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fan_control.ino
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fan_control.ino
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// This #include statement was automatically added by the Particle IDE.
#include "MQTT/MQTT.h"
/******************************************************************************
* @file roomba spark firmware
* @author Pierre Barralon - INRIA
* @date 28 oct. 2015
*
* @brief Spark core firmware controlling a fan over WIFI
*
* Project : fan_wifi - https://github.com/OpHaCo/fan_wifi
* Contact: Rémi Pincent - [email protected]
*
* Revision History:
* Refer https://github.com/OpHaCo/fan_wifi
*
* LICENSING
* fan_wifi (c) by Pierre Barralon
*
* fan_wifi is licensed under a
* Creative Commons Attribution 3.0 Unported License.
*
* You should have received a copy of the license along with this
* work. If not, see <http://creativecommons.org/licenses/by/3.0/>.
*****************************************************************************/
int vit1 = D3; //
int vit2 = D4; // commande relay
int vit3 = D5; //
int push1 = D0; //
int push2 = D1; // buton
int push3 = D2; //
typedef enum{
OFF = 0,
SPEED1 = 1,
SPEED2 = 2,
SPEED3 = 3
}EFanState;
void connectMQTT(void);
int fanControl(String command);
void stopFan(void);
void setFanSpeed1(void);
void setFanSpeed2(void);
void setFanSpeed3(void);
void returnstate(void);
bool isStateOk(bool state, int pin, int nbChecks);
void mqttCallback(char* topic, byte* payload, unsigned int length);
int statu = OFF;
//iot.eclipse.org
//byte mqttserver[] = { 198,41,30,241 };
// glados
byte mqttserver[] = { 192,168,130,22 };
MQTT mqttClient(mqttserver, 1883, mqttCallback);
char* mqttFanCmdsTopic = "fan/fanCmds";
char* mqttFanCloudTopic = "fan/particleCloud";
SYSTEM_MODE(MANUAL);
void connectMQTT(void)
{
Serial.println("connect mqtt");
mqttClient.connect("fan_spark");
if (mqttClient.isConnected())
{
// Now a single roomba can be connected at a time
mqttClient.subscribe(mqttFanCmdsTopic);
mqttClient.subscribe(mqttFanCloudTopic);
Serial.println("connected to mqtt");
}
}
void setup()
{
Serial.begin(115200);
Serial.println("Start fan control");
Particle.function("fanAPI", fanControl); // Expose the fan function to the Spark API
pinMode(vit1, OUTPUT); // sets the pins as output
pinMode(vit2, OUTPUT); // sets the pins as output
pinMode(vit3, OUTPUT); // sets the pins as output
pinMode(push1, INPUT_PULLUP); // sets the pins as input
pinMode(push2, INPUT_PULLUP); // sets the pins as input
pinMode(push3, INPUT_PULLUP); // sets the pins as input
Particle.variable("state", statu);
connectMQTT();
Particle.connect();
attachPushIt();
}
void loop()
{
static int loopIndex;
loopIndex++;
if (mqttClient.isConnected()) {
mqttClient.loop();
}
else
{
Serial.print("mqtt client not connected - id=");
Serial.println(loopIndex);
connectMQTT();
}
if(Particle.connected())
Particle.process();
}
bool isStateOk(bool state, int pin, int nbChecks) //check the input is stable
{
int compteur=0;
for (compteur=0 ; compteur < nbChecks ; compteur++){
if(digitalRead(pin) != state){
return false;
}
delay(1);
}
return true;
}
void push1Change(void) // interupt buton1 change
{
if(!isStateOk(digitalRead(push1), push1, 10)) //check push1 is stable
return;
if ((digitalRead(push1)==0) & (digitalRead(push2)==1) & (digitalRead(push3)==1)){
setFanSpeed1();
}
else if( (digitalRead(push1)==1) & (digitalRead(push2)==1) & (digitalRead(push3)==1) ){
stopFan();
}
}
void push2Change(void) // interupt buton2 change
{
if(!isStateOk(digitalRead(push2), push2, 10)) //check push2 is stable
return;
if ((digitalRead(push1)==1) & (digitalRead(push2)==0) & (digitalRead(push3)==1)){
setFanSpeed2();
}
else if( (digitalRead(push1)==1) & (digitalRead(push2)==1) & (digitalRead(push3)==1) ){
stopFan();
}
}
void push3Change(void) // interupt buton3 change
{
if(!isStateOk(digitalRead(push3), push3, 10)) //check push3 is stable
return;
if ((digitalRead(push1)==1) & (digitalRead(push2)==1) & (digitalRead(push3)==0)){
setFanSpeed3();
}
else if( (digitalRead(push1)==1) & (digitalRead(push2)==1) & (digitalRead(push3)==1) ){
stopFan();
}
}
void detachPushIt(void) //disable interupt function
{
detachInterrupt(push1);
detachInterrupt(push2);
detachInterrupt(push3);
}
void attachPushIt(void) //enable interupt function
{
attachInterrupt(push1, push1Change, CHANGE);
attachInterrupt(push2, push2Change, CHANGE);
attachInterrupt(push3, push3Change, CHANGE);
}
void stopFan(void){ //poweroff function
digitalWrite(vit1, LOW);
digitalWrite(vit2, LOW);
digitalWrite(vit3, LOW);
statu = OFF;
}
void setFanSpeed1(void){ //set Speed1 function
detachPushIt(); //disable interupt
digitalWrite(vit1, HIGH);
digitalWrite(vit2, LOW);
digitalWrite(vit3, LOW);
statu = SPEED1;
delay(50);
attachPushIt(); //enable interupt
}
void setFanSpeed2(void){ //set Speed1 function
detachPushIt(); //disable interupt
digitalWrite(vit1, LOW);
digitalWrite(vit2, HIGH);
digitalWrite(vit3, LOW);
statu = SPEED2;
delay(50);
attachPushIt(); //enable interupt
}
void setFanSpeed3(void){ //set Speed1 function
detachPushIt(); //disable interupt
digitalWrite(vit1, LOW);
digitalWrite(vit2, LOW);
digitalWrite(vit3, HIGH);
statu = SPEED3;
delay(50);
attachPushIt(); //enable interupt
}
int fanControl(String command) //command wifi
{
if(command.substring(0,8) == "POWEROFF") //poweroff command
{
detachPushIt(); //disable interupt
stopFan();
delay(50);
attachPushIt(); //enable interupt
return 1;
}
if(command.substring(0,6) == "SPEED1") //set speed1 command
{
setFanSpeed1();
return 1;
}
if(command.substring(0,6) == "SPEED2") //set speed2 command
{
setFanSpeed2();
return 1;
}
if(command.substring(0,6) == "SPEED3") //set speed3 command
{
setFanSpeed3();
return 1;
}
else
{
return -1;
}
}
void mqttCallback(char* topic, byte* payload, unsigned int length) {
char p[length + 1];
memcpy(p, payload, length);
p[length] = NULL;
String message(p);
Serial.print("received MQTT payload ");
Serial.print(message);
Serial.print(" on topic ");
Serial.println(topic);
if(strcmp(topic, mqttFanCloudTopic) == 0)
{
if (message.equals("ENABLE") && !Particle.connected()){
Particle.connect();
}
else if(message.equals("DISABLE") && Particle.connected())
{
Particle.disconnect();
}
}
else if(strcmp(topic, mqttFanCmdsTopic) == 0)
{
fanControl(message);
}
}