Has anyone built speed measuring instruments using a car speed sensor?
I’ve been messing around with an old Peugeot project car and I wanted to try building my own speedometer setup instead of replacing the whole instrument cluster. The car has no ECU, so from what I understand the gearbox uses a 3 pin hall sensor for speed readings.
I’m still pretty new to Arduino stuff, so this is partly a learning project and partly me being stubborn about fixing old cars in weird ways lol. I’ve watched a bunch of videos already but everybody explains things like you’re supposed to magically know electronics beforehand.
Right now I’m trying to figure out what hardware I’d even need besides the Arduino board itself. Some people mention pull up resistors and signal converters while others make it sound super simple. I also noticed a lot of DIY speed measuring instruments and sensor kits seem to come from the same industrial suppliers that list components through online manufacturing catalogs.
I don’t need anything super polished. I just want a reliable digital speed readout that won’t freak out while driving.Anybody here done something similar and willing to explain it in beginner language?