HardLabs

Audio-Tracking-Car

jke48222·Audio-Tracking-Car·Wiring_Diagrams/UI.kicad_sch

Audio-Tracking-Car

About the Audio-Tracking-Car PCB

Audio-Tracking-Car is an open source Raspberry Pi PCB design by jke48222, published on GitHub under the MIT license. It is a board, with 16 components from 11 distinct parts.

Its main chip is the Raspberry_Pi_4, from the Raspberry Pi family. Other key parts include the SN754410NE. By type, the board carries 5 diodes, 3 connectors, 3 switches, 2 modules, 2 resistors and 1 IC.

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

From the project

A Raspberry Pi car that localizes and tracks sound using dual microphones, analog processing, and Python-based motor control.

A Raspberry Pi–powered car that localizes sound with a dual‑channel analog front end and tracks toward the desired source. The system reads level‑decoded ADC signals from two band‑pass filtered microphone chains, computes left/right dominance, and drives two DC motors via an H‑bridge. Modes are selected with a 4‑bit DIP switch (audio tracking vs. figure‑drawing demos).

Main components on the Audio-Tracking-Car

SN754410NE

Audio-Tracking-Car bill of materials (BOM)

16 components, 11 distinct parts.

QtyPartRefs
1
SN754410NE
U1
1
Right_DC_Motor
M2
1
Left_DC_Motor
M3
1
Raspberry_Pi_4
J1
1
DC Power Supply
J2
1
GPIO Extension Board
J3
1
DIP SWITCH
SW1
2
Optical Encoder
SW2, SW3
5
LED
D1, D2, D3, D4, D5
1
1kΩ
R2
1
3KΩ
R4

Audio-Tracking-Car design files

The KiCad project lives in the jke48222/Audio-Tracking-Car repository on GitHub; these links point at the commit this page was built from.

Audio-Tracking-Car: common questions

What microcontroller does the Audio-Tracking-Car use?

The Audio-Tracking-Car is built around the Raspberry_Pi_4, from the Raspberry Pi family.

How many components are on the Audio-Tracking-Car?

16 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Audio-Tracking-Car design files?

From the jke48222/Audio-Tracking-Car repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Audio-Tracking-Car design in my own project?

Yes, under the terms of its MIT license, which jke48222 chose for the repository.

Can I test firmware for the Audio-Tracking-Car without the hardware?

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

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