HardLabs

Cm4-robo controller

jrseti·Dish·robo-dc-controller/kicad/cm4-robo-controller/cm4-robo-controller.kicad_pcb

Cm4-robo controller PCB layout, top view — open source Raspberry Pi board by jrseti

About the Cm4-robo controller PCB

Cm4-robo controller is an open source Raspberry Pi PCB design by jrseti, published on GitHub under the CC0-1.0 license. It is a 2-layer board measuring 145.8 × 76.9 mm, with 49 components from 26 distinct parts.

Its main chip is the ComputeModule4-CM4, from the Raspberry Pi family. Other key parts include the RoboClaw 2x15A OEM, TPD4EUSB30DQAR-N, FSUSB42MUX, USB2514B-I/M2 and AP22653W6-7. By type, the board carries 17 capacitors, 17 resistors, 8 ICs, 1 crystal, 1 LED and 1 diode.

From the project

Simple controller with toggle switches to move the dish motors

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:

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

Main components on the Cm4-robo controller

RoboClaw 2x15A OEMTPD4EUSB30DQAR-NFSUSB42MUXUSB2514B-I/M2AP22653W6-7TPD4EUSB30DQAR

Cm4-robo controller bill of materials (BOM)

49 components, 26 distinct parts.

QtyPartRefs
1
RoboClaw 2x15A OEM
ROBOCLAW-2X15A-OEM
Basicmicro
U1
2
TPD4EUSB30DQAR-N
BORN(伯恩半导体)
U2, U6
1
FSUSB42MUX
onsemi(安森美)
U3
1
USB2514B-I/M2
MICROCHIP(美国微芯)
U4
1
AP22653W6-7
DIODES(美台)
U5
2
TPD4EUSB30DQAR
TI(德州仪器)
U7, U8
1
X322524MOB4SI
YXC(扬兴晶振)
X1
1
ComputeModule4-CM4
Module1
1
LPJG0926HENL
LPJG0926HENL_C22457393
LINK-PP(连普科技)
RJ1
1
907-111A1022D10200
Double layer DIP 90° black
精拓金
USB1
1
TYPE-C-31-M-12
韩国韩荣
USBC1
1
KT-0805R
RED
KENTO
LED1
1
SMF6.0A
hongjiacheng
D1
2
15pF
FH(Guangdong Fenghua Advanced Tech)
C1, C4
7
CL21B106KPQNNNE
10uF 10V
SAMSUNG(三星)
C2, C3, C11, C13, C14, C15, C16
2
100nF
Samsung Electro-Mechanics
C5, C17
5
100n
Samsung Electro-Mechanics
C6, C7, C8, C9, C10
1
EEFCX0J101R
100uF 6.3V
PANASONIC
C12
1
10kΩ
UNI-ROYAL(Uniroyal Elec)
R1
3
100Ω
UNI-ROYAL(Uniroyal Elec)
R2, R3, R4
Show 6 more
QtyPartRefs
3
1.5kΩ
UNI-ROYAL(Uniroyal Elec)
R5, R16, R17
2
2.2kΩ
UNI-ROYAL(Uniroyal Elec)
R6, R8
2
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R7, R9
4
FRC0402F3602TS
36K 1%
FOJAN(富捷)
R10, R11, R13, R14
1
12kΩ
UNI-ROYAL(Uniroyal Elec)
R12
1
15kΩ
UNI-ROYAL(Uniroyal Elec)
R15

Cm4-robo controller design files

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

Cm4-robo controller: common questions

What microcontroller does the Cm4-robo controller use?

The Cm4-robo controller is built around the ComputeModule4-CM4, from the Raspberry Pi family.

How big is the Cm4-robo controller PCB?

The Cm4-robo controller measures 145.8 × 76.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Cm4-robo controller?

49 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Cm4-robo controller design files?

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

Can I use the Cm4-robo controller design in my own project?

Yes, under the terms of its CC0-1.0 license, which jrseti chose for the repository.

Can I test firmware for the Cm4-robo controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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