firmware wip - drop support for DHT11/22, we use now BME280 I2C

Arduino/CanGrow/CanGrow.ino

@@ -24,16 +24,22 @@
 #include <Adafruit_GFX.h>
 // https://github.com/adafruit/Adafruit_SSD1306
 #include <Adafruit_SSD1306.h>
-// https://github.com/adafruit/DHT-sensor-library
-#include "DHT.h"
+// https://github.com/adafruit/Adafruit_BME280_Library/
+#include <Adafruit_Sensor.h>
+#include <Adafruit_BME280.h>
 // https://github.com/bblanchon/ArduinoJson
 #include <ArduinoJson.h>
 // https://github.com/arduino-libraries/NTPClient
 #include <NTPClient.h>
 // https://github.com/PaulStoffregen/Time
 #include <TimeLib.h>
+// DHT support dropped
+// https://github.com/adafruit/DHT-sensor-library
+// #include "DHT.h"
 
-// CanGrow header files
+/*
+ * CanGrow header files
+ */
 
 #include "CanGrow_PinAssignments.h"
 #include "CanGrow_Init.h"
@@ -54,7 +60,7 @@ void setup() {
 
   // setup pins
   pinMode(PinFAN, OUTPUT);
-  pinMode(PINdht, INPUT);
+  //pinMode(PINdht, INPUT);
   pinMode(PINwaterlevel, OUTPUT);  
   pinMode(PINsoilmoisture, OUTPUT);  
   pinMode(PinLED, OUTPUT);
@@ -88,10 +94,12 @@ void setup() {
   // whats get the cursor somewhere over the place
   Serial.println("420");
   Serial.println(".:: CanGrow Start ::.");
-    
+  
+  Serial.println(":: initialise I2C ::");  
   // initialise Wire for I2C
   Wire.begin();
   
+  Serial.println(":: initialise display ::");
   // initialise I2C display
   display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x64
   display.clearDisplay();
@@ -105,11 +113,20 @@ void setup() {
   display.drawBitmap(0, 0, bmpCanGrow_Logo, 128, 32, WHITE);
   display.display();
 
+  Serial.println(":: initialise chirp sensor if present ::");
   // reset chirp
   writeI2CRegister8bit(0x20, 6); //TODO: Do only, when configured
   
   // initialise DHT11
-  dht.begin(); //TODO: Do only, when configured
+  // dht support dropped
+  // dht.begin(); //TODO: Do only, when configured
+  
+  // initialise BME280
+  Serial.println(":: initialise BME280 sensor ::");
+  // ToDo: let the user configure somewhere the ID of the BME280 sensor
+  if(!bme.begin(0x76)) {
+    Serial.println("!! Cannot find BME280 on I2C bus. Please check connection or ID");
+  }
   
   Serial.println("To wipe the EEPROM saved data, set D4 (PinWIPE) to LOW - NOW! (2 seconds left)");
   // wait a few seconds to let the user pull D4 down to wipe EEPROM

Arduino/CanGrow/CanGrow_PinAssignments.h

@@ -18,7 +18,7 @@
 // D0 is HIGH at boot, no PWM
 const uint8_t PinPUMP = D0;
 // If D3 is pulled to LOW, boot fails
-const uint8_t PINdht = D3;
+//const uint8_t PINdht = D3;
 // D4 is HIGH at boot, boot fail if pulled to LOW
 // During Start Screen you can pull D4 to LOW to wipe saved data in EEPROM
 // DO NOT PULL D4 DOWN AT WHEN POWERING ON !!! BOOT WILL FAIL

Arduino/CanGrow/CanGrow_Sensors.h

@@ -2,8 +2,17 @@
  * DHT Stuff
  *  
 */
-#define DHTTYPE DHT11
-DHT dht(PINdht, DHTTYPE);
+// DHT support dropped to get a free pin for fan PWM
+//#define DHTTYPE DHT11
+//DHT dht(PINdht, DHTTYPE);
+
+/*
+ * BME280 Stuff
+ * 
+ */
+
+#define SEALEVELPRESSURE_HPA (1013.25)
+Adafruit_BME280 bme;
 
 
 /*
@@ -94,8 +103,11 @@ float getTemperature(byte tempSensor) {
   
   switch(tempSensor) {
     case 1:
+      // read temperature from BME280
+      temperature = bme.readTemperature();
       // read temperature from DHT11
-      temperature = dht.readTemperature();
+      // dht support dropped
+      // temperature = dht.readTemperature();
       break;
     case 2:
       // read temperature from chrip I2C
@@ -110,7 +122,9 @@ float getTemperature(byte tempSensor) {
 }
 
 float getHumidity() {
-  return dht.readHumidity();
+  // dht support dropped
+  // return dht.readHumidity();
+  return bme.readHumidity();
 }
 
 int getSoilmoisture(byte moistureSensor, bool returnRAW = false) {

Arduino/CanGrow/CanGrow_WebFunctions.h

@@ -550,7 +550,7 @@ void WEBsystemSettings() {
       body += "<option disabled value='' selected hidden>---</option>\n";
       }
     body += "<option value='1'" + returnStrSelected(MoistureSensor_Type, 1) + ">Analog capacitive</option>\n";
-    body += "<option value='2'" + returnStrSelected(MoistureSensor_Type, 2) + ">I2C chirp</option>\n";
+    body += "<option value='2'" + returnStrSelected(MoistureSensor_Type, 2) + ">I2C Chirp</option>\n";
     body += "</select><br>\n";
   
     // SoilmoistureLow byte
@@ -563,8 +563,8 @@ void WEBsystemSettings() {
     if(configured == false) {
       body += "<option disabled value='' selected hidden>---</option>\n";
       }
-    body += "<option value='1'" + returnStrSelected(TemperatureSensor_Type, 1) + ">DHT11/22</option>\n";
-    body += "<option value='2'" + returnStrSelected(TemperatureSensor_Type, 2) + ">I2C chirp</option>\n";
+    body += "<option value='1'" + returnStrSelected(TemperatureSensor_Type, 1) + ">I2C BME280</option>\n";
+    body += "<option value='2'" + returnStrSelected(TemperatureSensor_Type, 2) + ">I2C Chirp</option>\n";
     body += "</select><br>\n";
     
     // NtpOffset int
@@ -1018,9 +1018,11 @@ void APIgetDebug() {
   objSensors["chirp"]["soilmoistureRAW"] = getSoilmoisture(2, true);
   objSensors["chirp"]["light"] = getLightchirp();
   
-  // DHT11/22
-  objSensors["dht"]["temperature"] = getTemperature(1);
-  objSensors["dht"]["humidity"] = getHumidity();
+  // BME280
+  objSensors["bme280"]["temperature"] = getTemperature(1);
+  objSensors["bme280"]["humidity"] = getHumidity();
+  objSensors["bme280"]["preassure"] = bme.readPressure() / 100.0F;
+  objSensors["bme280"]["appAltitude"] = bme.readAltitude(SEALEVELPRESSURE_HPA);
   
   // Analog
   objSensors["analog"]["soilmoisture"] = getSoilmoisture(1);

playground/html/systemSettings/index.html

@@ -0,0 +1,199 @@
+
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset='UTF-8'>
+ <meta name='viewport' content='width=device-width, initial-scale=1.0'>
+<title>CanGrow - Ruderalis Indica</title>
+
+ <link rel='icon' href='data:;base64,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'>
+ <style>
+body {
+  color: #cae0d0;
+  background-color: #1d211e;
+  font-family: helvetica;
+}
+
+.center {
+    width: 100%; 
+    margin: auto;    
+} 
+
+h1, h2, h3, h4, h5 {
+  text-align: center;
+}
+a:link, a:visited {
+  color: #04AA6D;
+}
+a:hover {
+  color: #64AA6D;
+}
+a:active {
+  color: #04AA6D;
+}
+.infomsg , .warnmsg {
+  color: #fff;
+  border-radius: 3px;
+  padding: 4px;
+  width: fit-content; min-width: 200px; max-width: 420px;
+  margin: auto;
+  margin-bottom: 5px;
+  font-weight: bold;
+  text-align: center;
+  text-decoration: none;
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.5);
+}
+.infomsg {
+  background: #04AA6D;
+}
+.warnmsg {
+  background: #aa4204;
+}
+.inputShort {
+  width: 42px;
+}
+
+.nav {
+  background: #333;
+  width: 100%; 
+  margin: auto;
+  margin-bottom: 10px;
+  padding: 0;
+  position: relative;
+  border-radius: 3px;
+}
+
+.nav li {
+  display: inline-block;
+  list-style: none;
+}
+
+.nav li:first-of-type {
+  background: #026b45;
+  border-top-left-radius: 3px;
+  border-bottom-left-radius: 3px;
+}
+.nav li a , .nav span, .button, .button:link, input[type=button], input[type=submit], input[type=reset] {
+  color: #ddd;
+  display: block;
+  font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif;
+  font-size:0.8em;
+  padding: 10px 20px;
+  text-decoration: none;
+  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.5);
+}
+
+.nav li a:hover , .activeMenu, .button:link:hover, .button:visited:hover, input[type=button]:hover, input[type=submit]:hover, input[type=reset]:hover  {
+  background: #04AA6D;
+  color: #fff;
+  border-radius: 3px;
+}
+
+.nav li a:active {
+  background: #026b45;
+  color: #cae0d0;
+}
+
+.activeMenu {
+  background: #444;
+}
+
+.MenuTime {
+  background: #292929;
+}
+
+.button, .button:link, .button:visited, input[type=button], input[type=submit], input[type=reset] {
+  background: #026b45;
+  color: #fff;
+  border-radius: 3px;
+  padding: 6px 12px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+  border: none;
+}
+
+.button:link:active, .button:visited:active, input[type=button]:active, input[type=submit]:active, input[type=reset]:active {
+  background: #026b45;
+  color: #cae0d0;
+}
+
+input[type=text], input[type=date], input[type=number], input[type=password], select {
+  background: #cae0d0;
+  color: #1d211e;
+  border: 1px solid #026b45;
+  border-radius: 3px;
+}
+
+ @media only screen and (min-width: 1280px) {
+  .center, .nav {
+    width: 60%; min-width: 420px;    
+  }
+}
+ </style>
+</head>
+<body>
+ <ul class='nav'><li><a  href='/'>&#x1F331; Ruderalis Indica</a></li>
+<li><a href='/growSettings' >&#128262; Grow settings</a></li>
+<li><a href='/systemSettings' class='activeMenu'>&#9881; System settings</a></li>
+<li><a href='/wifiSettings' >&#128225; WiFi settings</a></li>
+<li><a href='/help' >&#x2753; Help</a></li>
+<li><span class='MenuTime'>00:03:39</span></li>
+<li><a href='https://git.la10cy.net/DeltaLima/CanGrow' target='_blank'>CanGrow v0.1</a></li>
+</ul><div class='center'><h2>&#9881; System settings</h2><p>here you can set which features and sensors you use<br></p><form method='post' action='/systemSettings/save'>
+  <table>
+    <tr>
+      <td>Use FAN: </td>
+      <td>
+        <select id='UseFan' name='UseFan' required>
+          <option value='1' selected >Yes</option>
+          <option value='0'>No</option>
+        </select>
+      </td>
+    </tr>
+    <tr>
+      <td>Use PUMP: </td>
+      <td><select id='UsePump' name='UsePump' required>
+          <option value='1' selected >Yes</option>
+          <option value='0'>No</option>
+        </select>
+      </td>
+    </tr>
+    
+    <tr>
+      <td>Use relais for LED: 
+      </td>
+      <td>
+        <select id='UseLEDrelais' name='UseLEDrelais' required>
+          <option value='1'>Yes</option>
+          <option value='0' selected >No</option>
+        </select>
+      </td>
+    </tr>
+    <tr>      
+      <td></td>Use relais for FAN: </td>
+      <select id='UseFANrelais' name='UseFANrelais' required>
+      <option value='1'>Yes</option>
+      <option value='0' selected >No</option>
+      </select>
+    </tr>
+    PUMP ON time: <input class='inputShort' type='number' name='PumpOnTime' min='0' max='255' value='3' required> Seconds<br>
+    Soilmoisture sensor: <select id='MoistureSensor_Type' name='MoistureSensor_Type' required>
+    <option value='1' selected >Analog capacitive</option>
+    <option value='2'>I2C chirp</option>
+    </select><br>
+    Soilmoisture low: <input class='inputShort' type='number' name='SoilmoistureLow' min='0' value='20' required> %<br>
+    Temperature sensor: <select id='TemperatureSensor_Type' name='TemperatureSensor_Type' required>
+    <option value='1' selected >DHT11/22</option>
+    <option value='2'>I2C chirp</option>
+    </select><br>
+    NTP offset: <input class='inputShort' type='number' name='NtpOffset' min='-12' max='14' value='2' required> Hours<br>
+    Maintenance Duration: <input class='inputShort' type='number' name='MaintenanceDuration' min='0' max='900' value='300' required> Seconds<br>
+    <input type='submit' value='Save'>
+
+</table>
+</form>
+
+ </div>
+</body>
+</html>