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+--- Thread: 24V Pulse input (/showthread.php?tid=9317)
24V Pulse input - Onepointbrewing - 05-04-2026
I have a IFM SM7000 flow meter that is set to nPn pulse output for measuring the flow unit.
It is a 24V unit (both the F16 and the flow meter)
What input on the F16 can I wire this to in order to count the pulses..... Will the standard digital inputs work?
Thanks
RE: 24V Pulse input - admin - 05-04-2026
you can connect with free GPIO port, config by ESPHome. not use by digital input, because digital input port with opto-coupler on PCB.
free GPIO are connect with ESP32S3 module pin directly.
RE: 24V Pulse input - Onepointbrewing - 05-04-2026
Hello Sir
I just want to understand, why should I not use the digital input port if it is opto-isolated???? Wouldnt that be safer/better becasue it is opto-isolated?
RE: 24V Pulse input - admin - 05-05-2026
i don't know your pulse whether is very fast. if not very fast, you can connect with digital input with opto-isolated.