HardLabs

CM5IO top

Distaff·RPi_CM_Drone_Board·pcb_IARC_HAT/CM5IO_top.kicad_pcb

CM5IO top PCB layout, top view — open source ESP32 board by Distaff

About the CM5IO top PCB

CM5IO top is an open source ESP32 PCB design by Distaff, published on GitHub under the MIT license. It is a 2-layer board measuring 50.3 × 56.3 mm, with 48 components from 31 distinct parts.

Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the 114993390 and AP7361C-33E. By type, the board carries 16 resistors, 8 capacitors, 7 connectors, 5 diodes, 4 ICs and 4 transistors.

It belongs with the robotics & motion and dev boards & breakouts designs in this gallery.

From the project

Source of the CM5-based drone controller used for onboard image processing, communication, and high-level automation. Originally created for IARC2026 (drone engineering competition), used in other competitions as well.

IARC HAT Provides programmable ESP32-S3, with SX-1262 for LoRa connectivity, killswitch that disables FC, and ESC/FC connectors.

3D render: | Front | Back | | ------------------------------------------------------------ | ------------------------------------------------------------ | | | |

3D render: | Front | Back | | ------------------------------------------------------------ | ------------------------------------------------------------ | | | |

CM5IO top, from the project README
From the project README

Main components on the CM5IO top

ESP32-S3-WROOM-1114993390AP7361C-33E

CM5IO top bill of materials (BOM)

48 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1
U1
1
114993390
Wio-SX1262
U2
2
AP7361C-33E
U3, U4
2
AO3401A
Q1, Q4
2
Q_NPN_BEC
Q2, Q3
1
USB_C_Receptacle_USB2.0
J1
1
J_PSU_EN
J3
1
J_ESP_DBG_UART
J4
1
503398-1892
J_FC_UART
J7
1
THD-20-R
J8
1
J_DShot600_ESC
J9
1
J_DShot600_FC
J10
1
10164227-1001A1RLF
ComputeModule5-CM5
Module1
1
SW_RESET
SW1
1
SW_BOOT
SW2
1
FORCE_PWR
SW3
1
SML-A12U8TT86Q
MBR1020VL
D1
1
SML-A12M8TT86N
MBR1020VL
D2
1
SML-A12U8TT86Q
LED Red
D3
1
LED Green
D4
Show 11 more
QtyPartRefs
1
LED Red
D5
1
470nF
C1
3
10U
470nF
C2, C7, C8
1
100UF
4.7uF 35v
C3
1
4.7uF 35v
C4
1
10U
4.7uF 10v
C5
1
4.7uF 10v
C6
10
1K
R1, R3, R4, R5, R6, R9, R10, R12 +2
1
2.2K 1%
R2
2
5.1K 1%
R7, R8
3
10K
R11, R14, R16

CM5IO top design files

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

CM5IO top: common questions

What microcontroller does the CM5IO top use?

The CM5IO top is built around the ESP32-S3-WROOM-1, from the ESP32 family.

How big is the CM5IO top PCB?

The CM5IO top measures 50.3 × 56.3 mm, has 2 copper layers and is 1.06016 mm thick.

How many components are on the CM5IO top?

48 components, from 31 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the CM5IO top design files?

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

Can I use the CM5IO top design in my own project?

Yes, under the terms of its MIT license, which Distaff chose for the repository.

Can I test firmware for the CM5IO top without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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