Hello, I have an FMM130 and i am trying to record the frequency of pulses of a RPM sensor. I have been testing on a pulse generator and it worked nice with a 5 V voltage, but now i am trying with the RPM sensor at 12 V and i get all the time around 500 Hz x 10 even when i am not detecting anything. Any idea about how to fix it?. I try to cover the connection to make it more liable.
Thank you in advance
Hi,
Good day, please note that we have a voltage threshold for the pulse counter
Reference: Impulse counter - Wiki Knowledge Base | Teltonika GPS
Best Regards
Maynard C