HardLabs

CarStatTracker

ShreshtChopra1·CarStatTracker

CarStatTracker PCB layout, top view — open source ESP32 board by ShreshtChopra1

About the CarStatTracker PCB

CarStatTracker is an open source ESP32 PCB design by ShreshtChopra1, published on GitHub under the MIT license. It is a 4-layer board measuring 71.1 × 71.1 mm, with 41 components from 29 distinct parts.

Its main chip is the ESP32-S3-MINI-1-N8, from the ESP32 family. Other key parts include the ICM-42688-P, L86-M33_GPS, SN65HVD230DR, MP2315GJ-Z and TLV1117-33. By type, the board carries 12 capacitors, 9 resistors, 7 ICs, 4 connectors, 4 diodes and 2 switches.

It belongs with the rf & radio, iot & wireless and sensors designs in this gallery.

From the project

ESP32-S3 automotive telematics board — GPS + 6-axis IMU + OBD-II CAN, streamed over BLE. KiCad schematic, full BOM, and design doc.

An ESP32-S3 telematics board that measures how a car is actually driven — GPS speed, 6-axis motion, and the ECU's own speed signal off the OBD-II CAN bus — and streams it to a phone over BLE.

Status: schematic complete and costed. PCB layout not yet routed, board not yet fabricated. This repo is the electrical design — KiCad schematic, board file, and a full design document covering part selection, pin assignment, layout rules and BOM.

Main components on the CarStatTracker

ESP32-S3-MINI-1-N8ICM-42688-PL86-M33_GPSSN65HVD230DRMP2315GJ-ZTLV1117-33CP2102N-A02-GQFN28R

CarStatTracker bill of materials (BOM)

41 components, 29 distinct parts.

QtyPartRefs
1
ESP32-S3-MINI-1-N8
U1
1
ICM-42688-P
U2
1
L86-M33_GPS
U3
1
SN65HVD230DR
U4
1
MP2315GJ-Z
U5
1
TLV1117-33
U6
1
CP2102N-A02-GQFN28R
U7
1
Si2333DS
Q1
1
USB4135-GF-A
J1
1
CAR_12V_INPUT
J2
1
OBD_CAN_HEADER
J3
1
DEBUG_UART
J4
1
1.5A_15V_Polyfuse
F1
1
BOOT
SW1
1
RESET
SW2
1
SMAJ14A
D1
1
LED_RED
D3
1
LED_BLUE
D4
1
LED_GREEN
D5
1
10uH_1.5A
L1
Show 9 more
QtyPartRefs
1
22uF_25V
C1
1
47uF_10V
C2
1
10uF_10V
C3
8
100nF
C4, C6, C8, C9, C10, C11, C12, C13
1
4.7uF
C5
2
60R
R1, R3
2
10k
R2, R10
3
330R
R5, R6, R7
2
27R
R8, R9

CarStatTracker design files

The KiCad project lives in the ShreshtChopra1/CarStatTracker repository on GitHub; these links point at the commit this page was built from.

CarStatTracker: common questions

What microcontroller does the CarStatTracker use?

The CarStatTracker is built around the ESP32-S3-MINI-1-N8, from the ESP32 family.

How big is the CarStatTracker PCB?

The CarStatTracker measures 71.1 × 71.1 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the CarStatTracker?

41 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the CarStatTracker design files?

From the ShreshtChopra1/CarStatTracker repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the CarStatTracker design in my own project?

Yes, under the terms of its MIT license, which ShreshtChopra1 chose for the repository.

Can I test firmware for the CarStatTracker without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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