From 479c6a499e7ab2649c78f1197e1af2478f944c83 Mon Sep 17 00:00:00 2001
From: Emmanuel Lacour <elacour@easter-eggs.com>
Date: Mon, 4 Jul 2022 22:24:16 +0200
Subject: [PATCH] Add software debouncing

---
 station-meteo/station-meteo.ino | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/station-meteo/station-meteo.ino b/station-meteo/station-meteo.ino
index 5a96ba8..dc4cc21 100644
--- a/station-meteo/station-meteo.ino
+++ b/station-meteo/station-meteo.ino
@@ -29,10 +29,8 @@ String location = LOCATION;
 int rainfall_sensor_pin = 2;
 float rain_incr = 0.2794; // this is mm/m2 for each sensor tick 
 int rainfall_ticks = 0;
-
-// Timing
-unsigned long previousMillis=   0;
-unsigned long previousMillis2=  0;
+long debouncing_time = 30;
+volatile unsigned long last_micros;
 
 // Initiate udp client
 WiFiUDP udp;
@@ -178,5 +176,8 @@ void printWifiStatus() {
 
 void getRain ()
 {
-  rainfall_ticks ++ ; 
+  if((long)(micros() - last_micros) >= debouncing_time * 1000) {
+    rainfall_ticks ++ ; 
+    last_micros = micros();
+  }
 }
-- 
2.11.0