2022-05-18, 04:59 AM
Looking for some help.
I setup an ESP32 using SensESP first with v1 and now with v 2.4.1 for a fuel flow meter. I'm away from the trawler and can't test directly. I've tested the connection using a YF-201 water flow meter into pin 4 and 5 as given in example - https://open-boat-projects.org/en/sensesp/ . It works great,
The fuel flow meter on the trawler is a FloScan meter. Documents state the meter outputs is in the 4 to 10 volts for the readings.
How to I wire in the FloScan meter output into the ESP32? I'm I wrong to assume that pin 4 and 5 only take 3.3v and I'll need to use a voltage divider or something to take the voltage down to rescale for the flow reading? Or can I wire directly since it only looking at frequency reading only and volts does not matter and the ESP32 handles the voltage?
Any help will be greatly appreciated!
Thanks
Jim
I setup an ESP32 using SensESP first with v1 and now with v 2.4.1 for a fuel flow meter. I'm away from the trawler and can't test directly. I've tested the connection using a YF-201 water flow meter into pin 4 and 5 as given in example - https://open-boat-projects.org/en/sensesp/ . It works great,
The fuel flow meter on the trawler is a FloScan meter. Documents state the meter outputs is in the 4 to 10 volts for the readings.
How to I wire in the FloScan meter output into the ESP32? I'm I wrong to assume that pin 4 and 5 only take 3.3v and I'll need to use a voltage divider or something to take the voltage down to rescale for the flow reading? Or can I wire directly since it only looking at frequency reading only and volts does not matter and the ESP32 handles the voltage?
Any help will be greatly appreciated!
Thanks
Jim