Merge branch 'pwm' into 'master'

Pwm



See merge request !5

WifiControlSensor/MQTT.h

@@ -11,4 +11,5 @@ int MqttDryPublish(int dry);
 int MqttIPPublish(const String &ip);
 void MqttCheckSubscription();
 void MqttChangeGpioValue(int gpio, int value);
+void MqttChangePWMValue(int gpio, int value);
 bool MqttIsConfigured();

WifiControlSensor/MQTT.ino

@@ -9,6 +9,8 @@ Adafruit_MQTT_Publish *mqtt_dht_temp;
 Adafruit_MQTT_Publish *mqtt_dht_humidity;
 Adafruit_MQTT_Publish *mqtt_dry;
 Adafruit_MQTT_Publish *mqtt_ip;
+Adafruit_MQTT_Publish *mqttGpio[MAXSUBSCRIPTIONS] = {};
+Adafruit_MQTT_Publish *mqttPwm[MAXSUBSCRIPTIONS] = {};
 
 #define FEED_MAX_SIZE 96
 
@@ -18,20 +20,19 @@ Adafruit_MQTT_Publish *mqtt_ip;
 #define TEMPERATURE_DHT_FEED_FORMAT   "/feeds/%s/%s/dht/temperature"
 #define HUMIDITY_DHT_FEED_FORMAT      "/feeds/%s/%s/dht/humidity"
 #define DRY_FEED_FORMAT               "/feeds/%s/%s/dry"
+#define GPIO_FEED_FORMAT              "/feeds/%s/%s/gpio/%d"
+#define GPIO_SET_FEED_FORMAT          "/feeds/%s/%s/gpio/%d/set"
+#define PWM_FEED_FORMAT               "/feeds/%s/%s/gpio/%d"
+#define PWM_SET_FEED_FORMAT           "/feeds/%s/%s/gpio/%d/set"
+#define IP_FEED_FORMAT                "/feeds/%s/%s/configuration/ip/addr"
 
 // Should have less that MAXSUBSCRIPTIONS elements
 // MAXSUBSCRIPTIONS is defined is Adafruit_mqtt.h
 const int gpioWatched[] = CONFIG_MQTT_CONTROLLED_GPIO;
-
+const int pwmWatched[] = CONFIG_CONTROLLED_PWM;
-#define GPIO_FEED_FORMAT "/feeds/%s/%s/gpio/%d"
-#define GPIO_SET_FEED_FORMAT "/feeds/%s/%s/gpio/%d/set"
-
-#define IP_FEED_FORMAT "/feeds/%s/%s/configuration/ip/addr"
 
 char *mqttId;
 
-Adafruit_MQTT_Publish * mqttGpio[MAXSUBSCRIPTIONS] = {};
-
 bool isMqttConfigured = false;
 bool useMqtts = false;
 
@@ -56,10 +57,21 @@ int MqttSetup(char *server, char *user, char *passwd, int port, char *hostname)
   mqtt_dry = MqttCreatePublisher(DRY_FEED_FORMAT, user, mqttId);
   mqtt_ip = MqttCreatePublisher(IP_FEED_FORMAT, user, mqttId);
 
+  if( NB_ELEMENTS(gpioWatched) + NB_ELEMENTS(pwmWatched) > MAXSUBSCRIPTIONS){
+    SKETCH_DEBUG_PRINTF("Too much gpio/pwm to control\n Nb gpio %d Nb pwm %d Max is %d", 
+                        NB_ELEMENTS(gpioWatched), NB_ELEMENTS(pwmWatched), MAXSUBSCRIPTIONS);
+    return -1;
+  }
+
   for (uint i = 0 ; i < NB_ELEMENTS(gpioWatched) && i < MAXSUBSCRIPTIONS; i++) {
     mqtt->subscribe(MqttCreateSubscribe(GPIO_SET_FEED_FORMAT, user, mqttId, gpioWatched[i]));
     mqttGpio[i] = MqttCreatePublisher(GPIO_FEED_FORMAT, user, mqttId, gpioWatched[i]);
   }
+
+  for (uint i = 0 ; i < NB_ELEMENTS(gpioWatched) && i < MAXSUBSCRIPTIONS; i++) {
+    mqtt->subscribe(MqttCreateSubscribe(PWM_SET_FEED_FORMAT, user, mqttId, pwmWatched[i]));
+    mqttPwm[i] = MqttCreatePublisher(PWM_FEED_FORMAT, user, mqttId, pwmWatched[i]);
+  }
   return 0;
 }
 
@@ -146,11 +158,11 @@ int MqttDhtPublish(float temp, float humidity) {
   return 0;
 }
 
-int getGpioFromSubscription(Adafruit_MQTT_Subscribe *subscription) {
+int getGpioFromSubscription(Adafruit_MQTT_Subscribe *subscription, const char *pattern) {
-  char *temp = strstr(subscription->topic, "/gpio/");
+  char *temp = strstr(subscription->topic, pattern);
   if (!temp)
     return -1;
-  String gpioStr(temp + strlen("/gpio/"));
+  String gpioStr(temp + strlen(pattern));
   int idx = gpioStr.indexOf("/");
   int gpio = gpioStr.substring(0, idx).toInt();
 
@@ -160,18 +172,18 @@ int getGpioFromSubscription(Adafruit_MQTT_Subscribe *subscription) {
     return -1;
 }
 
-int getGpioWatchedIndex(int gpio) {
-  for ( uint i = 0; i < NB_ELEMENTS(gpioWatched); i++) {
-    if (gpio == gpioWatched[i])
-      return i;
-  }
-  return -1;
-}
-
 void MqttChangeGpioValue(int gpio, int value) {
   pinMode(gpio, OUTPUT);
   digitalWrite(gpio, value);
-  int watchIdx = getGpioWatchedIndex(gpio);
+  int watchIdx = findIndex(gpio, gpioWatched);
+  if (watchIdx >= 0 ) {
+    mqttGpio[watchIdx]->publish(value);
+  }
+}
+
+void MqttChangePWMValue(int gpio, int value) {
+  analogWrite(gpio, value);
+  int watchIdx = findIndex(gpio, gpioWatched);
   if (watchIdx >= 0 ) {
     mqttGpio[watchIdx]->publish(value);
   }
@@ -181,13 +193,21 @@ void MqttCheckSubscription() {
   if (MqttConnect() == 0) {
     Adafruit_MQTT_Subscribe *subscription;
     while ((subscription = mqtt->readSubscription(0))) {
-      int gpio = getGpioFromSubscription(subscription);
+      int gpio = getGpioFromSubscription(subscription, "/gpio/");
-      SKETCH_DEBUG_PRINTF("Got Subscription for gpio %d\n", gpio);
+      if (gpio > 0 && findIndex(gpio, gpioWatched) >= 0) {
-      if (gpio > 0 && getGpioWatchedIndex(gpio) >= 0) {
+        SKETCH_DEBUG_PRINTF("Got Subscription for GPIO %d\n", gpio);
         char *value = (char *) subscription->lastread;
         SKETCH_DEBUG_PRINTF("Receive data: %s\n", value);
         MqttChangeGpioValue(gpio, atoi(value));
       }
+
+      gpio = getGpioFromSubscription(subscription, "/pwm/");
+      if (gpio > 0 && findIndex(gpio, pwmWatched) >= 0) {
+        SKETCH_DEBUG_PRINTF("Got Subscription for PWM %d\n", gpio);
+        char *value = (char *) subscription->lastread;
+        SKETCH_DEBUG_PRINTF("Receive data: %s\n", value);
+        MqttChangePWMValue(gpio, atoi(value));
+      }
     }
   }
 }

WifiControlSensor/WebServer.ino

@@ -1,17 +1,10 @@
 const int gpioWebConf[] = CONFIG_WEB_CONTROLLED_GPIO;
+const int pwmWebConf[] = CONFIG_CONTROLLED_PWM;
+
+String gpioControlHTML = "";
+String pwmControlHTML = "";
 
 void WebHandleRoot() {
-  String gpioWeb = "";
-
-  if (NB_ELEMENTS(gpioWebConf) > 0){
-    gpioWeb += "<fieldset>"
-               "<legend>Relay</legend>";
-    for (uint i = 0 ; i < NB_ELEMENTS(gpioWebConf) ; i++) {
-      gpioWeb += "Relay " + String(gpioWebConf[i]) + " " + "<a href=\"/gpio?gpio=" + String(gpioWebConf[i]) + "&amp;value=1\">ON</a>/";
-      gpioWeb += "<a href=\"/gpio?gpio=" + String(gpioWebConf[i]) + "&amp;value=0\">OFF</a><br/>";
-    }
-    gpioWeb += "</fieldset>";
-  }
 
   server.send(200, "text/html",
               "<head><meta http-equiv=\"refresh\" content=\"" + String(CONFIG_SAMPLING_PERIODE_MS / 1000) + "\" ></head>"
@@ -29,7 +22,7 @@ void WebHandleRoot() {
 #ifdef CONFIG_ENABLE_DRY_SENSOR
               "Dryness " + String((dryness*100)/1024) + "%<br/>"
 #endif
-              "</fieldset>" + gpioWeb + "<fieldset>"
+              "</fieldset>" + gpioControlHTML + pwmControlHTML + "<fieldset>"
               "<legend>Settings</legend>"
               "<a href=\"/setup\">Enter Setup</a><br/>"
               "<a href=\"/otamode\">Put device in OTA mode</a><br/>"
@@ -129,6 +122,16 @@ void WebHandleGpio() {
   server.send(200, "text/html", "<h1>GPIO" + server.arg("gpio") + " changed to " + server.arg("value") + "</h1>");
 }
 
+void WebHandlePWM() {
+  if (!server.hasArg("gpio") || !server.hasArg("value")) {
+    server.send(500, "text/plain", "Bad arguments\r\n");
+    return;
+  }
+
+  MqttChangePWMValue(server.arg("gpio").toInt(), server.arg("value").toInt());
+  server.send(200, "text/html", "<h1>PWM" + server.arg("gpio") + " changed to " + server.arg("value") + "</h1>");
+}
+
 boolean WebSetIp(IPAddress &addr, const char *id, const char *error) {
   if (server.arg(id) != "" && !addr.fromString(server.arg(id).c_str())) {
     WebSendError(error);
@@ -244,11 +247,47 @@ void WebHandleWifiStatus() {
   server.send(200, "text/html", message);
 }
 
+void WebBuildGpioControl(){
+  if (NB_ELEMENTS(gpioWebConf) > 0){
+    gpioControlHTML += "<fieldset>"
+               "<legend>Relay</legend>";
+    for (uint i = 0 ; i < NB_ELEMENTS(gpioWebConf) ; i++) {
+      gpioControlHTML += "Relay " + String(gpioWebConf[i]) + " " + "<a href=\"/gpio?gpio=" + String(gpioWebConf[i]) + "&amp;value=1\">ON</a>/";
+      gpioControlHTML += "<a href=\"/gpio?gpio=" + String(gpioWebConf[i]) + "&amp;value=0\">OFF</a><br/>";
+    }
+    gpioControlHTML += "</fieldset>";
+  }
+}
+
+void WebBuildPwmControl(){
+  if (NB_ELEMENTS(pwmWebConf) > 0){
+    pwmControlHTML += "<fieldset>"
+               "<legend>PWM</legend>";
+    for (uint i = 0 ; i < NB_ELEMENTS(pwmWebConf) ; i++) {
+      pwmControlHTML += "PWM " + String(pwmWebConf[i]) + "<br/>";
+      pwmControlHTML += "<input type=\"range\"  min=\"0\" max=\"1023\""
+                        "style=\"background:#eee\""
+                        "onChange=\"setPWM(this.value," + String(pwmWebConf[i]) + ")\" />";
+    }
+    pwmControlHTML += "<script type=\"text/javascript\">"
+                      "function setPWM(newValue, gpio){"
+                      "   var xmlHttp = new XMLHttpRequest();"
+                      "   xmlHttp.open( \"GET\", \"/pwm?gpio=\"+ gpio + \"&value=\" + newValue, true );" // false for synchronous request
+                      "   xmlHttp.send( null );}"
+                      "</script>";
+    pwmControlHTML += "</fieldset>";
+  }
+}
+
 void WebSetupServer(int ) {
+  WebBuildGpioControl();
+  WebBuildPwmControl();
+
   server.on("/", WebHandleRoot);
   server.on("/setup", WebHandleSetup);
   server.on("/save", WebHandleSave);
   server.on("/gpio", WebHandleGpio);
+  server.on("/pwm", WebHandlePWM);
   server.on("/otamode", WebHandleOTA);
   server.on("/reboot", WebHandleReboot);
   server.on("/wifiStatus", WebHandleWifiStatus);

WifiControlSensor/config.h

@@ -39,6 +39,10 @@
 #define CONFIG_SSID_NAME "ESPConfigurator"
 #endif
 
+#ifndef CONFIG_CONTROLLED_PWM
+#define CONFIG_CONTROLLED_PWM {}
+#endif
+
 #ifndef CONFIG_WEB_CONTROLLED_GPIO
 #define CONFIG_WEB_CONTROLLED_GPIO {}
 #endif

WifiControlSensor/config_device.h

@@ -28,6 +28,9 @@
 // Web controlled GPIO
 #define CONFIG_WEB_CONTROLLED_GPIO {2}
 
+// GPIO used in PWM
+#define CONFIG_CONTROLLED_PWM {}
+
 
 /* DEFAULT VALUE ALSO DEFINED IN CONFIG.H */
 //If this GPIO is LOW at boot, device will enter setup mode

WifiControlSensor/utils.h

@@ -4,3 +4,11 @@
 
 #define STRINGIFY(x) #x
 #define TOSTRING(x) STRINGIFY(x)
+
+int findIndex(int el, const int array[]){
+  for ( uint i = 0; i < NB_ELEMENTS(array); i++) {
+    if (el == array[i])
+      return i;
+  }
+  return -1;
+}