HardLabs

PCB

bsce26023·STM32-LFR·Main Board/PCB.kicad_pcb

PCB layout, top view — open source board by bsce26023

About the PCB

PCB is an open source PCB design by bsce26023, published on GitHub. It is a 2-layer board measuring 110 × 100 mm, with 18 components from 10 distinct parts.

By type, the board carries 4 connectors and 1 switch.

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

From the project

I designed a LFR from scratch including the PCBs for main board and a custom sensor array.

I designed a LFR from scratch including the PCBs for main board and a custom sensor array.

I've decided the components based on affordability, speed, availability and ease of use. Starting with the micro controller I've selected STM 32 BlackPill and for motors I've selected 3000rpm 6v N20 motors with encoders for fast speed to drive these motors I've chosen TB6612FNG motor driver because it has low voltage drop and also it is way lighter than L298N. I've decided to use a 2S Li-Po battery which is about 7.4v which can power the motors with ease and to power STM32 I'd use a step down buck…

PCB, from the project README
From the project README

PCB bill of materials (BOM)

18 components, 10 distinct parts.

QtyPartRefs
1
Conn_01x16
J1
1
Charger_Out
J2
2
Conn_01x20
J3, J4
1
Conn_01x02
Battery1
4
Conn_01x02
Buck_IN+1, Buck_IN-1, Buck_OUT+1, Buck_OUT-1
1
Conn_01x01
GND1
4
Conn_01x06
Motor1, Motor2, Motor3, Motor4
1
SW_SPDT
SW1
2
Conn_01x08
TB6612FNG_L1, TB6612FNG_R1
1
Conn_01x01
VIN1

PCB design files

The KiCad project lives in the bsce26023/STM32-LFR repository on GitHub; these links point at the commit this page was built from.

PCB: common questions

How big is the PCB?

The PCB measures 110 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PCB?

18 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the PCB design files?

From the bsce26023/STM32-LFR repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the PCB design in my own project?

The repository has no license, so all rights stay with bsce26023. Use it as a reference, and ask the author before reusing the design.

More boards in STM32-LFR

Similar boards