Since I also own a OBDLink LX and I'm in RaceChrono Android Beta testing program, I'm going to tests both to see which is faster.įor sure the Arduino device is fun to build and code, and if you use Adafruit ItsyBitsy nRF52840 Express will be also cheaper in USA (not by a lot, but still you have the plus of building it yourself! ) This is my first project with Arduino, I'm not a coder, the core of the code is from timurrrr, so there is plenty of room for improvement. Given the limitation of BLE right now the device is limited in sending 6 IDs (still carrying a lot of useful data) with a maximum of 50 messages / second for selected IDs. If you know some hidden spot let me know, once everything is completed I may want to go for a semi permanent installation of this device. It really needs only 12v, CAN high, CAN low and ground. I'm not familiar with the network in the MX5 NC, there may be a better tie in point for the device to get CAN-bus data and power. My version of the device is using the OBD port as source of data and power. The project started as repository containing instructions and code to built a DIY device based on Arduino to read CAN-bus messages and stream to the phone via BLE. Thanks to who inspired me with his work with Raspberry Pi. The procedure I followed to reverse engineer the CAN-bus data doing direct tests on car. In the parent folder you'll find same thing for FT86 based cars. Thanks to for providing some interesting logs. Still I've to crack it, any help is welcomed. The list includes IDs from ABS and DSC, meaning brake pressure levels and steering angle are available for reading and logging.Īs you can see there is a lot of WIP still going on, I'm now focused on ID 090 that I believe is related to accelerations or rotation rates. List of CAN-Bus IDs and equations to be used in RaceChrono. You'll see this repo started as a fork from a GT86/BRZ owner (timurrrr) and has evolved from there: So, here are some resources I've put on git-hub. I know (now) there are a lot of threads about CAN-Bus, I'm still trying to catch up with work, I just want to share with you my findings hoping it could help people who want to use RaceChrono with direct CAN-Bus reading, and maybe get some help back in figuring missing bits (or bytes )
RACE CHRONO PLUS FOR ANDROID
Right now the OBDLink devices are only partially working, there is a bug in RaceChrono that has been solved on revision 7.2 beta for Android, that will be released at some point of the year as stable both for Android and iOS. This can be done either using a supported OBDLink device, such as the OBDLink LX/MX/MX+, or via a DIY device.
This is a fast and reliable way of obtaining information, better than querying the ECU through the OBD-2 protocol, that is slow and often unreliable.
RACE CHRONO PLUS PRO
Since version 6.0.x the RaceChrono Pro app has the ability to log CAN-bus broadcasted messages.
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