A BLACK BOX FOR A MOTORCYCLE

[Lukusz] has a new motorcycle – a Yamaha XJ6SA – as well as since it hasn’t been in an mishap yet, he believed building a black box to record telemetry from the last 30 minutes of riding would be a great idea. While the job isn’t total yet, he’s already reading data coming directly from the engine manage unit.

After figuring out most of the pinout for his bike’s ECU connector, [Lukasz] discovered one cable that didn’t really do anything. This was his ECU’s K line, a serial output that is able to relay the specify of the gauges to outside devices. The electronic spec of the K line is a bit weird, though, however luckily after discovering a chip to convert the signal into something a logic analyzer can understand.

With a logic analyzer linked to the K line – as well as setting it to get on at 16064 baud – [Lukasz] was able to get a whole great deal of data directly from his bike. In the future he plans to pass data such as speed, sign lights, RPMs, as well as the present gear to a Raspberry Pi for logging.