4 layers140 × 100 mm
Rcm dish controller
jrseti/Dish
Simple controller with toggle switches to move the dish motors
314 partsCC0-1.0
2 layers145.8 × 76.9 mm
Cm4-robo controller
jrseti/DishSimple controller with toggle switches to move the dish motors
- Size
- 145.8 × 76.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 227
- Pads
- 471
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 3 Mar 2025
- Updated
- 9 Oct 2026
Overview
Cm4-robo controller is an open-source printed circuit board by jrseti, from the jrseti/Dish repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 145.8 × 76.9 mm with 49 parts on 227 nets.
It is built around the TPD4EUSB30DQAR, TPD4EUSB30DQAR-N and FSUSB42MUX, with the USB2514B-I/M2, CL21B106KPQNNNE and FRC0402F3602TS among its other parts. Its parts include 17 capacitors, 17 resistors, 8 ICs, 2 diodes and 1 crystal. It belongs with the computers and single-board computers boards and the Raspberry Pi (Linux) boards of this library.
Main components
12
TPD4EUSB30DQAR
USON-10(1x2.5)-40℃~+85℃ 0.8pF 45W@8/20us 5.5V 5A@8/20us 7V 8V ESD Four channels IEC 61000-4-2、IEC 61000-4-5 Unidirectional USON-10(1x2.5) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)TPD4EUSB30DQAR-N
DFN-10(2.5x1.0)-55℃~+125℃ 0.3pF 13V 3.5A@8/20us 500nA 5V 60W@8/20us 7.8V ESD Four channels IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Unidirectional DFN-10(2.5x1.0) ESD and Surge Protection (TVS/ESD) ROHSBORNESD And Surge Protection (TVS/ESD)
FSUSB42MUX
MSOP-10-40℃~+85℃ 12ns 13ns 2 250ps 2:1 3.7pF 3.9Ω 3V~4.4V 720MHz MSOP-10 Analog Switches, Multiplexers ROHSonsemiAnalog Switches, Multiplexers
USB2514B-I/M2
SQFN-36-EP(6x6)-40℃~+85℃ 3.3V 4 Hub I2C USB 2.0 SQFN-36-EP(6x6) USB HUB Controllers ROHSMicrochip TechnologyUSB HUB Controllers
CL21B106KPQNNNE
080510V 10uF X7R ±10% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
FRC0402F3602TS
0402-55℃~+155℃ 36kΩ 50V 62.5mW Thick Film Resistor ±1% ±100ppm/℃ 0402 Chip Resistor - Surface Mount ROHSFOJANChip Resistor - Surface Mount
EEFCX0J101R
SMD,7.3x4.3mm-55℃~+105℃ 100uF 15mΩ@100kHz 2000hrs@105℃ 4.3mm 5.1A@100kHz 6.3V 7.3mm Polarized Polymer ±20% SMD,7.3x4.3mm Polymer Aluminum Capacitors ROHSPanasonicPolymer Aluminum Capacitors
907-111A1022D10200
插件17.3mm 2 8P Black Female Right Angle Type-A USB 2.0 插件 USB Connectors ROHSJing Extension of the Electronic Co.USB Connectors
LPJG0926HENL
插件UncategorisedLink-PP Intl Technology
KT-0805R
0805-40℃~+85℃ 120° 2.4V 210mcd 40mW 615nm~630nm 645nm Discrete Diode Red Water Clear 0805 LED Indication - Discrete ROHSHubei KENTO ElecLED Indication - Discrete
SMF6.0A
SOD-123FLESD And Surge Protection (TVS/ESD)hongjiacheng
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdDish Repository
This repository contains hardware and firmware work for refurbishing a legacy 3-meter satellite dish into a modern, networked robotic system.
The design is split into two PCB projects that work together over CAN:
Projects
1. controller/ - RCM Dish Controller Board
The main motion-control and compute board for the dish.
- STM32-based two-axis motion controller
- On-board Raspberry Pi Compute Module 4 carrier
- Power, I/O, communications, and safety/control interfaces
- KiCad hardware design plus associated embedded/software assets
See: controller/README.md
2. can_hub/ - CAN Bus Hub
A simple CAN distribution hub that also routes 24 V power to CAN_V+ pins.
See: can_hub/README.md
Repository Layout
controller/: Main controller electronics, docs, and softwarecan_hub/: CAN power/distribution hub hardware
Purpose
Together, these boards provide the control and field-bus backbone for the dish:
controller/runs motion control and local host integrationcan_hub/provides CAN/power fan-out for connected nodes
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10uF 10V | MyParts:C0805 | C2, C3, C11, C13, C14, C15, C16 |
| 5 | 100n | Capacitor_SMD:C_0402_1005Metric | C6, C7, C8, C9, C10 |
| 4 | 36K 1% | MyParts:R0402 | R10, R11, R13, R14 |
| 3 | 1.5kΩ | PCM_JLCPCB:R_0402 | R5, R16, R17 |
| 3 | 100Ω | PCM_JLCPCB:R_0402 | R2, R3, R4 |
| 2 | 100nF | PCM_JLCPCB:C_0402 | C5, C17 |
| 2 | 15pF | PCM_JLCPCB:C_0402 | C1, C4 |
| 2 | 2.2kΩ | MyParts:R0402 | R6, R8 |
| 2 | 5.1kΩ | PCM_JLCPCB:R_0402 | R7, R9 |
| 2 | TPD4EUSB30DQAR | MyParts:USON-10_L2.5-W1.0-P0.50-BL | U7, U8 |
| 2 | TPD4EUSB30DQAR-N | MyParts:DFN-10_L2.5-W1.0-P0.50-BL-A | U2, U6 |
| 1 | 100uF 6.3V | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C12 |
| 1 | 10kΩ | PCM_JLCPCB:R_0402 | R1 |
| 1 | 12kΩ | MyParts:R0402 | R12 |
| 1 | 15kΩ | PCM_JLCPCB:R_0402 | R15 |
| 1 | AP22653W6-7 | MyParts:SOT-23-6_L2.9-W1.6-P0.95-LS2.8-BR | U5 |
| 1 | ComputeModule4-CM4 | CM4_PARTS:Raspberry-Pi-4-Compute-Module | Module1 |
| 1 | Double layer DIP 90° black | MyParts:USB-A-TH_USB-M-51 | USB1 |
| 1 | FSUSB42MUX | MyParts:MSOP-10_L3.0-W3.0-P0.50-LS5.0-BL | U3 |
| 1 | LPJG0926HENL_C22457393 | MyParts:RJ45-TH_LPJG0926HENL_C22457393 | RJ1 |
| 1 | RED | MyParts:LED0805-R-RD | LED1 |
| 1 | ROBOCLAW-2X15A-OEM | MyParts:MOD-TH_ROBOCLAW-OEM-2X15A | U1 |
| 1 | SMF6.0A | PCM_JLCPCB:D_SOD-123FL | D1 |
| 1 | TYPE-C-31-M-12 | MyParts:USB-C_SMD-TYPE-C-31-M-12_1 | USBC1 |
| 1 | USB2514B-I/M2 | MyParts:SQFN-36_L6.0-W6.0-P0.50-BL-EP | U4 |
| 1 | X322524MOB4SI | MyParts:CRYSTAL-SMD_4P-L3.2-W2.5-BL | X1 |
Questions
How big is the Cm4-robo controller PCB?
It measures 145.8 × 76.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cm4-robo controller use?
49 parts, built around the TPD4EUSB30DQAR, TPD4EUSB30DQAR-N, FSUSB42MUX and USB2514B-I/M2. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Cm4-robo controller KiCad files?
From the jrseti/Dish repository on GitHub, at the commit this page was made from: the board is robo-dc-controller/kicad/cm4-robo-controller/cm4-robo-controller.kicad_pcb and its schematic can_hub/kicad/CanBusHub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cm4-robo controller design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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