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SAMD-Client_SINRIC.ino
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SAMD-Client_SINRIC.ino
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/****************************************************************************************************************************
SAMD-Client_SINRIC.ino
For SAMD21/SAMD51 with WiFiNINA module/shield.
Based on and modified from Gil Maimon's ArduinoWebsockets library https://github.com/gilmaimon/ArduinoWebsockets
to support STM32F/L/H/G/WB/MP1, nRF52 and SAMD21/SAMD51 boards besides ESP8266 and ESP32
The library provides simple and easy interface for websockets (Client and Server).
Example first created on: 10.05.2018
Original Author: Markus Sattler
Built by Khoi Hoang https://github.com/khoih-prog/Websockets2_Generic
Licensed under MIT license
*****************************************************************************************************************************/
/****************************************************************************************************************************
SAMD21/SAMD51 Websockets SINRIC Client
This sketch:
1. Connects to a WiFi network
2. Connects to a Websockets SINRIC server
3. Control the LED_BUILTIN using SINRIC/Alexa commands
Hardware:
For this sketch you only need a SAMD21/SAMD51 board.
*****************************************************************************************************************************/
#include "defines.h"
#define DEBUG_LOCAL 2
#include <WebSockets2_Generic.h>
#include <ArduinoJson.h> // https://arduinojson.org/ or install via Arduino library manager
using namespace websockets2_generic;
WebsocketsClient client;
#define HEARTBEAT_INTERVAL 300000 // 5 Minutes
bool isConnected = false;
uint64_t heartbeatTimestamp = 0;
uint64_t now = 0;
//To increase no of devices as needed
void turnOn(String deviceId)
{
if (deviceId == SINRIC_Device_ID_1) // Device ID of 1st device
{
#if (DEBUG_LOCAL > 1)
Serial.print("Turn on device id: ");
Serial.println(deviceId);
#endif
digitalWrite(LED_PIN, HIGH);
}
else
{
#if (DEBUG_LOCAL > 1)
Serial.print("Turn on for unknown device id: ");
Serial.println(deviceId);
#endif
}
}
//To increase no of devices as needed
void turnOff(String deviceId)
{
if (deviceId == SINRIC_Device_ID_1) // Device ID of 1st device
{
#if (DEBUG_LOCAL > 1)
Serial.print("Turn off Device ID: ");
Serial.println(deviceId);
#endif
digitalWrite(LED_PIN, LOW);
}
else
{
#if (DEBUG_LOCAL > 1)
Serial.print("Turn off for unknown device id: ");
Serial.println(deviceId);
#endif
}
}
void onEventsCallback(WebsocketsEvent event, String data)
{
(void) data;
if (event == WebsocketsEvent::ConnectionOpened)
{
if (!isConnected)
isConnected = true;
Serial.println("Connnection Opened");
}
else if (event == WebsocketsEvent::ConnectionClosed)
{
if (isConnected)
isConnected = false;
Serial.println("Connnection Closed");
}
else if (event == WebsocketsEvent::GotPing)
{
if (!isConnected)
isConnected = true;
Serial.println("Got a Ping!");
}
else if (event == WebsocketsEvent::GotPong)
{
if (!isConnected)
isConnected = true;
Serial.println("Got a Pong!");
}
}
void onMessagesCallback(WebsocketsMessage message)
{
String SINRIC_message = message.data();
Serial.print("Got Message: ");
Serial.println(SINRIC_message /*message.data()*/);
// Example payloads
// For Switch or Light device types
// {"deviceId": xxxx, "action": "setPowerState", value: "ON"} // https://developer.amazon.com/docs/device-apis/alexa-powercontroller.html
// For Light device type
// Look at the light example in github
#if (ARDUINOJSON_VERSION_MAJOR >= 6)
DynamicJsonDocument json(1024);
//auto deserializeError = deserializeJson(json, (char*)message.data());
auto deserializeError = deserializeJson(json, SINRIC_message);
if ( deserializeError )
{
Serial.println("JSON parseObject() failed");
return;
}
//serializeJson(json, Serial);
#else
DynamicJsonBuffer jsonBuffer;
// Parse JSON string
JsonObject& json = jsonBuffer.parseObject(SINRIC_message);
// Test if parsing succeeds.
if (!json.success())
{
Serial.println("JSON parseObject() failed");
return;
}
#endif
String deviceId = json ["deviceId"];
String action = json ["action"];
if (action == "setPowerState")
{
// Switch or Light
String value = json ["value"];
if (value == "ON")
{
turnOn(deviceId);
}
else
{
turnOff(deviceId);
}
}
}
void setup()
{
pinMode(LED_PIN, OUTPUT);
digitalWrite(LED_PIN, LOW);
Serial.begin(115200);
while (!Serial && millis() < 5000);
Serial.println("\nStarting SAMD-Client_SINRIC with WiFiNINA on " + String(BOARD_NAME));
Serial.println(WEBSOCKETS2_GENERIC_VERSION);
// check for the WiFi module:
if (WiFi.status() == WL_NO_MODULE)
{
Serial.println("Communication with WiFi module failed!");
// don't continue
return;
}
String fv = WiFi.firmwareVersion();
if (fv < WIFI_FIRMWARE_LATEST_VERSION)
{
Serial.println("Please upgrade the firmware");
}
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
// Connect to wifi
WiFi.begin(ssid, password);
// Wait some time to connect to wifi
for (int i = 0; i < 10 && WiFi.status() != WL_CONNECTED; i++)
{
Serial.print(".");
delay(1000);
}
if (WiFi.status() == WL_CONNECTED)
{
Serial.print("Connected to Wifi, IP address: ");
Serial.println(WiFi.localIP());
Serial.print("Connecting to WebSockets Server @");
Serial.println(websockets_server_host);
}
else
{
Serial.println("\nNo WiFi");
return;
}
// run callback when events are occuring
client.onMessage(onMessagesCallback);
// try to connect to Websockets server
client.addHeader("apikey", SINRIC_API_KEY);
client.setAuthorization("apikey", SINRIC_API_KEY);
bool connected = client.connect(websockets_server_host, websockets_server_port, "/");
if (connected)
{
Serial.println("Connected!");
}
else
{
Serial.println("Not Connected!");
}
}
void loop()
{
// let the websockets client check for incoming messages
if (client.available())
{
client.poll();
now = millis();
// Send heartbeat in order to avoid disconnections during ISP resetting IPs over night. Thanks @MacSass
if ((now - heartbeatTimestamp) > HEARTBEAT_INTERVAL)
{
heartbeatTimestamp = now;
client.send("H");
}
}
}