CAN bus Wi-fi Hacking / Dev Board

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[Voltlog] has been hacking away on the CAN bus console of his VW Golfing for rather a while now. Possibly, for his initiatives, the to be had CAN bus interface forums are missing in many ways, both technically and/or value. So [Voltlog] designed his personal wi-fi CAN bus hacking and building module known as the ESP32 CanLite (see the video beneath the spoil). The board used to be adapted to satisfy the desires of his venture and he claims it’s not a common instrument. However we predict many people will in finding the options he decided on for this module might be a just right have compatibility for his or her initiatives as smartly.

In his creation of the design, he walks in the course of the quite a lot of design choices he confronted. Because the venture title suggests, he’s the use of the ESP32 as the principle controller because of it’s wi-fi radios and integrated CAN controller. The board is powered from the auto’s +12V energy, so it makes use of a large enter vary ( 4 to 40 V ) switching regulator. One characteristic he added used to be the power to modify car equipment the use of the ST VN750PC, a nifty high-side driving force in an SO-8 bundle with built-in protection provisions.

The venture is printed as open supply and the information may also be pulled from his GitHub repository. We spotted the debug connector categorised VOLTLINK at the schematic, and located (*2*)his description of this tradition interface attention-grabbing. Mainly, he used to be now not glad with the standard and function of the quite a lot of USB-to-serial adapters available on the market and determined to make his personal. May just this be a commonplace theme amongst [Voltlog]’s initiatives?

A phrase of caution if you wish to construct the ESP32 CanLite your self. Whilst [Voltlog] had deliberately decided on portions that had been commonplace and simple to buy when the venture started, a number of key chips have since turn into just about not possible to procure at the present time because of the worldwide portions scarcity factor (it’s even (*3*)out of inventory on his Tindie web page).

If you wish to dig deeper into CAN bus hacking, take a look at this communicate that we wrote about again in 2021. Do you might have any favourite CAN bus building forums and/or equipment? Tell us within the feedback beneath.

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