Feeler - Touchscreen OBC with Megasquirt CAN interface, extra sensors, outputs, etc.

[Panici]

Looks really good Mikey!
I'd like to see that video of it in action

[mikey.antonakakis]

That 13 button OBC screen is awesome retro look! An add-on board that can sit in the engine bay and communicate back over CAN would be cool as well.

Any options for stock ECUs and adding additional sensors to display on the screen (wideband O2, additional coolant temp, oil temp/pressure).

See my nearly simultaneous post, short answer: yes.

Longer answer: how you need to do it depends on your exact setup, but as things sit right now it shouldn't be difficult. For example, I have my wideband O2 wired to my Megasquirt 2, and the MS2 sends the AFR via CAN to the PCB pictured above; I push the "AFR" button on the simulated 13-button OBC, and it brings up a VDO AFR gauge that uses the data coming from the Megasquirt. If you're running a stock ECU, the difference would be that you wire the wideband's analog output directly to my PCB and read it in that way, rather than via CAN (might need to build a simple voltage divider to ensure the wideband's analog output never exceeds the 3.3V limit of the Teensy analog input pins, or configure output curve via wideband software).

That's exactly what I do with oil and fuel pressure, I have analog sensors installed whose outputs are wired to a couple of the PCB's analog inputs. Coding for reading these values and sending them to the display can be done in Arduino IDE, and is basically copy-paste of what I have already done. The display has its own GUI editor software, which if you can handle Arduino stuff is a breeze.

[mikey.antonakakis]

Looks really good Mikey!
I'd like to see that video of it in action

Hoping to make one this week!

[mikey.antonakakis]

Small update, but I was able to shoehorn the micro-USB bulkhead adapter into my enclosure despite all of the prototyped circuits I have taking up space with my own use-case:

[mikey.antonakakis]