VAG DASH TOOL SERIAL

A buffer takes care of storing all the different channels until they can be pushed out over the hardware CAN peripheral. The trick is to create a device ID for each desired CANSerial interface, which is done in his library using the usual Arduino setup step. The “N” in CAN stands for network, after all.

VAG DASH TOOL SERIAL

’s sweet hack creates an arbitrary number of CAN “devices” inside the Arduino code, and can treat each one of them as its own serial data channel. But what if I told you already had the board in question sending out data over CAN bus? A GPS unit and a Bluetooth-to-serial were tying up all the hardware UARTs on an AVR Arduino project.

Posted in Transportation Hacks Tagged CAN, canbus, ESP32 You haven’t tried playing with your car’s CAN bus yet? Maybe you should read this to whet your appetite. So far, has hooked it up to an LCD display, but we can see so many other useful things coming out powered by something like this. 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.