HardLabs

MotorBoard MK1

ISSUIUC·ISS-PCB·boards/Motor-MK1/Motor-MK1.kicad_pcb

MotorBoard MK1 PCB layout, top view — open source ESP32 board by ISSUIUC

About the MotorBoard MK1 PCB

MotorBoard MK1 is an open source ESP32 PCB design by ISSUIUC, published on GitHub. It is a 4-layer board measuring 65 × 70 mm, with 59 components from 32 distinct parts.

Its main chip is the ESP32-S3-MINI-1U, from the ESP32 family. Other key parts include the TMC2660C, TLE42744, ECMF02-2AMX6 and TPS2121. By type, the board carries 24 capacitors, 19 resistors, 6 ICs, 5 connectors, 3 diodes and 2 switches.

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

From the project

Building custom flight computers

Starting off the year as just a concept, the Motor Board has taken shape as an impressive new piece of the MIDAS ecosystem. Unofficially known as “Spinny Antenna Motor” (SAM) Board, the project serves as a method of control for the team’s SAM Turret antenna tracker, which aims to automatically track the rocket’s position during flight and maintain optimal antenna orientation to get the best possible range for MIDAS telemetry. In addition to cementing MIDAS’s role as an important part of our team’s ground operations, the Motor Board has served as a testbed for WiFi as a new way of…

MotorBoard MK1, from the project README
From the project README

Main components on the MotorBoard MK1

ESP32-S3-MINI-1UTMC2660CTLE42744ECMF02-2AMX6TPS2121

MotorBoard MK1 bill of materials (BOM)

59 components, 32 distinct parts.

QtyPartRefs
1
ESP32-S3-MINI-1U
U1
2
TMC2660C
U2, U3
1
TLE42744
U4
1
ECMF02-2AMX6
U102
1
TPS2121
U203
2
Conn_01x04
J1, J2
1
Conn_02x12_Counter_Clockwise
J3
1
Conn_01x02
J4
1
USB_C_Receptacle_USB2.0_16P
J101
1
SW_Push
SW101
1
SW_Push
SW102
2
LED
D1, D2
1
RED LED
D201
2
470nF
C1, C6
1
1200uF
C2
2
100uF
C3, C4
5
10uF
C5, C11, C13, C14, C16
8
100nF
C7, C9, C10, C12, C18, C102, C103, C104
2
220nF
C8, C15
2
22uF
C17, C101
Show 12 more
QtyPartRefs
2
1uF
C105, C206
4
10
R1, R3, R5, R6
4
0.075
R2, R4, R7, R8
2
470
R9, R10
1
23.7k
R11
1
5k
R12
1
30k
R13
1
1k
R14
1
100k
R101
2
5.1k
R102, R103
1
470 ohms
R201
1
20k
R214

MotorBoard MK1 design files

The KiCad project lives in the ISSUIUC/ISS-PCB repository on GitHub; these links point at the commit this page was built from.

MotorBoard MK1: common questions

What microcontroller does the MotorBoard MK1 use?

The MotorBoard MK1 is built around the ESP32-S3-MINI-1U, from the ESP32 family.

How big is the MotorBoard MK1 PCB?

The MotorBoard MK1 measures 65 × 70 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the MotorBoard MK1?

59 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the MotorBoard MK1 design files?

From the ISSUIUC/ISS-PCB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MotorBoard MK1 design in my own project?

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

Can I test firmware for the MotorBoard MK1 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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