I just install a IFM magnetic sensor to count my water (with led) so I can
see good the pulse of the signal.
Know someone, that the input of the flusko meter count on negative and positive signal ?
Thanks,
Sven
Amedee |
It is an 'open collector' input.
The meter 'sees' a pulse when the '+' sensor pin goes from High to Low.
(E.g. when you short the '+' and the '-')
icarus75 |
Correct. There's a internal 20-30k pull-up resistor present on the + of the input. Shorting + and - will pull down the +. There's an edge-triggered high-to-low interrupt configured on the +.
It is an 'open collector' input.
The meter 'sees' a pulse when the '+' sensor pin goes from High to Low.
(E.g. when you short the '+' and the '-')
Correct. There's a internal 20-30k pull-up resistor present on the + of the input. Shorting + and - will pull down the +. There's an edge-triggered high-to-low interrupt configured on the +.
Cheers,
Bart.