![]() has a list of potential applications for the board, many of which take advantage of the ESP’s wireless capabilities. Software-wise it’s a blank piece of paper for the user to roll their own application, but since the ESP32 is supported by the Arduino ecosystem, there are libraries that make talking CAN as easy as it can be. It’s a small PCB with an onboard CAN interface from an ESP32-S3 and a car-friendly power supply circuit, and perhaps most importantly, it has an auto-shutdown feature to prevent battery drain. This is what has done, with his RejsaCAN microcontroller board. Some people go no further than commercial plug-in analysers, while others build their own CAN devices. Since modern cars use the CAN bus for so many of their functions, it’s unsurprising that it’s a frequent object of interest for those in our community. ![]()
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