From 956e9fc41a18847d51fa08955ecd5b5637f7666a Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <wolfgang.hottgenroth@icloud.com>
Date: Fri, 26 Jan 2024 12:10:20 +0100
Subject: [PATCH] beep

---
 LoRa32-CO2-Meter.ino | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/LoRa32-CO2-Meter.ino b/LoRa32-CO2-Meter.ino
index 320d912..f1815d1 100644
--- a/LoRa32-CO2-Meter.ino
+++ b/LoRa32-CO2-Meter.ino
@@ -64,7 +64,7 @@ uint8_t appPort = 2;
 */
 uint8_t confirmedNbTrials = 4;
 
-typedef enum { off_e, red_e, green_e, yellow_e, blue_e } color_t;
+typedef enum { off_e, red_e, green_e, yellow_e, blue_e, white_e } color_t;
 
 static void led(color_t color) {
   switch (color) {
@@ -83,6 +83,9 @@ static void led(color_t color) {
     case blue_e:
     pixels.setPixelColor(0, pixels.Color(0,0,50));
     break;
+    case white_e:
+    pixels.setPixelColor(0, pixels.Color(255,255,255));
+    break;
   }
   pixels.show();
 }
@@ -127,6 +130,9 @@ static void prepareTxFrame( uint8_t port )
   *the max value for different DR can be found in MaxPayloadOfDatarateCN470 refer to DataratesCN470 and BandwidthsCN470 in "RegionCN470.h".
   */
 
+  led(white_e);
+  
+
   struct __attribute__((__packed__)) {
     uint8_t status;
     int32_t co2con;
@@ -177,7 +183,6 @@ static void prepareTxFrame( uint8_t port )
         Serial.println(errorMessage);
       }
       calibrationMode = HIGH;   
-      led(off_e);
     } else {
       Serial.print("Waiting for calibration: ");
       Serial.print(waitTimeForCalibration);
@@ -185,13 +190,23 @@ static void prepareTxFrame( uint8_t port )
     }
   }
 
+  #define TONECNTMAX 10
+  static int toneCnt = TONECNTMAX;
   if (calibrationMode == HIGH) {
     if (co2con < 1100) {
       led(green_e);
+      toneCnt = TONECNTMAX;
     } else if (co2con < 2000) {
       led(yellow_e);
+      if (toneCnt >= TONECNTMAX) {
+        tone(7, 500, 250);
+        toneCnt = 0;
+      }
+      toneCnt++;
     } else {
       led(red_e);
+      tone(7, 1000, 250);
+      toneCnt = TONECNTMAX;
     }
   }
 
@@ -226,6 +241,9 @@ void setup() {
     led(off_e);
   }
 
+  pinMode(7, OUTPUT);
+  tone(7, 1000, 500);
+
   Wire1.begin(41, 42, 10000);
   //sensor.begin(Wire, SCD30_I2C_ADDR_61);
   sensor.begin(Wire1, 0x61);