HardLabs

OtterPillG

Jana-Marie·OtterPill·HW vG1.0/OtterPillG.kicad_pcb

OtterPillG PCB layout, top view — open source STM32 board by Jana-Marie

About the OtterPillG PCB

OtterPillG is an open source STM32 PCB design by Jana-Marie, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 43.2 × 17.6 mm, with 37 components from 26 distinct parts.

Its main chip is the STM32F072CBTX, from the STM32 family. Other key parts include the USBLC6-4, SY8201 and FUSB302BMPX. By type, the board carries 13 resistors, 10 capacitors, 6 connectors, 4 ICs, 2 diodes and 1 switch.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

stm32f072 dev board with arduino nano alike pinout

Main components on the OtterPillG

USBLC6-4STM32F072CBTXSY8201FUSB302BMPX

OtterPillG bill of materials (BOM)

37 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
USBLC6-4
U1
1
STM32F072CBTX
STM32G071C8Tx
U2
1
SY8201
U3
1
FUSB302BMPX
CJ431
U4
1
C167321
USB-c
J1
1
VBUS
J2
1
1
J3
1
2
J4
1
SWD
J5
1
GND
J6
1
DFU
SW1
1
C2286
LED RED
D1
1
C72043
LED GREEN
D2
1
4U7
4u7
L1
3
C15850
10u 25V
C1, C4, C11
1
C14663
100n 50V
C2
4
C1525
100n 50V
C3, C5, C8, C9
2
100n 50V
C12, C13
2
DNP
R1, R2
4
3K3
3k3
R3, R4, R5, R11
Show 6 more
QtyPartRefs
2
100K
100k
R6, R12
1
22.1K
22k
R7
1
1
R8
1
100
R9
1
3K3
100k
R10
1
100
R13

OtterPillG design files

The KiCad project lives in the Jana-Marie/OtterPill repository on GitHub; these links point at the commit this page was built from.

OtterPillG: common questions

What microcontroller does the OtterPillG use?

The OtterPillG is built around the STM32F072CBTX, from the STM32 family.

How big is the OtterPillG PCB?

The OtterPillG measures 43.2 × 17.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the OtterPillG?

37 components, from 26 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 OtterPillG design files?

From the Jana-Marie/OtterPill repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the OtterPillG design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which Jana-Marie chose for the repository.

Can I test firmware for the OtterPillG without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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