All tested and working live plugged into my car.   DCCD with small lcd 3x7cm screen showing status similar to dash. Currently not fancy build, just obd2 cable with circuit board cable tied to it.   Can customise it to look like any aftermarket dash or OEM eg even animations. some ideas…        

Early version of TPMS testing layout and colouring. Currently the magenta lines are grey and text is white unless alarm then red or orange.   Screen is 1.3” and outside is about 52mm  similar size to 08 aircon dials. Thinking 3 will fit across a single DIN stereo panel size, so could have TPMS, G force sensor and something else.

Have made some esp32 gauges and displays for my car. does anyone want something like this or have any suggestions?   All these are setup over wifi with webpage to enter settings. It’s pretty basic so far but could add presets to auto configure for different generations.   Tire pressure over Bluetooth round display that you turn outer ring to see different pressure units, and push to turn off display. It comes back on for new alerts etc. Can add sensor ID and working on a discovery feature. I theory the 2012 or newer cars could have this canbus the data to the OEM screen. The older cars have a physical wire to the dash lamp.   RPM bar display 16-40 led F1 style. Has rpm limits and flash rate etc settings. Currently only canbus but could do pulse counting so works with older rpm signal.   DCCD display. Currently no settings just smart watch screen that can show auto with +- manual and the diff lock level. Graphics need a lot of work.   canbus keypad. There is a opencan version online so could be auto configured by most aftermarket ecu brands. Or web page where set canbus id and then ecu can receive messages when buttons are pressed. Could also receive messages from ecu to turn on/off illumination behind keys, or set colour.

Just checked this on my car and live canbus view while changing switches shows it matches the above ID and dash display.  

Yup got mine off trademe in the end from Ledbits2012 Rang around lots of places and no-one seemed to know what the part was, infact im noticing more and more that parts businesses have less and less on hand knowledge and rely totaly on their what their computer tells them   then i spoke to the guy at Ledbits and he pretty much said alot of the o2 sensors will work as they are all pretty similar I got a 3plug one that worked fine with my ecu but the plug didnt match so  i just cut and soldiered my old plug to it and its been mint since   Flew through a WOF yesterday - man i love this Legacy as its in such good nick getting wofs isnt a headache and i must say I LOVE the tein suspension, I dont even have to slow down for speed bumps, a great ride and very high quality suspension    BUT   I need to source a TPS  (A22-000R25)  was hoping to find one locally but nothing so far >_ <