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Simple brushed

ill-ev-concept·simple-brushed·brushed_ethanV1/brushed_ethab_redo.kicad_pcb

Simple brushed PCB layout, top view — open source STM32 board by ill-ev-concept
Simulate this board

About the Simple brushed PCB

Simple brushed is an open source STM32 PCB design by ill-ev-concept, published on GitHub. It is a 2-layer board measuring 97 × 72.8 mm, with 46 components from 29 distinct parts.

Its main chip is the STM32F103C8TX, from the STM32 family. Other key parts include the TC1108-3.3VDBTR, ISO1050DUB, LMR51625YDDCR, DGD0211CWT-7 and STPS30H100DJF. By type, the board carries 19 capacitors, 9 resistors, 6 ICs, 3 connectors, 2 diodes and 1 transistor.

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

From the project

First implementation of simple brushed motor controller

This is the simple version of the brushed motor controller for EV3, my current documentation can be found here

Additionally, the code can be found here

Currently works on the bench with minor modifications and problems:

- Footprint for mosfet is reversed, so bodge wire was used to swap trace for gate pin - Buck converter possibly having some issues, previously worked in testing, but now doesnt function so it is being bypassed - Gate driver IC seems to pull down the STMs PWM signal to 2 volts peak, which is just enough for it to detect, but 3.3v is prefered

Main components on the Simple brushed

TC1108-3.3VDBTRSTM32F103C8TXISO1050DUBLMR51625YDDCRDGD0211CWT-7STPS30H100DJF

Simple brushed bill of materials (BOM)

46 components, 29 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TC1108-3.3VDBTR
IC1
1
STM32F103C8TX
STM32F103C8Tx
U1
1
ISO1050DUB
U2
1
LMR51625YDDCR
U3
1
DGD0211CWT-7
U4
1
STPS30H100DJF
STPS30H100DJF-TR
U5
1
NTBLS4D0N15MC
Q2
1
RJ45
J1
1
CONN_02X05_ODD_EVEN
Conn_02x05_Odd_Even
J2
1
CONN_01X03
Conn_01x03
J3
4
WP-BUFU
MP1, MP2, MP3, MP4
1
P120PK-Y25BR10K
VR1
2
LED
D1, D2
1
22UH
22uH
L1
8
.1uF
C1, C2, C4, C5, C7, C17, C18, C19
2
1UF
1uF
C3, C6
2
C
C8, C9
3
1.0UF
1.0uF
C10, C11, C12
1
100NF
100nF
C13
1
100NF
100nF
C14
Show 9 more
QtyPartRefs
2
10.0UF
10.0uF
C15, C16
1
120
R1
1
100K
100k
R3
1
7.15K
7.15k
R4
1
R_US
R9
1
10K
10k
R10
2
300
R14, R15
1
100K
100k
R16
1
3k
R17

Simple brushed design files

The KiCad project lives in the ill-ev-concept/simple-brushed repository on GitHub; these links point at the commit this page was built from.

Simple brushed: common questions

What microcontroller does the Simple brushed use?

The Simple brushed is built around the STM32F103C8TX, from the STM32 family.

How big is the Simple brushed PCB?

The Simple brushed measures 97 × 72.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Simple brushed?

46 components, from 29 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 Simple brushed design files?

From the ill-ev-concept/simple-brushed 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 Simple brushed design in my own project?

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

Can I test firmware for the Simple brushed 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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