HardLabs

Controller

dj505·Pad-Light-Kit·Addons/Comms Controller/Controller.kicad_pcb

Controller PCB layout, top view — open source RP2040/RP2350 board by dj505

About the Controller PCB

Controller is an open source RP2040/RP2350 PCB design by dj505, published on GitHub. It is a 2-layer board measuring 55.9 × 41.3 mm, with 9 components from 7 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the SP3485EN. By type, the board carries 3 connectors, 3 resistors, 2 ICs and 1 capacitor.

From the project

A PIU pad lighting upgrade kit, featuring a 5x5 RGB LED grid

This addon allows patterns to be uploaded to the main board(s) over RS485. Don't mix up the RS485 and power connectors!

Main components on the Controller

SP3485ENPico

Controller bill of materials (BOM)

9 components, 7 distinct parts.

QtyPartRefs
1
SP3485EN
U1
1
Pico
U2
1
GP1 Bodge
J1
2
Conn_01x02
J2, J3
1
100nF
C1
2
4.7k
R1, R3
1
120
R2

Controller design files

The KiCad project lives in the dj505/Pad-Light-Kit repository on GitHub; these links point at the commit this page was built from.

Controller: common questions

What microcontroller does the Controller use?

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

How big is the Controller PCB?

The Controller measures 55.9 × 41.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Controller?

9 components, from 7 distinct parts. The full bill of materials is listed on this page.

Where can I download the Controller design files?

From the dj505/Pad-Light-Kit repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Controller design in my own project?

The repository has no license, so all rights stay with dj505. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Controller 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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