HardLabs

CM5IO

rassweiler·pi-networked-counter·Schematics/Assembly/Pi 5/CM5IO.kicad_pcb

CM5IO PCB layout, top view — open source Raspberry Pi board by rassweiler

About the CM5IO PCB

CM5IO is an open source Raspberry Pi PCB design by rassweiler, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 160 × 90 mm, with 62 components from 35 distinct parts.

Its main chip is the ComputeModule5-CM5, from the Raspberry Pi family. Other key parts include the TPD4EUSB30, MagJack-A70-112-331N126, 74LVC1G07SE-7, AP22653W6 and ASEK-32.768KHZ-L-R-T. By type, the board carries 19 capacitors, 14 resistors, 13 connectors, 9 ICs, 3 diodes and 1 battery holder.

It belongs with the displays & leds, power & battery and dev boards & breakouts designs in this gallery.

From the project

3d printed counter using Pi5, python, pyqt6, and sqlite that can export to folders or sharepoint

- Setup keyring for sharepoint integration Run seahorse and make sure there is a default keystore

- Copy the desktop file to autostart the app:

Then restart the system to get the app in the menu under other, then right click the app and select add to taskbar

- Add to the .settup.toml file your sharepoint access details:

- run the gettoken.sh` script once to initialise your sharepoint token, it should provide a link and a key to login using a browser.

CM5IO, from the project README
From the project README

Main components on the CM5IO

TPD4EUSB30MagJack-A70-112-331N12674LVC1G07SE-7AP22653W6ASEK-32.768KHZ-L-R-TAP3441SHE-7BRT9742SNGVRT9742GGJ5

CM5IO bill of materials (BOM)

62 components, 35 distinct parts.

QtyPartRefs
2
TPD4EUSB30
U1, U2
1
MagJack-A70-112-331N126
U3
1
74LVC1G07SE-7
U5
1
AP22653W6
U6
1
ASEK-32.768KHZ-L-R-T
U7
1
AP3441SHE-7B
U8
1
RT9742SNGV
U12
1
RT9742GGJ5
U18
1
Conn_02x07_Odd_Even
J2
1
Bus_M.2_Socket_M
J4
2
Conn_01x22_Female
J5, J16
2
THD-02-R
J6, J9
1
Micro_SD_Card_Det
J7
1
THD-20-R
J8
2
690-019-298-412
J10, J22
1
USB_C_Receptacle_USB2.0
J11
1
USB3_A
J12
1
JST_SHBM04B-SRSS-TB
J14
1
Battery_Cell
BT1
1
ComputeModule5-CM5
Module1
Show 15 more
QtyPartRefs
1
Right angle Tact button
SW1
1
LED Red
D1
2
LED Green
D2, D3
1
2.2uH
L1
7
100n
C1, C9, C10, C12, C13, C18, C19
10
10u
C2, C4, C5, C6, C7, C8, C14, C15 +2
1
100uF
C3
1
4.7nF
C11
3
1k
R1, R10, R17
2
470R
R2, R3
1
0R
R5
5
2.2K 1%
R6, R7, R8, R9, R16
1
15K 1%
R12
1
100K 1%
R14
1
10K 1%
R15

CM5IO design files

The KiCad project lives in the rassweiler/pi-networked-counter repository on GitHub; these links point at the commit this page was built from.

CM5IO: common questions

What microcontroller does the CM5IO use?

The CM5IO is built around the ComputeModule5-CM5, from the Raspberry Pi family.

How big is the CM5IO PCB?

The CM5IO measures 160 × 90 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the CM5IO?

62 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the CM5IO design files?

From the rassweiler/pi-networked-counter repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the CM5IO design in my own project?

Yes, under the terms of its GPL-3.0 license, which rassweiler chose for the repository.

Can I test firmware for the CM5IO 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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