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LineFollower-Kwark

konrad1s·LineFollower-Kwark·Hardware/main_pcb/schemat.kicad_pcb

LineFollower-Kwark PCB layout, top view — open source STM32 board by konrad1s
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About the LineFollower-Kwark PCB

LineFollower-Kwark is an open source STM32 PCB design by konrad1s, published on GitHub under the MIT license. It is a 4-layer board measuring 139.7 × 41.3 mm, with 70 components from 22 distinct parts.

Its main chip is the STM32F722RETx, from the STM32 family. Other key parts include the LM1117MP-3.3 and TB6612FNG. By type, the board carries 20 capacitors, 15 resistors, 12 diodes, 10 connectors, 4 ICs and 1 crystal.

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

From the project

Fast LineFollower Robot project. Build on STM32 F7 microcontroller with custom PCB. Software, Hardware and QT Application.

The LineFollower Robot is an autonomous robot designed to follow a predefined path marked by a black or white line. This project serves a quite advanced solution including hardware project, embedded software and PC QT application.

A short video demo is available on YouTube.

Example - one of the first - linefollower run:

The core functionality is implemented through an event-driven state machine. The primary signal is the LFSIGADCDATAUPDATED, which is raised whenever new ADC data is available. Currently every 5ms, however increasing this frequency can lead to better control results.

LineFollower-Kwark, from the project README
From the project README

Main components on the LineFollower-Kwark

LM1117MP-3.3STM32F722RETxTB6612FNG

LineFollower-Kwark bill of materials (BOM)

70 components, 22 distinct parts.

QtyPartRefs
1
LM1117MP-3.3
U1
1
STM32F722RETx
U2
2
TB6612FNG
U3, U4
1
QT325G-26.000MAHQ-T
Y1
1
Battery
J1
1
Conn_01x04_Socket
J2
1
SENSOR_CONN
J3
1
FTSH-105-01-F-DV-P-TR
J4
1
Conn_Encoder1
J6
2
Conn_Moto1_A
J9, J12
2
Conn_Moto1_B
J10, J13
1
Conn_Encoder2
J11
6
—
@HOLE0, @HOLE1, @HOLE2, @HOLE3, @HOLE8, @HOLE9
1
JS202011SCQN
S1
12
LED
D1, D2, D3, D4, D5, D6, D7, D8 +4
1
L
L1
4
10uF
C1, C7, C14, C16
13
100nF
C2, C4, C6, C9, C10, C11, C12, C13 +5
2
18pF
C3, C5
1
4.7uF
C8
Show 2 more
QtyPartRefs
2
10k
R1, R2
13
R
R3, R4, R5, R6, R7, R8, R9, R10 +5

LineFollower-Kwark design files

The KiCad project lives in the konrad1s/LineFollower-Kwark repository on GitHub; these links point at the commit this page was built from.

LineFollower-Kwark: common questions

What microcontroller does the LineFollower-Kwark use?

The LineFollower-Kwark is built around the STM32F722RETx, from the STM32 family.

How big is the LineFollower-Kwark PCB?

The LineFollower-Kwark measures 139.7 × 41.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the LineFollower-Kwark?

70 components, from 22 distinct parts. The full bill of materials is listed on this page.

Where can I download the LineFollower-Kwark design files?

From the konrad1s/LineFollower-Kwark repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the LineFollower-Kwark design in my own project?

Yes, under the terms of its MIT license, which konrad1s chose for the repository.

Can I test firmware for the LineFollower-Kwark 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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