Oled display example

examples/LED/LED.ino

@@ -1,39 +1,45 @@
 /**
- * Simple server compliant with Mozilla's proposed WoT API
- * Originally based on the HelloServer example
- * Tested on ESP8266, ESP32, Arduino boards with WINC1500 modules (shields or
- * MKR1000)
- *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
+#define LARGE_JSON_BUFFERS 1
+
 #include <Arduino.h>
-#include "Thing.h"
-#include "WebThingAdapter.h"
+#include <Thing.h>
+#include <WebThingAdapter.h>
 
 // TODO: Hardcode your wifi credentials here (and keep it private)
-const char *ssid = "public";
+const char *ssid = "";
 const char *password = "";
 
 #if defined(LED_BUILTIN)
-const int ledPin = LED_BUILTIN;
+const int lampPin = LED_BUILTIN;
 #else
-const int ledPin = 13; // manually configure LED pin
+const int lampPin = 13; // manually configure LED pin
 #endif
 
+ThingActionObject *action_generator(DynamicJsonDocument *);
+
 WebThingAdapter *adapter;
 
-const char *ledTypes[] = {"OnOffSwitch", "Light", nullptr};
-ThingDevice led("led", "Built-in LED", ledTypes);
-ThingProperty ledOn("on", "", BOOLEAN, "OnOffProperty");
+const char *lampTypes[] = {"OnOffSwitch", "Light", nullptr};
+ThingDevice lamp("lamp123", "My Lamp", lampTypes);
+
+ThingProperty lampOn("state", "Whether the lamp is turned on", BOOLEAN,
+                     "OnOffProperty");
 
-bool lastOn = false;
+StaticJsonDocument<256> toggleInput;
+JsonObject toggleInputObj = toggleInput.to<JsonObject>();
+ThingAction toggle("toggle", "Toggle", "toggle the lamp on/off",
+                 "ToggleAction", &toggleInputObj, action_generator);
+
+bool lastOn = true;
 
 void setup(void) {
-  pinMode(ledPin, OUTPUT);
-  digitalWrite(ledPin, HIGH);
+  pinMode(lampPin, OUTPUT);
+  digitalWrite(lampPin, HIGH);
   Serial.begin(115200);
   Serial.println("");
   Serial.print("Connecting to \"");
@@ -46,40 +52,80 @@ void setup(void) {
   Serial.println("");
 
   // Wait for connection
-  bool blink = true;
   while (WiFi.status() != WL_CONNECTED) {
     delay(500);
     Serial.print(".");
-    digitalWrite(ledPin, blink ? LOW : HIGH); // active low led
-    blink = !blink;
   }
-  digitalWrite(ledPin, HIGH); // active low led
 
   Serial.println("");
   Serial.print("Connected to ");
   Serial.println(ssid);
   Serial.print("IP address: ");
   Serial.println(WiFi.localIP());
-  adapter = new WebThingAdapter("w25", WiFi.localIP());
+  adapter = new WebThingAdapter("led-lamp", WiFi.localIP());
+
+  lamp.description = "A web connected lamp";
 
-  led.addProperty(&ledOn);
-  adapter->addDevice(&led);
+  lampOn.title = "On/Off";
+  lamp.addProperty(&lampOn);
+
+  toggleInputObj["type"] = "object";
+    JsonObject stateInputProperties =
+      toggleInputObj.createNestedObject("properties");
+  JsonObject stateInput =
+      stateInputProperties.createNestedObject("state");
+  stateInput["type"] = "boolean";
+  lamp.addAction(&toggle);
+
+  adapter->addDevice(&lamp);
   adapter->begin();
+
   Serial.println("HTTP server started");
   Serial.print("http://");
   Serial.print(WiFi.localIP());
   Serial.print("/things/");
-  Serial.println(led.id);
+  Serial.println(lamp.id);
+
+  // set initial values
+  ThingPropertyValue initialOn = {.boolean = true};
+  lampOn.setValue(initialOn);
+  (void)lampOn.changedValueOrNull();
+
 }
 
 void loop(void) {
   adapter->update();
-  bool on = ledOn.getValue().boolean;
-  digitalWrite(ledPin, on ? LOW : HIGH); // active low led
-  if (on != lastOn) {
-    Serial.print(led.id);
-    Serial.print(": ");
-    Serial.println(on);
+  bool on = lampOn.getValue().boolean;
+  if (on) {
+    digitalWrite(lampPin, HIGH);
+  } else {
+    digitalWrite(lampPin, LOW);
   }
-  lastOn = on;
+
+  if (lastOn != on) {
+    lastOn = on;
+  }
+}
+
+void do_toggle(const JsonVariant &input) {
+  Serial.println("toggle call");
+
+  JsonObject inputObj = input.as<JsonObject>();
+  bool state = inputObj["state"];
+
+  Serial.print("state: ");
+  Serial.println(state);
+
+  if (state) {
+    digitalWrite(lampPin, HIGH);
+  } else {
+    digitalWrite(lampPin, LOW);
+  }
+
+  ThingDataValue value = {.boolean = state};
+  lampOn.setValue(value);
+}
+
+ThingActionObject *action_generator(DynamicJsonDocument *input) {
+  return new ThingActionObject("toggle", input, do_toggle, nullptr);
 }