HardLabs

CircuitPythonBadge

neubauek·CircuitPythonBadge·Kicad Files/CircuitPythonBadge v1_3/CircuitPythonBadge v1_3.kicad_pcb

CircuitPythonBadge PCB layout, top view — open source Microchip SAM board by neubauek

About the CircuitPythonBadge PCB

CircuitPythonBadge is an open source Microchip SAM PCB design by neubauek, published on GitHub. It is a 2-layer board measuring 90 × 90 mm, with 62 components from 29 distinct parts.

Its main chip is the ATSAMD51J19A-AU, from the Microchip SAM family. Other key parts include the W25Q64JVSSIQ, AP2112K-3.3, LIS3DHTR, PAM8301 and SH1106_1.3. By type, the board carries 18 capacitors, 14 resistors, 12 LEDs, 6 ICs, 3 crystals and 2 transistors.

It belongs with the wearables and audio designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

Open Source Hardware Circuit Python Badge

https://kevinneubauer.com/portfolio/circuitpython-badge/

Known Issue(s): V1.2: - The VDD pin on the PAM8301 chip is missing a 1 uF and a 10 uF decoupling capacitor. Without these, the speaker audio will randomly drop out. Fixed in v1.3.

Main components on the CircuitPythonBadge

ATSAMD51J19A-AUW25Q64JVSSIQAP2112K-3.3LIS3DHTRPAM8301SH1106_1.3

CircuitPythonBadge bill of materials (BOM)

62 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ATSAMD51J19A-AU
U1
1
W25Q64JVSSIQ
U2
1
AP2112K-3.3
U3
1
LIS3DHTR
U4
1
PAM8301
U5
1
SH1106_1.3
U6
2
DMG341
Q1, Q2
1
10118192-0001LF
X2
1
Badgelife_sao_connector_v169bis
X3
1
FC-135 32.7680KA-A5
Y1
1
SWD_Pads
J23
1
Battery
BT1
1
5V-500mA
F1
1
ST-025BT
SP1
1
JS202011SCQN
SW5
1
RED
LED1
1
GREEN
LED4
10
SK6812
LED5, LED6, LED7, LED8, LED9, LED10, LED11, LED12 +2
1
MBR120
D1
1
10uH
L1
Show 9 more
QtyPartRefs
2
13pF
C1, C2
9
0.1uF
C3, C4, C9, C10, C11, C12, C13, C17 +1
3
1uF
C5, C7, C16
4
10uF
C6, C8, C14, C15
7
10K
R1, R2, R3, R4, R8, R9, R14
1
330
R5
2
100K
R6, R7
3
1K
R10, R11, R12
1
47K
R13

CircuitPythonBadge design files

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

CircuitPythonBadge: common questions

What microcontroller does the CircuitPythonBadge use?

The CircuitPythonBadge is built around the ATSAMD51J19A-AU, from the Microchip SAM family.

How big is the CircuitPythonBadge PCB?

The CircuitPythonBadge measures 90 × 90 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CircuitPythonBadge?

62 components, from 29 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 CircuitPythonBadge design files?

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

Can I use the CircuitPythonBadge design in my own project?

The repository has no license, so all rights stay with neubauek. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the CircuitPythonBadge 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.

Earlier revisions in the repo: CircuitPythonBadge v1_2

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