void bringUpMqtt()
{
unsigned brokerConnectionTryLimit = 10;
unsigned count = 0;
// if we lost wifiConnectivity, we need to break out and
// go back to bringing up wifi
debugSerial.println("ARDUINO: Inside bringUpMqtt()");
if( !mqttClient.init() )
{
debugSerial.println("ARDUINO: Bad news, mqtt client failed to initialize correctly");
return;
}
while(!MqttClient::connected && (count < brokerConnectionTryLimit) )
{
debugSerial.println("ARDUINO: Connecting mqttClient");
mqttClient.connect(SERVER_NAME, SERVER_PORT, false);
// process 10 times
espMultipleProcess(10);
delay(100);
espMultipleProcess(10);
++count;
}
debugSerial.println("ARDUINO: Leaving bringUpMqtt()");
return;
}
// MQTT : Publish our message
void publishMessage()
{
if (mqtt.getConnectionState() != eTCS_Connected) {
startMqttClient(); // Auto reconnect
return;
}
// Read DHT22
TempAndHumidity th;
if(!dht.readTempAndHumidity(th)) {
return;
}
// Make JSON data
String message = "{\"temp\":";
message += th.temp;
message += ", \"humi\":";
message += th.humid;
message += "}";
// publish message
Serial.println("Let's publish message now!");
mqtt.publish("home/thirdroom/temp_humi", message, true); // retained message
displayTemp(message);
}
// Run MQTT client
void startMqttClient()
{
if(!mqtt.setWill("last/will","The connection from this device is lost:(", 1, true)) {
debugf("Unable to set the last will and testament. Most probably there is not enough memory on the device.");
}
mqtt.connect("esp8266");
mqtt.subscribe("main/status/#");
}
// Publish our message
void publishMessage()
{
if (mqtt.getConnectionState() != eTCS_Connected)
startMqttClient(); // Auto reconnect
Serial.println("Let's publish message now!");
mqtt.publish("main/frameworks/sming", "Hello friends, from Internet of things :)"); // or publishWithQoS
}
// Run MQTT client
void startMqttClient()
{
if(!mqtt.setWill("last/will","The connection from this device is lost:(", 1, true)) {
debugf("Unable to set the last will and testament. Most probably there is not enough memory on the device.");
}
mqtt.connect("ESP8266");
mqtt.subscribe("messagebox");
displayText("Start MQTT client...");
}
// Will be called when WiFi station was connected to AP
void connectOk()
{
Serial.println("I'm CONNECTED");
// Run MQTT client
mqtt.connect("esp8266");
mqtt.subscribe("main/status/#");
// Start publishing loop
procTimer.initializeMs(20 * 1000, publishMessage).start(); // every 20 seconds
}
bool sendCmd(Cmd cmd)
{
static const char* itemCurtains = "curtains";
static const char* itemLights = "overHeadLights";
static const char* itemPixels = "pixelWall";
static const char* itemFan = "fan";
// figure out which itemName we are talking to
const char* itemName = 0;
switch(cmd)
{
case e_cmdButton1:
itemName = itemCurtains;
break;
case e_cmdButton2:
itemName = itemLights;
break;
case e_cmdButton3:
itemName = itemPixels;
break;
case e_cmdButton4:
itemName = itemFan;
break;
default:
debugSerial.println("ARDUINO: Bad cmd passed to sendCmd()\n");
itemName = "";
return false;
}
char topic[32] = {0};
sprintf(topic, "/%s/%s", "bedroom1", itemName);
char mesg[64] = {0};
sprintf(mesg, "{\"command\":\"toggle\"}");
debugSerial.println("");
debugSerial.println(topic);
debugSerial.println(mesg);
// Send out command over mqtt protocol
mqttClient.publish(topic, mesg);
return true;
}
// Publish our message
void publishMessage()
{
Serial.println("Let's publish message now!");
mqtt.publish("main/frameworks/sming", "Hello friends, from Internet of things :)"); // or publishWithQoS
}
int MqttClient::staticSendPacket(void* userInfo, const void* buf, unsigned int count)
{
MqttClient* client = (MqttClient*)userInfo;
bool sent = client->send((const char*)buf, count);
return sent ? count : 0;
}
void loop(void)
{
if(!wifiConnected)
{
debugSerial.println("ARDUINO: Wifi down, bringing it up");
bringUpWifi();
espMultipleProcess(10);
delay(1000);
}
if(!MqttClient::connected && wifiConnected)
{
debugSerial.println("ARDUINO: Mqtt down, bringing it up");
bringUpMqtt();
espMultipleProcess(10);
delay(1000);
}
if(MqttClient::connected && !wifiConnected)
{
debugSerial.println("ARDUINO: Bad state. mqtt somehow connected and wifi isn't");
debugSerial.println("ARDUINO: restarting state machine");
wifiConnected = false;
delay(1000);
}
// subscriptions!!!!
if(wifiConnected && MqttClient::connected)
{
debugSerial.println("ARDUINO: All systems online!");
// set subscriptions
mqttClient.subscribe();
espMultipleProcess(10);
delay(1000);
}
while(wifiConnected && MqttClient::connected)
{
// Throw some clock cycles at the esp
esp.process();
buttonPressed = (PINC & 0x0F);
if( buttonPressed )
{
// lastButtonPressed will be cleared after a time
if( buttonPressed!=lastButtonPressed )
{
if( buttonPressed == BTN_1)
{
ledsOff = !ledsOff;
forceLedUpdate = true;
debugSerial.println("Turning Button Leds");
debugSerial.println(ledsOff?"OFF":"ON");
//if( !sendCmd(e_cmdButton1) )
//{
// debugSerial.println("Error sending e_cmdButton1");
//}
}
else if( buttonPressed == BTN_2 )
{
if( !sendCmd(e_cmdButton2) )
{
debugSerial.println("ARDUINO: Error sending e_cmdButton2");
}
}
else if( buttonPressed == BTN_3 )
{
if( !sendCmd(e_cmdButton3) )
{
debugSerial.println("ARDUINO: Error sending e_cmdButton3");
}
}
else if( buttonPressed == BTN_4 )
{
if( !sendCmd(e_cmdButton4) )
{
debugSerial.println("ARDUINO: Error sending e_cmdButton4");
}
}
espMultipleProcess(5);
delay(debounceDelay); //debounce delay
// save lastButtonPressed to check against next time
lastButtonPressed = buttonPressed;
buttonPressed = 0x00;
}
else
{
// They pressed the same button again, restart the counter
lastButtonPressExpireTimer = 0;
}
}
if(lastButtonPressed)
{
++lastButtonPressExpireTimer;
}
// After a while, we clear the lastButtonPressed
// The point is to prevent a user holding a button
if(lastButtonPressExpireTimer > lastButtonPressTimeout)
{
lastButtonPressed = 0x00;
lastButtonPressExpireTimer = 0;
}
++cyclesCount;
if( (cyclesCount >= ledUpdateWaitCycles) || forceLedUpdate )
{
updateButtonLeds(ledsOff);
cyclesCount = 0;
forceLedUpdate = false;
}
}
}