Car Dash mounted Multigauge

[BennehBoy]

Dusted off this old project again.

I'm adding some more instrumentation to the vehicle - a Land Rover:

Gearbox oil pressure
Gearboc oil temperature
Transfer box oil temperature
Engine oil pressure
Engine oil temperature

Anyhow, the currently running system is built using a Maple Mini clone, unfortunately that doesn't have enough analogue inputs for me to hook up all the sensors - I'm using SPI 1 with an SSD1306, & SPI 2 with a Max31856 thermocouple chip - the libraries for them don't play well together so I can't condense things onto 1 bus.

This means I've dusted off an FK407M1 since it has a lot more ADC for the size of the package - scratched my head for a bit when I couldn't build my project, when I submitted the variant to the core I must've removed the SDIO support... crufted that back in and SD working again.

Spent a fair part of the day refactoring my horrific coding, cleaning up the graphics drawing and adding another graph type.

Also removed all the OBD code as I _never_ use it in the vehicle, it simplifies the electronics a fair bit too - no K line conversion required.

I'll probably slim down all the cross board compatibility in the code before updating the repo - I doubt anyone but me is actually using it anyway

github repo -> https://github.com/BennehBoy/LRDuinoTD5

[fpiSTM]

Thanks for sharing. Nice to have some news

[BennehBoy]

I built myself a rats nest....



This proves each of the sensor types work - with the exclusion of an earth switched coolant level sensor that I'll incorporate tonight.

You can see on the display that the max31856 is supplying the room temperature from the K-type - it's not super accurate, but close enough and proves it's working.

After that I'll get this all onto stripboard for the one off build that's going into the vehicle.

[zippie]

Cool project. any more progress on this?