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Freematics

44 orders since Nov 26, 2017

2 Reviews

St Ives, NSW, Australia

Ships from Australia.

Freematics Maker Store

ESP32-C3 RISC-V in Arduino UNO form factor

ESP32-C3 RISC-V in Arduino UNO form factor

Freematics

$25.00

Freematics OBD-II UART Adapter V2.1

Freematics OBD-II UART Adapter V2.1

Freematics

$55.00

Freematics ESP32 Arduino OBD Kit

Freematics ESP32 Arduino OBD Kit

Freematics

$75.00

Freematics MPPT 400/55 Solar Charge Controller

Freematics MPPT 400/55 Solar Charge Controller

Freematics

$69.00

About

Freematics was founded in 2013 by Stanley Huang, which stands for Free Telematics. The goal of Freematics is to bring freedom by making it easier to utilize open-source hardware in telematics/telemetry projects.

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Reviews

Review Breakdown

5
0 4
0 3
1 2
0 1
1

Average Ratings

Product: (2.00)

Documentation: (2.00)

Shipping: (2.00)

Communication: (2.50)

Michael | Nov. 26, 2025

I wouldn't waste your money on it doesn't so anything specia

For Freematics ONE+ - ESP32+OBD+GNSS+LTE

Waste of time the seller sucks won't response and tindie is almost useless on helping om anything sort of problem

Mehdi | May 24, 2024

Good but not for CAN sniffing

For Freematics ONE+ - ESP32+OBD+GNSS+LTE

I think this is a fantastic product if you only care about basic OBD2 information and tracking vehicles.

The product page states "CAN bus data sniffing" but in my experience the chipset is an ELM327 variant that is not able to cope with more than a few messages before it gets overwhelmed - appears to work OK if you filter to a single CAN ID with the masks but disabling filtering is a no-go.