2 layers48.3 × 48.3 mm Line follower, the printed circuit board in 3D

Line follower

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

Size: 48.3 × 48.3 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 39
Nets: 33
Pads: 112
Tracks, vias: 259, 55
Pours: 2
Routed: Yes
KiCad: KiCad 4
Created: 20 Nov 2014
Updated: 6 Jul 2024

Overview

Line follower is an open-source printed circuit board by thebiguno, from the thebiguno/microcontroller-projects repository on GitHub. It is a 2-layer board of 48.3 × 48.3 mm with 39 parts on 33 nets, routed with 259 tracks and 55 vias.

It is built around the L293D and HC-SR04. Its parts include 11 resistors, 6 diodes, 6 connectors, 5 transistors and 3 ICs. It belongs with the AVR (ATmega, ATtiny) boards of this library.

Main components

README

README.md

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/)

Some of the AVR libraries included here are:

serial communications
TWI (I2C), with support for master read / master write / slave read / slave write, plus callback functions for asyncronous communications
reading data from a PS2 controller
timer functions
and much more

Parts

Qty	Value	Footprint	References
6	220	Discret:R1	R1, R2, R3, R4, R5, R11
5	10k	Discret:R1	R6, R7, R8, R9, R10
5	IR_LED	LEDs:LED-5MM	D1, D2, D3, D4, D5
5	PHOTO_TRANSISTOR	Pin_Headers:Pin_Header_Angled_2x01	Q1, Q2, Q3, Q4, Q5
4	MOUNTING_HOLE	DigitalCave:MOUNTING_HOLE_#6	MP1, MP2, MP3, MP4
1	ARDUINO_PRO_MICRO	Housings_DIP:DIP-24_W15.24mm_LongPads	U2
1	BATT	Pin_Headers:Pin_Header_Straight_1x02	P6
1	BOOST	Pin_Headers:Pin_Header_Straight_1x03	U1
1	BUTTON	Buttons_Switches_ThroughHole:SW_PUSH_SMALL	SW1
1	CAP	Capacitors_THT:C_Radial_D8_L13_P3.8	C1
1	GRAPHIC	DigitalCave:DIGITALCAVE_URL	MP6
1	GRAPHIC	DigitalCave:DIGITALCAVE_LOGO	MP5
1	HC-SR04	Pin_Headers:Pin_Header_Straight_1x04	P3
1	HEARTBEAT	LEDs:LED-5MM	D6
1	I2C	Pin_Headers:Pin_Header_Straight_1x04	P1
1	L293D	Housings_DIP:DIP-16_W7.62mm	U3
1	MOTOR_L	Pin_Headers:Pin_Header_Straight_1x02	P4
1	MOTOR_R	Pin_Headers:Pin_Header_Straight_1x02	P5
1	RST	Pin_Headers:Pin_Header_Straight_1x01	P2

Questions

How big is the Line follower PCB?

It measures 48.3 × 48.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Line follower use?

39 parts, built around the L293D and HC-SR04. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Line follower KiCad files?

From the thebiguno/microcontroller-projects repository on GitHub, at the commit this page was made from: the board is projects/line_follower/kicad/line_follower.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

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

Its repository states no licence, so its author keeps all rights: ask thebiguno before reusing the design.

Category and platform

AVR (ATmega, ATtiny)

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/thebiguno-microcontroller-projects-line-follower" title="Line follower in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/thebiguno-microcontroller-projects-line-follower.jpg" alt="Line follower" width="1200" height="900">

A picture that opens the board, for a README

[![Line follower](https://pcbkit.io/embed/boards/thebiguno-microcontroller-projects-line-follower.jpg?size=s)](https://pcbkit.io/boards/thebiguno-microcontroller-projects-line-follower)

Source

Repository: thebiguno/microcontroller-projects
Board file: projects/line_follower/kicad/line_follower.kicad_pcb
Commit: 18392f6
Licence: Not stated

Similar boards

2 layers120.7 × 184.1 mm
BeachRover circuit
wizardofrobots/roverCode
Jetson Nano powered Arduino Rover
11 parts10
2 layers85.7 × 137.2 mm
Auto ciaa
ArrecheCristian/Vehiculo-a-control-remoto
Integración de Hardware y Software. Diseño y desarrollo de PCB y sus componentes. Manejo y medición de sensores.
29 parts1
2 layers82 × 100 mm
Robo car
ChefsSlaad/PCBs_and_Micropython
storing custom pcbs and micropython code for home projects
36 parts
2 layers105.7 × 107.5 mm
NomobotSK
edantoni96/NomobotSK
NomobotSK is a educational robot for kids to learn programming and robotics.
74 parts
2 layers85 × 105 mm
RestroBOT
PrashilLamichhane/RestroBOT_PCB

24 parts
2 layers233.2 × 146.8 mm
Slave basic 1
YasiruBasura/Can-Crusher
An automated Can Crushing Machine consisting an user reward system with the aim of reducing environment pollution by disposing Cans(juice, beer, ..) in an environmentally friendly method.
33 parts
2 layers80 × 60 mm
EnvMonitor
kennySzhucheng/EnvMonitor
🌡️ 智能环境监测站 | STM32F103C8T6 + FreeRTOS + ESP8266 | 温湿度/光照/测距/OLED菜单/ThingSpeak上云 | 从裸机到RTOS到KiCad PCB全流程
27 parts10
2 layers110 × 80 mm
Noko 2
NikolaiRadke/Noko_2
The do-it-yourself Arduino-based Noko monster. Version 2 with PCB and 3D printed casing.
51 parts3Apache-2.0