HardLabs

Driving module

schuhumi·autocut·Electronics/Driving Module/driving_module/driving_module.kicad_pcb

Driving module layout, top view — open source STM32 board by schuhumi

About the Driving module

Driving module is an open source STM32 PCB design by schuhumi, published on GitHub under the GPL-3.0 license. It is a board measuring 99.1 × 101.6 mm, with 69 components from 24 distinct parts.

Its main chip is the CN7@STM32NUCLEO-F401RE, from the STM32 family. Other key parts include the MCP23017_SP and L298HN. By type, the board carries 38 resistors, 11 connectors, 11 capacitors, 5 diodes, 3 ICs and 1 transistor.

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

From the project

autoCut is a heavy duty 4x4 automatic lawn mower robot

autoCut is an automatic lawn mower robot. It features: - Four weel drive with kink steering - Motorized mowing height leveling - Two 85 watt mowing motors, each equipped with two very sharp blades, able to snap back on hard obstacles - On the fly interchangeable LiPo-battery with voltage monitoring - Wifi network connection for web interface which includes gamepad remote control - Raspberry Pi as its main computer and head of the microcontroller i2c-network

Main components on the Driving module

MCP23017_SPL298HN

Driving module bill of materials (BOM)

69 components, 24 distinct parts.

QtyPartRefs
1
MCP23017_SP
U1
2
L298HN
U2, U3
1
Q_Photo_NPN
Q1
1
Conn_Data_Bus
J1
1
Conn_Revolution_Sensors_M1_M2
J2
1
Conn_Revolution_Sensors_M3_M4
J3
1
Conn_01x03
J4
1
CN7@STM32NUCLEO-F401RE
J5
1
Motor1
J7
1
Motor2
J8
1
CN10@NUCLEO-F401RE
J9
1
Motor3
J10
1
Motor4
J11
1
Conn_Angle_Pot
J12
1
LED
D1
4
D_Bridge_+-AA
D2, D3, D4, D5
1
470u
C1
1
1000u
C2
9
100n
C3, C4, C5, C6, C7, C8, C9, C10 +1
4
100R
R1, R8, R37, R38
Show 4 more
QtyPartRefs
17
10k
R2, R3, R5, R6, R7, R10, R11, R14 +9
1
330R
R4
12
1k
R9, R19, R20, R22, R29, R30, R31, R32 +4
4
3k3
R12, R13, R18, R23

Driving module design files

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

Driving module: common questions

What microcontroller does the Driving module use?

The Driving module is built around the CN7@STM32NUCLEO-F401RE, from the STM32 family.

How big is the Driving module?

The Driving module measures 99.1 × 101.6 mm and is 1.6 mm thick.

How many components are on the Driving module?

69 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Driving module design files?

From the schuhumi/autocut repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Driving module design in my own project?

Yes, under the terms of its GPL-3.0 license, which schuhumi chose for the repository.

Can I test firmware for the Driving module 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.

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