Reid’s Status Report for 4/10/21

This week I integrated my code with Ryan’s database so the data is fully stored on the Raspberry Pi. I also worked with the non-standard PIDs that we need and quickly realized that Odometer might be impossible to find: https://github.com/brendan-w/python-OBD/issues/194. This was confusing because on Wikipedia it is listed as a Standard PID in mode one (0x01A6) but that doesn’t yield any data on my Honda. It may be a non-standard PID but it is more likely that it is not available but I will keep checking. I am working with Ryan to discard the odometer data and instead get distance from mph reading and time.time() recordings in Python to find distance averaged across timestamps. We also limited testing to my car since the RAV-4 was not responding to our fuel level requests. This week I did some rudimentary road testing with my laptop and OBD2 cable with results being written to a .db file on my laptop to make sure the unit formatting was correct. I also tried to get the non-standard PIDs that we need (steering wheel angle, turn signal) but it was much more difficult that I thought. I wrote a test script to go through service 06 (CAN mode) to sniff all the possible PIDs from 0x0601 to 0x06FFF and found 300 or so possible PIDs (which will be a lot to go through). Other PIDs for older Civics that were tested on the internet didn’t yield success either and the 2016 Civic non-standard PIDs that is publicly available here: https://github.com/commaai/opendbc/blob/master/honda_civic_sedan_16_diesel_2019_can_generated.dbc doesn’t correlate with my 2020 model. I am still looking at alternatives but it is likely that I will have to go through the PIDs that I narrowed it down to.