From 7a689034b44ef69697178bcae8b28855d354d2cb Mon Sep 17 00:00:00 2001
From: Kai Lauterbach <klaute@gmx.de>
Date: Sun, 22 May 2022 08:51:24 +0200
Subject: [PATCH] Added windspeed exceed functionality, it calls an url if max
 windspeed is exceeded

---
 firmware/config.h     |  4 ++++
 firmware/firmware.ino | 38 ++++++++++++++++++++++++++++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/firmware/config.h b/firmware/config.h
index 3a02556..352a019 100644
--- a/firmware/config.h
+++ b/firmware/config.h
@@ -37,6 +37,10 @@
 #define COUNT_TO_MPS             (TWO_PI * ROTOR_LENGTH_M  / WIND_SENSOR_MEAS_TIME_S)
 #define WINDSPEED_FACTOR         (COUNT_TO_MPS * MPS_CORRECT_FACT)
 
+#define HTTP_CALL_ON_WINDSPEED_EXCEED_MPS 5.0 // 5.0 m/s == 18 km/h
+#define HTTP_CALL_ON_WINDSPEED_INTERVAL_S  60 // it's required to be bigger than WIND_SENSOR_MEAS_TIME_S
+#define HTTP_CALL_ON_WINDSPEED_URL         "http://192.168.0.250:3001/button-windspeedexceed?event=click"
+
 #define BAT_LOW_VOLTAGE                 3.6
 #define BAT_EMERGENCY_DEEPSLEEP_VOLTAGE 3.5
 
diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index dc26f0d..24ce7dd 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -4,6 +4,7 @@
 #include <ESP8266WiFi.h>
 #include <DNSServer.h>
 #include <ESP8266WebServer.h>
+#include <ESP8266HTTPClient.h>
 
 #include <WiFiClient.h>  // WiFiClient
 #include <WiFiManager.h> // WiFiManager from bib manager
@@ -11,6 +12,12 @@
 // Project includes
 #include "config.h"
 
+#ifdef HTTP_CALL_ON_WINDSPEED_EXCEED
+#if (HTTP_CALL_ON_WINDSPEED_INTERVAL_S < HTTP_CALL_ON_WINDSPEED_EXCEED_MPS)
+#error "HTTP_CALL_ON_WINDSPEED_INTERVAL_S < WIND_SENSOR_MEAS_TIME_S"
+#endif
+#endif
+
 #include "config_user.h"
 
 //*************************************************************************//
@@ -19,8 +26,9 @@ const uint8_t VALUES = 8;
 float currentSensorData[VALUES] = {nanf("no value"), nanf("no value"), nanf("no value"), nanf("no value"), nanf("no value"), nanf("no value"), nanf("no value"), nanf("no value")};
 float (*sensors[VALUES])() = {};
 
-uint16_t update_sensor_cnt    = 0;
-uint16_t update_webserver_cnt = 0;
+uint16_t update_sensor_cnt           = 0;
+uint16_t update_webserver_cnt        = 0;
+uint16_t update_windspeed_exceed_cnt = 0;
 
 WiFiManager wifiManager;
 
@@ -206,10 +214,36 @@ void loop()
 #ifdef WEBUPDATER_FEATURE
   update_webserver_cnt++;
 #endif
+
+#ifdef HTTP_CALL_ON_WINDSPEED_EXCEED
+  update_windspeed_exceed_cnt++;
+#endif
 }
 
 void _loop() {
 
+#ifdef HTTP_CALL_ON_WINDSPEED_EXCEED
+  if (HTTP_CALL_ON_WINDSPEED_INTERVAL_S * 1000 / DELAY_LOOP_MS > update_windspeed_exceed_cnt) {
+    if (sensors[SENSOR_WINDSPEED]) {
+      currentSensorData[SENSOR_WINDSPEED] = sensors[SENSOR_WINDSPEED]();
+
+      if (currentSensorData[SENSOR_WINDSPEED] >= HTTP_CALL_ON_WINDSPEED_EXCEED_MPS)
+      {
+        // call the url HTTP_CALL_ON_WINDSPEED_URL
+        WiFiClient client;
+        HTTPClient http;
+        http.begin(client, String(HTTP_CALL_ON_WINDSPEED_URL).c_str());
+        http.end();
+        // Send HTTP GET request
+        int httpResponseCode = http.GET();
+      }
+    } else {
+      currentSensorData[SENSOR_WINDSPEED] = nan("no value");
+    }
+    update_windspeed_exceed_cnt = 0;
+  }
+#endif
+
 #ifndef BATTERY_POWERED
   if (UPDATE_SENSOR_INTERVAL_S * 1000 / DELAY_LOOP_MS > update_sensor_cnt) {
     return;