HardLabs

Micromouse

Ojasp21·Micromouse·pcb_design/Micromouse.kicad_pcb

Micromouse PCB layout, top view — open source ESP32 board by Ojasp21

About the Micromouse PCB

Micromouse is an open source ESP32 PCB design by Ojasp21, published on GitHub. It is a 2-layer board measuring 88 × 114.3 mm, with 61 components from 28 distinct parts.

Its main chip is the ESP32-DEVKITC-32D, from the ESP32 family. Other key parts include the XL4015 and LM358. By type, the board carries 18 resistors, 14 diodes, 7 ICs, 7 connectors, 5 capacitors and 2 fuses.

It belongs with the robotics & motion, iot & wireless and sensors designs in this gallery.

From the project

- Micromouse - Table of Contents - About The Project - Project Workflow - Hardware Used - Perfboard Testing - PCB Model - CAD Models - Features - Floodfill Algorithm Simulation - Software Used - Future Work - Contributors - Resources - Acknowledgements - License

- Micromouse - Table of Contents - About The Project - Project Workflow - Hardware Used - Perfboard Testing - PCB Model - CAD Models - Features - Floodfill Algorithm Simulation - Software Used - Future Work - Contributors - Resources - Acknowledgements - License

The dimensions of our full-size micromouse is 11.5 x 10 cm

- View of the PCB Routing - front and back:

Micromouse, from the project README
From the project README

Main components on the Micromouse

XL4015LM358ESP32-DEVKITC-32D

Micromouse bill of materials (BOM)

61 components, 28 distinct parts.

QtyPartRefs
1
XL4015
U1
5
LM358
U7, U8, U18, U19, U20
1
ESP32-DEVKITC-32D
U21
1
Conn_01x04_Pin
J1
2
Conn_01x06_Male
J5, J6
1
JST2
J7
2
Conn_01x06_Pin
J14, J16
1
JST1
J17
1
3A FUSE
F1
1
1A FUSE
F4
5
R_Potentiometer
RV3, RV4, RV5, RV6, RV10
2
SW_Push_DPDT
SW5, SW8
1
SS34
D2
1
LED
D8
5
D_Photo
D9, D13, D16, D34, D38
5
IR
D10, D14, D17, D35, D39
1
SS34
D12
1
1A
D36
1
47uH
L1
1
220uF
C1
Show 8 more
QtyPartRefs
3
1uF
C2, C3, C5
1
330uF
C6
1
5.1kΩ
R7
5
200Ω
R13, R16, R21, R32, R46
5
10kΩ
R14, R17, R22, R44, R47
5
100Ω
R15, R18, R23, R45, R48
1
1.65k
R50
1
1k
R51

Micromouse design files

The KiCad project lives in the Ojasp21/Micromouse repository on GitHub; these links point at the commit this page was built from.

Micromouse: common questions

What microcontroller does the Micromouse use?

The Micromouse is built around the ESP32-DEVKITC-32D, from the ESP32 family.

How big is the Micromouse PCB?

The Micromouse measures 88 × 114.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Micromouse?

61 components, from 28 distinct parts. The full bill of materials is listed on this page.

Where can I download the Micromouse design files?

From the Ojasp21/Micromouse repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Micromouse design in my own project?

The repository has no license, so all rights stay with Ojasp21. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Micromouse 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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