I need to adapt a commercially available automotive Heads Up Display like:
https://www.amazon.com/Liiiyuan-Windshield-Speedometer-Consumption-Temperature/dp/B0CS5VB5D7/ref=sr_1_1_sspa?crid=XWKSX76Z8YNC&dib=eyJ2IjoiMSJ9.SJkt_liILl2xUFreWkV4dhFeUeN7hcF_jXpBxo6vYmnLADFtFRMr2Ls7thYXwJoNMuNKtlFFJdGfvg4Tdv6OiAdhnV6CJ1TDq2UIzmmPdbroXOuwVD-R5Wn0E8zyaUZBeL_BpSjN_DN9cLR1Fdhs5Z-RO_9XnP-DrVB2F3AU9Ld_K3zqVWzP9NGMxA0LxDjs_DZZFHQtS6DeehCNjeCRADHbf6Fwz9K2CrDazwqEP0s.04L9tY3Zr5HXt2zHs5JTB9REi-xZ9rknGcIwGSQPQwY&dib_tag=se&keywords=heads+up+display&qid=1731603176&sprefix=heads+up+display%2Caps%2C249&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1
to read completely different inputs from an electric vehicle.
Instead of, take your pick, RPM for the gasoline engine, the signal would be modified by an Arduino or similar to reflect the RPM of the electric motor. It would need to show Traction pac current voltge, estimated remaining mileage and other parameters.