Hello,
I had two water meters (reed switch : GIOANOLA Compteur d'eau chaude à impulsion - 3/4p 1 imp/litre Eco Energie) that worked fine with Arduino + My Sensors.
Because I want to go to EspHome and get rid of Arduino and My Sensors, I converted them to EspHome with an ESP32… but I get incorrect pulse count !
I have false pulse that appear from time to time, for exemple below, all the pulses before 18:00 were false.
I didn’t had this issue with Arduino.
What should I change to get accurate results ? External PullUp ? Schmitt Trigger ? Config change ?
Thanks a lot for your help !
Result
ESP Home Config
Verbose, but I tryed a lot of configuration …
sensor:
- platform: pulse_counter
use_pcnt: false
internal_filter: 100ms
count_mode:
rising_edge: DISABLE
falling_edge: INCREMENT
id: water_city_id
pin:
number: 22
mode:
input: true
pullup: true
name: "Water City Consumption"
unit_of_measurement: 'L/min'
accuracy_decimals: 2
total:
unit_of_measurement: 'L'
name: 'Water City Total'
accuracy_decimals: 0
Old arduino sketch
Choosen parts of the code 
pinMode(DIGITAL_INPUT_SENSOR1, INPUT_PULLUP);
Debouncer debouncer1(DIGITAL_INPUT_SENSOR1, 50);
...
void onPulse1()
{
Serial.println("pulse1 counted");
pulseCount1++;
}
debouncer1.subscribe(Debouncer::Edge::FALL, [](const int state) {
onPulse1();
});