HardLabs

Line follower

thebiguno·microcontroller-projects·projects/line_follower/kicad/line_follower.kicad_pcb

Line follower PCB layout, top view — open source AVR/Arduino board by thebiguno
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About the Line follower PCB

Line follower is an open source AVR/Arduino PCB design by thebiguno, published on GitHub. It is a 2-layer board measuring 48.3 × 48.3 mm, with 38 components from 18 distinct parts.

Its main chip is the ARDUINO_PRO_MICRO, from the AVR/Arduino family. Other key parts include the BOOST and L293D. By type, the board carries 11 resistors, 6 connectors, 6 diodes, 5 transistors, 3 ICs and 1 switch.

From the project

A home for a bunch of microcontroller projects which don't warrant their own repos.

microcontroller-projects ========================

A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.

Some major projects include: Stubby the Hexapod (http://stubby.digitalcave.ca/stubby/) (Now extracted into its own repo at https://github.com/thebiguno/stubby) DrumMaster (http://drummaster.digitalcave.ca/drummaster/) * Chiindii (http://chiindii.digitalcave.ca/chiindii/)

Main components on the Line follower

BOOSTARDUINO_PRO_MICROL293D

Line follower bill of materials (BOM)

38 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
BOOST
U1
1
ARDUINO_PRO_MICRO
U2
1
L293D
U3
5
PHOTO_TRANSISTOR
Q1, Q2, Q3, Q4, Q5
1
CONN_10X2
I2C
P1
1
RST
P2
1
HC-SR04
P3
1
MOTOR_L
P4
1
MOTOR_R
P5
1
BATT
P6
4
MOUNTING_HOLE
MP1, MP2, MP3, MP4
1
GRAPHIC
MP6
1
BUTTON
SW1
5
IR_LED
D1, D2, D3, D4, D5
1
HEARTBEAT
D6
1
CAP
C1
6
220
R1, R2, R3, R4, R5, R11
5
10k
R6, R7, R8, R9, R10

Line follower design files

The KiCad project lives in the thebiguno/microcontroller-projects repository on GitHub; these links point at the commit this page was built from.

Line follower: common questions

What microcontroller does the Line follower use?

The Line follower is built around the ARDUINO_PRO_MICRO, from the AVR/Arduino family.

How big is the Line follower PCB?

The Line follower measures 48.3 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Line follower?

38 components, from 18 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 Line follower design files?

From the thebiguno/microcontroller-projects repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Line follower design in my own project?

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

Can I test firmware for the Line follower without the hardware?

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

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