HardLabs

Motorized faders

Ilosariph·motorized-faders·motorized-faders/motorized-faders.kicad_pcb

Motorized faders PCB layout, top view — open source RP2040/RP2350 board by Ilosariph

About the Motorized faders PCB

Motorized faders is an open source RP2040/RP2350 PCB design by Ilosariph, published on GitHub. It is a 2-layer board measuring 155 × 93 mm, with 40 components from 11 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family.

From the project

RP2040 board (Pico-clone with RTL8720DN WiFi — GP4/GP5 not exposed) + SparkFun TB6612FNG dual motor driver + Alps RS60N11M9 motorized faders.

RP2040 board (Pico-clone with RTL8720DN WiFi — GP4/GP5 not exposed) + SparkFun TB6612FNG dual motor driver + Alps RS60N11M9 motorized faders.

The Pico gets power from USB. The 10V supply powers the motors only. All grounds must be connected together.

If the fader moves in the wrong direction, swap A and B.

Terminal T (touch) is unused — the firmware detects move completion from the PID state machine (deadband + settle timer), not from touch.

Main components on the Motorized faders

RaspberryPi_Pico

Motorized faders bill of materials (BOM)

40 components, 11 distinct parts.

QtyPartRefs
1
RaspberryPi_Pico
A1
4
10nF
C_F1_WIPER, C_F2_WIPER, C_F3_WIPER, C_F4_WIPER
2
100nF
C_MCP3208_VDD_GND, C_MCP3208_VREF_GND
8
Conn_01x08
J_DISP1, J_DISP2, J_DISP3, J_DISP4, J_MOT_BOB_A_P1, J_MOT_BOB_A_P2, J_MOT_BOB_B_P1, J_MOT_BOB_B_P2
4
Conn_01x03
J_F1_GEN1, J_F2_GEN1, J_F3_GEN1, J_F4_GEN1
4
Conn_01x02
J_F1_MOT1, J_F2_MOT1, J_F3_MOT1, J_F4_MOT1
5
10kOhm
R_F1_WIPER, R_F2_WIPER, R_F3_WIPER, R_F4_WIPER, R_SW_F4
1
2.2kOhm
R_SW_F2
2
4.7kOhm
R_SW_F3, R_SW_G2
6
B3F-4050
SW_F1, SW_F2, SW_F3, SW_F4, SW_G1, SW_G2
3
TestPoint
TP_3V3, TP_F1_ADC, TP_VM1

Motorized faders design files

The KiCad project lives in the Ilosariph/motorized-faders repository on GitHub; these links point at the commit this page was built from.

Motorized faders: common questions

What microcontroller does the Motorized faders use?

The Motorized faders is built around the RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Motorized faders PCB?

The Motorized faders measures 155 × 93 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Motorized faders?

40 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Motorized faders design files?

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

Can I use the Motorized faders design in my own project?

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

Can I test firmware for the Motorized faders 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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