U6
1
CJ2302
Q1
1
CJ2305
Q2
1
BC817
Q3
1
Badgelife_sao_connector_v169bis
X1
1
USB_C
J1
1
DEBUG
J2
2
AA
BT1, BT2
1
RESET
SW1
1
A
SW2
1
B
SW3
1
X
SW4
1
Y
SW5
1
POWER
SW6
288
LED_Small_ALT
D1, D2, D3, D4, D5, D6, D7, D8 +280
Show 16 more
QtyPartRefs
1
LED
D289
1
IR19-21C/TR8(AQL)
D290
1
47uH
L1
5
1uF
C1, C4, C7, C8, C11
5
100nF
C2, C3, C5, C6, C9
5
10uF
C10, C12, C13, C14, C15
2
100uF
C16, C17
1
2.2uF
C18
2
20k
R1, R2
5
4.7k
R3, R9, R11, R12, R13
1
6.8k
R4
2
5.1k
R5, R6
2
1k
R7, R15
2
100
R8, R16
1
10k
R10
1
100k
R14

Badge2020 design files

The KiCad project lives in the bornhack/badge2020 repository on GitHub; these links point at the commit this page was built from.

Badge2020: common questions

What microcontroller does the Badge2020 use?

The Badge2020 is built around the SAMD21G18A, from the Microchip SAM family.

How big is the Badge2020 PCB?

The Badge2020 measures 71.5 × 141.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Badge2020?

346 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the Badge2020 design files?

From the bornhack/badge2020 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Badge2020 design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which bornhack chose for the repository.

Can I test firmware for the Badge2020 without the hardware?

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

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