[ad_1]
With automobiles remaining basically CAN buses on wheels, it’s no marvel that there is a great deal of juicy data about the car’s position zipping about on these buses. The key query is usually how to get obtain to this information, each in conditions of wiring into the suitable CAN bus, and decoding the applied (proprietary) protocol. The good thing is for [Alex], decoding the Volvo VIDA protocol used with his Volvo C30 was relatively uncomplicated, enabling the creation of a tailor made gauge that shows details like increase stress and coolant temperature.
The bodily interfacing is attained by way of the car’s OBD port, which conveniently delivers obtain to the car’s two (high-velocity and very low-pace) CAN buses. Components of alternative is an M2 UTH (Beneath the Hood) board, sporting a SAM3X Cortex-M3-centered MCU, developed for long lasting automotive installations. On [Alex]’s GitHub task web site it is defined how the protocol will work, and which bytes to glance for when replicating the venture.
Rounding off the task is a spherical Liquid crystal display screen from 4D Devices that cycles by means of the position update screens. As a reward, the dashboard illumination level is also read out in true-time, so the brightness of the show is altered to fit this degree. All in all a well-rounded project, with interesting prospective clients for a additional permanent integration of the gauge into the dashboard suitable.
[ad_2]
Resource url
