Good morning all! I am on a project and I would need help. I need to create a constant B + 12v signal from a VSS (vehicle speed sensor) signal. To put it simply, when the vehicle starts to move forward I want to emit a warning signal. VSS TO 12V B +. thank you in advance
I don’t understand fully what you are saying... are you asking how to read 12V in an Arduino?
You could create a voltage divider with resistors.
What does this mean, exactly?
create a constant B + 12v signal
The Arduino cannot "create" a 12V signal. However, you could use a relay to connect a 12V source to something else.
If you don't have a 12V source that you can switch on & off to the alarm, then you'd need a boost converter that you can switch on & off.
Example: https://www.pololu.com/product/2895
cutter1122:
B + 12v signal
Is that some kind of shorthand for "Battery +12V"? Or is it some mysterious level, 12V above "B"?