HardLabs

ControlBoard

mgamota2·PicoW·TrainControl/PCB (KiCAD)/ControlBoard/ControlBoard.kicad_pcb

ControlBoard PCB layout, top view — open source RP2040/RP2350 board by mgamota2

About the ControlBoard PCB

ControlBoard is an open source RP2040/RP2350 PCB design by mgamota2, published on GitHub. It is a 2-layer board measuring 120 × 96.5 mm, with 37 components from 13 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the PJA3404_R1_00001 and L293D. By type, the board carries 10 resistors, 9 transistors, 6 ICs, 6 diodes, 4 capacitors and 1 connector.

From the project

index.html : This file contains the HTML, CSS, and JavaScript code to create, style, and add functionality to the slider and buttons.

index.html : This file contains the HTML, CSS, and JavaScript code to create, style, and add functionality to the slider and buttons.

main.py : This file initilizes a train object and parses requests from the server to evaluate user input and change speedm direction, or switching tracks accordingly

train_func.py : This file defines the trackPins and railPins classes which correspond to the switching tracks and train direction and speed, respectively

Main components on the ControlBoard

PJA3404_R1_00001L293DPico

ControlBoard bill of materials (BOM)

37 components, 13 distinct parts.

QtyPartRefs
4
PJA3404_R1_00001
IC1, IC2, IC3, IC4
1
L293D
U1
1
Pico
U2
9
NDS332P
Q1, Q2, Q3, Q4, Q6, Q8, Q9, Q10 +1
1
694106301002
J1
1
UWF1215S-3WR3
PS1
6
LED
D1, D2, D3, D4, D5, D6
1
100uF
C1
1
0.1uF
C2
1
10uF
C3
1
1uF
C4
4
10k
R1, R2, R3, R4
6
300
R5, R6, R7, R8, R9, R10

ControlBoard design files

The KiCad project lives in the mgamota2/PicoW repository on GitHub; these links point at the commit this page was built from.

ControlBoard: common questions

What microcontroller does the ControlBoard use?

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

How big is the ControlBoard PCB?

The ControlBoard measures 120 × 96.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ControlBoard?

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

Where can I download the ControlBoard design files?

From the mgamota2/PicoW repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the ControlBoard design in my own project?

The repository has no license, so all rights stay with mgamota2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ControlBoard 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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