Pulse counter

[wetbehindtheears]

Thanks for your interest. I've almost never used VB.NET before, being a hardware guy, but I need a way to register electronic pulses from a rotation sensor sending out one pulse per rotation. I imagine I'll end up using a serial port somehow... Anyway, how do I do this?

 

[lyndon]

Two ideas come to mind.
a) DIY method using an Arduino to read an input bit and send data out over serial or USB
b) An off the shelf RS232 serial pulse counter

Advantage of the first is that there may be a cost advantage. The second device is prebuilt and tested and known good.