WiCAN Pro

Advanced OBD scanner for next-generation vehicle diagnostics and Home Assistant integration

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Aug 23, 2024

Project update 2 of 5

WiCAN Firmware Update: Improved Support for Home Assistant

by Ali Slim

First of all, I’d like to thank everyone who has supported the release of WiCAN PRO so far.

Over the past couple of months, I have been working on better integration with Home Assistant, making it easier for you to pull data from your vehicles. My goal is to make the process as seamless as possible. With the new firmware, users will be able to simply select their car model and the available parameters will be pushed to Home Assistant over MQTT. I’ve also added a Home Assistant MQTT Discovery option, so all available sensors will be automatically created in Home Assistant. Additionally, users can add their own custom PID requests for even more flexibility. Currently, only a few cars are supported, but I expect the list to grow rapidly.

It’s now easier to support more vehicle models by simply adding a JSON file, allowing users to share their vehicle profiles and contribute to the WiCAN firmware by making a pull request. This improvement is thanks to backer Jay O., who suggested and implemented the idea of having a separate JSON file for each vehicle and using GitHub Actions to merge them into a single file. This merged file will be built into the new firmware version or can be directly uploaded to WiCAN.

The new firmware update is still in beta testing and will be released soon, along with the documentation. One user, Tung, has already made a YouTube video about adding a new custom PID request:


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