HardLabs

Microbot

Rishabh416·microbot·microbot PCB V2/MicroBot.kicad_pcb

Microbot PCB layout, top view — open source STM32 board by Rishabh416

About the Microbot PCB

Microbot is an open source STM32 PCB design by Rishabh416, published on GitHub. It is a 2-layer board measuring 42.3 × 42.3 mm, with 68 components from 41 distinct parts.

Its main chip is the STM32F103C8TX, from the STM32 family. Other key parts include the LSM6DS3, NRF24L01P, DRV8837C, MCP73831-2-MC and XC6220B331MR. By type, the board carries 22 capacitors, 14 resistors, 8 ICs, 7 connectors, 4 test points and 4 diodes.

It belongs with the robotics & motion and power & battery designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn. I made this project to learn about swarm robotics and the potential applicatio

My first fully custom project inspired by the microbots from the movie Big Hero 6. My goal is to get into swarm robotics and I believe this is a HUGE leap in that direction, but a good moment to learn. I made this project to learn about swarm robotics and the potential application in environmental applications such as in deserts.

Microbot, from the project README
From the project README

Main components on the Microbot

STM32F103C8TXLSM6DS3NRF24L01PDRV8837CMCP73831-2-MCXC6220B331MR

Microbot bill of materials (BOM)

68 components, 41 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F103C8TX
STM32F103C8Tx
U1
1
LSM6DS3
U2
1
NRF24L01P
nRF24L01P
U3
3
DRV8837C
U4, U5, U6
1
MCP73831-2-MC
U7
1
XC6220B331MR
U8
3
Motor_DC
M1, M2, M3
1
SI2371EDS
Si2371EDS
Q1
1
16MHZ
16MHz
X1
1
USB_C_RECEPTACLE_POWERONLY_6P
USB_C_Receptacle_PowerOnly_6P
J1
1
CONN_01X02
Conn_01x02
J2
4
CONN_01X03_PIN
Conn_01x03_Pin
J3, J4, J5, J6
1
CONN_01X04_PIN
Conn_01x04_Pin
J7
1
2450AT18A0100001E
E1
2
MalePogo
TP1, TP3
2
FemalePogo
TP2, TP4
1
Green
D1
2
1N5819WS
D2, D3
1
Red
D4
1
2.7N
2.7n
L1
Show 21 more
QtyPartRefs
1
3.9N
3.9n
L2
1
8.2N
8.2n
L3
8
100N
100n
C1, C2, C3, C4, C5, C6, C7, C8
1
10N
10n
C9
2
1n
C10, C19
1
33N
33n
C11
2
22P
22p
C12, C13
1
1.5P
1.5p
C14
1
1p
C15
1
2.2N
2.2n
C16
1
4.7P
4.7p
C17
2
10U
10u
C18, C21
1
4.7U
4.7u
C20
1
1u
C22
6
10K
10k
R1, R2, R5, R6, R10, R11
1
22K
22k
R3
2
1M
R4, R9
2
5.1K
5.1k
R7, R8
1
75K
75k
R12
1
100K
100k
R13
1
150
R14

Microbot design files

The KiCad project lives in the Rishabh416/microbot repository on GitHub; these links point at the commit this page was built from.

Microbot: common questions

What microcontroller does the Microbot use?

The Microbot is built around the STM32F103C8TX, from the STM32 family.

How big is the Microbot PCB?

The Microbot measures 42.3 × 42.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Microbot?

68 components, from 41 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 Microbot design files?

From the Rishabh416/microbot 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 Microbot design in my own project?

The repository has no license, so all rights stay with Rishabh416. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Microbot without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Earlier revisions in the repo: microbot

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