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Main Board

Ensmasteel·Robot-2022-2023·Electronic/Main_Board/Main_Board.kicad_pcb

Main Board layout, top view — open source ESP32 board by Ensmasteel
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About the Main Board

Main Board is an open source ESP32 PCB design by Ensmasteel, published on GitHub. It is a 2-layer board measuring 200 × 100 mm, with 48 components from 16 distinct parts.

Its main chip is the ESP32-DEVKIT-V1, from the ESP32 family. Other key parts include the MEGA_PRO_EMBED_CH340G_{slash}_ATMEGA2560, Teensy4.1, RASPBERRYPI4_4GB, 74LVC2T45DC and Pololu_Breakout_DRV8825. By type, the board carries 11 resistors, 10 connectors, 5 ICs, 4 modules and 4 capacitors.

It belongs with the robotics & motion designs in this gallery.

From the project

Repository for ENSMASTEEL's 2022-2023 robot which will take part in the 2023 Coupe de France de Robotique

Main Board, from the project README
From the project README

Main components on the Main Board

MEGA_PRO_EMBED_CH340G_{slash}_ATMEGA2560Teensy4.1ESP32-DEVKIT-V1RASPBERRYPI4_4GB74LVC2T45DCPololu_Breakout_DRV8825

Main Board bill of materials (BOM)

48 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MEGA_PRO_EMBED_CH340G_{slash}_ATMEGA2560
U1
1
Teensy4.1
U2
1
ESP32-DEVKIT-V1
U3
1
RASPBERRYPI4_4GB
U4
1
74LVC2T45DC
U5
4
Pololu_Breakout_DRV8825
A1, A2, A3, A4
2
Conn_02x20_Counter_Clockwise
J1, J2
2
Conn_01x02_Male
J3, J4
6
Conn_01x03_Male
J5, J6, J7, J8, J9, J10
1
Conn_01x02_Male
Battery1
10
Conn_01x04_Male
Buttons1, Debug1, I²C_Screen1, LIDAR1, LeftEncoder1, RightEncoder1, Stepper1, Stepper2 +2
1
Conn_01x03_Male
LEDS1
2
Conn_01x05_Male
Motors_old1, Recalage1
4
100uF
C1, C2, C3, C4
3
100K
R1, R2, R11
8
0
R3, R4, R5, R6, R7, R8, R9, R10

Main Board design files

The KiCad project lives in the Ensmasteel/Robot-2022-2023 repository on GitHub; these links point at the commit this page was built from.

Main Board: common questions

What microcontroller does the Main Board use?

The Main Board is built around the ESP32-DEVKIT-V1, from the ESP32 family.

How big is the Main Board?

The Main Board measures 200 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Main Board?

48 components, from 16 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 Main Board design files?

From the Ensmasteel/Robot-2022-2023 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 Main Board design in my own project?

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

Can I test firmware for the Main Board 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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