DIY Gauge

[CrankyOldMan]

Wow, that's a really nice setup! I've played with Arduinos at school, and have seen a few people use BT communications.

I've got a scangauge II and it's a very useful tool. It can monitor anything on the OBD-II diagnostics bus, plus anything that you "find" the OEM codes for. It also reads and clears diagnostic trouble codes (DTC)/check engine light (CEL) errors, can record performance data (0-60, 1/4 mile, etc), and a few other neat things that are escaping me at the moment.

[dj92]

Originally Posted by CrankyOldMan

I've played with Arduinos at school, and have seen a few people use BT communications.

Not so old, huh?

I have been thinking about adding an automatic contrast compensation (I have to correct it when the interior and the display have reached a higher temperature, otherwise it gets all black), sadly this will be a bit tricky because it is a negative voltage :/

[CrankyOldMan]

Originally Posted by dj92

Not so old, huh?

I have been thinking about adding an automatic contrast compensation (I have to correct it when the interior and the display have reached a higher temperature, otherwise it gets all black), sadly this will be a bit tricky because it is a negative voltage :/

Ahem, University.

You may be better off finding an "extended temperature range" version of that display.