HardLabs

Motherboard

Luca-Jones·enph-253-pet-rescue·pcb/motherboard/motherboard.kicad_pcb

Motherboard PCB layout, top view — open source RP2040/RP2350 board by Luca-Jones

About the Motherboard PCB

Motherboard is an open source RP2040/RP2350 PCB design by Luca-Jones, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 31 components from 23 distinct parts.

Its main chip is the MCT6, from the RP2040/RP2350 family. Other key parts include the MC33269T-3.3G and LT1161. By type, the board carries 13 connectors, 8 test points, 6 resistors, 3 ICs and 1 capacitor.

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

From the project

- Luca Jones - Harchetan Chohan - Taichi Kamei - Coen Molyneaux

- Luca Jones - Harchetan Chohan - Taichi Kamei - Coen Molyneaux

The mechanical design was done with Onshape as our CAD tool. It is simple to use and allows for collaboration and version control. Many different manufacturing techniques were used such as 3D printing, laser jet cutting, water jet cutting, lathing, and milling.

The chassis was built out of hardboard and reinforced with water-jet cut aluminium bars. This component required the most communication to perfect as every other part of the robot needs to screw into it.

Motherboard, from the project README
From the project README

Main components on the Motherboard

MCT6MC33269T-3.3GLT1161

Motherboard bill of materials (BOM)

31 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCT6
ESP32 PICO KIT
U1
1
MC33269T-3.3G
UA9805
U2
1
LT1161
LM311
U3
1
B2B-XH-A
J1
1
S2B-XH-A
B5B-XH-A
J2
1
S2B-XH-A
B3B-XH-A
J3
3
B4B-XH-A
J4, J6, J7
1
B5B-XH-A
B2B-XH-A
J5
3
B5B-XH-A
J8, J12, J13
3
B3B-XH-A
J9, J10, J11
1
GPIO1
TP1
1
GPIO3
TP2
1
GPIO7
TP3
1
GPIO8
TP4
1
GPIO20
TP5
1
GPIO 0
TP7
1
GPIO 39
TP8
1
GPIO 36
TP9
1
100NF
0.47uF
C1
2
330R
1k
R1, R6
Show 3 more
QtyPartRefs
1
330R
100k
R2
2
10K
100k
R3, R5
1
100k
R4

Motherboard design files

The KiCad project lives in the Luca-Jones/enph-253-pet-rescue repository on GitHub; these links point at the commit this page was built from.

Motherboard: common questions

What microcontroller does the Motherboard use?

The Motherboard is built around the MCT6, from the RP2040/RP2350 family.

How big is the Motherboard PCB?

The Motherboard measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Motherboard?

31 components, from 23 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 Motherboard design files?

From the Luca-Jones/enph-253-pet-rescue repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Motherboard design in my own project?

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

Can I test firmware for the Motherboard 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.

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