diff --git a/README.md b/README.md index e18fc17..84b9610 100644 --- a/README.md +++ b/README.md @@ -14,6 +14,20 @@ Here is a video demonstrating data acquired using this device: is a post with more info on how I got RaceChrono displayed on my headunit via Android Auto. +## Safety disclaimer + +CAN bus is like a "nervous system" in a car. It is a network that connects +various ECUs, sensors, etc. Connecting a new device to this network poses risks +such as data corruption, packet losses, etc., that can negatively affect the +performance of some or all components of your car. Same applies to incorrect +connections and alternations of the CAN bus wiring. This can cause various +undesirable effects, such as "Check engine" lights, electrical and mechanical +damage, loss of control, injuries and even death. + +By using this project you assume any and all risk assosciated with using the +described DIY devices, and release any liability from the author(s) and +controbutors to this project. + ## Supported Hardware * Adafruit ItsyBitsy nRF52840 Express @@ -114,3 +128,26 @@ Arduino Uno), and use the from my fork of the `arduino-CAN` library, and connect the two boards into a small CAN network. Note that you don't need to use a jumper to connect the 120 Ohm resistor on the second board in a CAN network (right?). + +## Contributions + +I'd be happy to add more info on the CAN protocol for other popular sport cars. +Feel free to send pull requests! + +## Support the project + +I hope you found this project useful, entertaining, educating, etc. +Personally, I was amazed that for just ~$50 it's possible to get a data logging +system comparable to the "go to" devices that HPDE enthusasts use that cost 10x+ +more. And since the "brain" of such a data acquisition system is RaceChrono, you +don't need to fiddle with cables, laptops, etc. to review your data when you +come back to the pits between sessions. + +Having said that, I've spent a few too many evenings on this project, and this +is not my paid job. I have some more exciting ideas on how to further improve +this project, make it more accessible, support more car models... but can't +justify spending too much more time on it. If you want to thank me for what I've +already shared, or support my future ideas, I will appreciate if you send me +some "boba tea money". Here's a PayPal shortcut for your convenience: + +[![paypal](https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif)](https://www.paypal.com/donate?business=ZKULAWZFJKCES&item_name=Donation+to+support+the+RaceChronoDiyBleDevice+project¤cy_code=USD)