Stepper playground

jhmcaleely·stepper-playground·12v-pico/12v-pico.kicad_pcb

About the Stepper playground PCB

Stepper playground is an open source RP2040/RP2350 PCB design by jhmcaleely, published on GitHub under the MIT license. It is a 2-layer board measuring 82 × 68 mm, with 13 components from 13 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the LM7805_TO220. By type, the board carries 6 connectors, 2 diodes, 2 capacitors, 1 IC, 1 module and 1 switch.

It belongs with the robotics & motion designs in this gallery.

From the project

A scratch project to explore stepper motor control

- Pololu 2134, a carrier board for DRV8834 Stepper Driver - Raspberry Pi Pico - MicroPython

Main components on the Stepper playground

LM7805_TO220 RaspberryPi_Pico

Stepper playground bill of materials (BOM)

13 components, 13 distinct parts.

Qty	Part	Footprint	Refs
1	LM7805_TO220	TO-220-3_Vertical	U1
1	RaspberryPi_Pico	RaspberryPi_Pico_SMD_HandSolder	A1
1	MERG 12v CBUS	TerminalBlock_Phoenix_PT-1,5-4-3.5-H_1x04_P3.50mm_Horizontal	J1
1	Adafruit CAN Pal	PinHeader_1x07_P2.54mm_Vertical	J2
1	DEBUG	PinHeader_1x03_P2.54mm_Vertical	J3
1	UART0	PinSocket_1x03_P2.54mm_Vertical	J4
1	Pico LHS	PinHeader_1x20_P2.54mm_Vertical	J5
1	Pico RHS	PinHeader_1x20_P2.54mm_Vertical	J6
1	RESET	SW_PUSH_6mm	SW1
1	1N4002	D_DO-41_SOD81_P10.16mm_Horizontal	D1
1	1N5817	D_DO-41_SOD81_P10.16mm_Horizontal	D2
1	100uF, 25V	CP_Radial_D4.0mm_P2.00mm	C1
1	4.7uF	CP_Radial_Tantal_D4.5mm_P2.50mm	C2

Stepper playground design files

The KiCad project lives in the jhmcaleely/stepper-playground repository on GitHub; these links point at the commit this page was built from.

Layout12v-pico/12v-pico.kicad_pcb
Schematic12v-pico/12v-pico.kicad_sch

Stepper playground: common questions

What microcontroller does the Stepper playground use?

The Stepper playground is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Stepper playground PCB?

The Stepper playground measures 82 × 68 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Stepper playground?

13 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Stepper playground design files?

From the jhmcaleely/stepper-playground repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Stepper playground design in my own project?

Yes, under the terms of its MIT license, which jhmcaleely chose for the repository.

Can I test firmware for the Stepper playground without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.