12 layers

AnalogLineFollower

Source files for both electrical and mechanical designs for an Analog Line Following robot.

Copper layers: 12
Thickness: 1.6 mm
Parts: 22
Nets: 13
Pads: 57
Tracks, vias: 0, 0
Routed: Not yet
KiCad: KiCad 10.0 (file 20260206)
Created: 8 Feb 2026
Updated: 31 Aug 2026

Overview

AnalogLineFollower is an open-source printed circuit board by drvnprgrmr, from the drvnprgrmr/AnalogLineFollower repository on GitHub. It is a 12-layer board with 22 parts on 13 nets.

It is built around the LM393 and IRLB8721PBF. Its parts include 6 resistors, 3 capacitors, 3 connectors, 2 diodes and 2 transistors.

Main components

Topics

analog-design cad ecad hardware kicad line-follower mcad

Project files

Show this board on your page

https://pcbkit.io/boards/drvnprgrmr/AnalogLineFollower

The board's own page, for a message or a post.

Source

Repository: drvnprgrmr/AnalogLineFollower
Board file: ecad/mainboard/mainboard.kicad_pcb
Commit: cf86bd1
Licence: Not stated

Parts

Qty	Value	Footprint	References
3	0.1uF	Capacitor_THT:C_Radial_D4.0mm_H7.0mm_P1.50mm	C1, C2, C3
2	10k	Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical	RV1, RV2
2	10k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R3, R6
2	1N4001	Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal	D1, D2
2	1k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R2, R5
2	2.2k	Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal	R1, R4
2	Conn_01x03_Pin	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal	J1, J3
2	IRLB8721PBF	Package_TO_SOT_THT:TO-220-3_Vertical	Q1, Q2
1	3.3V Regulator	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J2
1	Battery	TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x02_P3.50mm_Vertical	BT1
1	LM393	Package_DIP:DIP-8_W7.62mm_Socket	U1
1	Left N20 Motor	Connector_JST:JST_ZH_B2B-ZR_1x02_P1.50mm_Vertical	M1
1	Right N20 Motor	Connector_JST:JST_ZH_B2B-ZR_1x02_P1.50mm_Vertical	M2

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Questions

What parts does the AnalogLineFollower use?

22 parts, built around the LM393 and IRLB8721PBF. 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 AnalogLineFollower KiCad files?

From the drvnprgrmr/AnalogLineFollower repository on GitHub, at the commit this page was made from: the board is ecad/mainboard/mainboard.kicad_pcb and its schematic ecad/mainboard/mainboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the AnalogLineFollower design in my own project?

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