added initial support for ESP32

Author: alvarolb

README.md

@@ -9,6 +9,7 @@ It supports multiple network interfaces like Ethernet, Wifi, and GSM. So you can
 * Arduino Yun
 * Arduino MKR1000 (With SSL/TLS)
 * Any ESP8266 variant like NodeMCU
+* ESP32
 * Texas Instruments CC3200
 * SeeedStudio LinkIt ONE (Both GPRS and WiFi)
 

examples/ESP32/ESP32.ino

@@ -0,0 +1,32 @@
+#include <WiFi.h>
+#include <ThingerESP32.h>
+
+#define USERNAME "your_user_name"
+#define DEVICE_ID "your_device_id"
+#define DEVICE_CREDENTIAL "your_device_credential"
+
+#define SSID "your_wifi_ssid"
+#define SSID_PASSWORD "your_wifi_ssid_password"
+
+// define your board pin here
+#define LED_PIN 16
+
+ThingerESP32 thing(USERNAME, DEVICE_ID, DEVICE_CREDENTIAL);
+
+void setup() {
+  pinMode(LED_PIN, OUTPUT);
+
+  thing.add_wifi(SSID, SSID_PASSWORD);
+
+  // digital pin control example (i.e. turning on/off a light, a relay, configuring a parameter, etc)
+  thing["led"] << digitalPin(LED_PIN);
+
+  // resource output example (i.e. reading a sensor value)
+  thing["millis"] >> outputValue(millis());
+
+  // more details at http://docs.thinger.io/arduino/
+}
+
+void loop() {
+  thing.handle();
+}

library.properties

@@ -1,9 +1,9 @@
 name=thinger.io
-version=2.5.7
+version=2.5.8
 author=Alvaro Luis Bustamante <[email protected]>
 maintainer=Thinger.io <[email protected]>
 sentence=Arduino library for the Thinger.io Internet of Things Platform.
-paragraph=Thinger.io is an open source platform for the Internet of Things. It will allow connecting your things or devices for remote sensing and actuating. Working with several devices like ESP8266, Arduino Ethernet, Arduino Wifi, Arduino MKR1000, Arduino Yun, Adafruit CC3000, Texas Instruments CC3200, ENC28J60, LinkIt ONE.
+paragraph=Thinger.io is an open source platform for the Internet of Things. It will allow connecting your things or devices for remote sensing and actuating. Working with several devices like ESP8266, ESP32, Arduino Ethernet, Arduino Wifi, Arduino MKR1000, Arduino Yun, Adafruit CC3000, Texas Instruments CC3200, ENC28J60, LinkIt ONE.
 category=Communication
 url=https://github.com/thinger-io/Arduino-Library
 architectures=*

src/ThingerClient.h

@@ -342,6 +342,11 @@ bool inverted_digital_pin(protoson::pson& in, int pin, bool& current_state){
 }
 #endif
 
+/*
+ * TODO ESP32 library does not implement analogWrite yet
+ */
+
+#ifndef ESP32
 void analog_pin(protoson::pson& in, int pin){
     static int current = in;
     if(in.is_empty()){
@@ -352,6 +357,7 @@ void analog_pin(protoson::pson& in, int pin){
         analogWrite(pin, current);
     }
 }
+#endif
 
 /**
  * AVR and ESP8266 supports reading the PIN state event if they are of output type. So they

src/ThingerESP32.h

@@ -0,0 +1,74 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2017 THINK BIG LABS SL
+// Author: [email protected] (Alvaro Luis Bustamante)
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#ifndef THINGER_ESP32_H
+#define THINGER_ESP32_H
+
+#include "ThingerWifi.h"
+
+/*
+ * TODO ESP32 library does not contain a WiFiClientSecure client yet, so disable TLS by default
+ * https://github.com/espressif/arduino-esp32/issues/101
+ */
+#define _DISABLE_TLS_
+#ifndef _DISABLE_TLS_
+class ThingerESP32 : public ThingerWifiClient<WiFiClientSecure>{
+#else
+class ThingerESP32 : public ThingerWifiClient<WiFiClient>{
+#endif
+
+public:
+    ThingerESP32(const char* user, const char* device, const char* device_credential) :
+            ThingerWifiClient(user, device, device_credential)
+    {}
+
+    ~ThingerESP32(){
+
+    }
+
+#ifndef _DISABLE_TLS_
+protected:
+    virtual bool connect_socket(){
+        if(client_.connect(THINGER_SERVER, THINGER_SSL_PORT)){
+            if(client_.verify(THINGER_TLS_FINGERPRINT, THINGER_TLS_HOST)){
+#ifdef _DEBUG_
+                THINGER_DEBUG("_SOCKET", "SSL/TLS Host Verification Succeed!");
+#endif
+            }else{
+#ifdef _DEBUG_
+                THINGER_DEBUG("_SOCKET", "SSL/TLS Host Verification Error!");
+#endif
+            }
+            return true;
+        }
+        return false;
+    }
+
+    virtual bool secure_connection(){
+        return true;
+    }
+#endif
+
+};
+
+#endif