BoxTurtleMC

About the BoxTurtleMC PCB

BoxTurtleMC is an open source RP2040/RP2350 PCB design by z00mantwo, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 110 × 60 mm, with 31 components from 12 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the CJMCU-1051_TJA1051_CAN_Transceiver. By type, the board carries 8 modules, 8 switches, 2 ICs, 2 connectors, 1 diode and 1 resistor.

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

From the project

The main focus is combining this project with a BigTreeTech MMB. This will enable full BoxTurtle control of the DC motor powered re-spoolers. It also allows a nice upgrade path from a ERCF to the BoxTurtle. It includes additional switch ports to support the "BoxTurtle Lane Controls" mod and additional power connections to support Project TurtleScreen. This board will also have the option of controlling up to 8 re-spooler motors so it should be useful in larger custom BoxTurtle setups with more than 4 lanes.

Main components on the BoxTurtleMC

CJMCU-1051_TJA1051_CAN_Transceiver Pico

BoxTurtleMC bill of materials (BOM)

31 components, 12 distinct parts.

Qty	Part	Footprint	Refs
1	CJMCU-1051_TJA1051_CAN_Transceiver	CJMCU-1051_TJA1051_CAN_Transceiver	U1
1	Pico	RaspberryPi_Pico_Common_THT	U2
8	Conn_01x02 Pin1+ Pin2-	JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	M1, M2, M3, M4, M5, M6, M7, M8
2	MX3.0_Connector_CANBUS	MX3.0 Connector CANBUS	CAN1, CAN2
2	1	JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	3.3V1, CYD1
1	Jumper_2_Small_Bridged	PinHeader_1x02_P2.54mm_Vertical	120J1
1	CANBUS	PinHeader_1x02_P2.54mm_Vertical	CANOUT1
4	~	DRV8833_Module	DRV1, DRV2, DRV3, DRV4
1	MP1583_Module	MP1584_Module	PS1
8	Conn_01x02 Pin1+ Pin2-	JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8
1	1N5817	D_DO-41_SOD81_P10.16mm_Horizontal	D1
1	120 Ohm	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R1

BoxTurtleMC design files

The KiCad project lives in the z00mantwo/BoxTurtleMC repository on GitHub; these links point at the commit this page was built from.

LayoutBoxTurtleMC.kicad_pcb
SchematicBoxTurtleMC.kicad_sch

BoxTurtleMC: common questions

What microcontroller does the BoxTurtleMC use?

The BoxTurtleMC is built around the Pico, from the RP2040/RP2350 family.

How big is the BoxTurtleMC PCB?

The BoxTurtleMC measures 110 × 60 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BoxTurtleMC?

31 components, from 12 distinct parts. The full bill of materials is listed on this page.

Where can I download the BoxTurtleMC design files?

From the z00mantwo/BoxTurtleMC repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the BoxTurtleMC design in my own project?

Yes, under the terms of its Apache-2.0 license, which z00mantwo chose for the repository.

Can I test firmware for the BoxTurtleMC 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.