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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| en:iot:examples:relay [2017/12/18 11:08] – New pictures tomykalm | en:iot:examples:relay [Unknown date] (current) – external edit (Unknown date) 127.0.0.1 | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ====== | + | ====== |
| Relay module must be connected to controller module or with sensor module. | Relay module must be connected to controller module or with sensor module. | ||
| Line 11: | Line 11: | ||
| {{: | {{: | ||
| - | The example code above shows if something is connected to the relay module | + | Needed libraries: |
| - | < | + | <code> |
| + | The example code below shows if something is connected to the relay module | ||
| + | <code c> | ||
| + | // Includes global variables and librarys that the relay shield uses | ||
| #include < | #include < | ||
| #include < | #include < | ||
| - | #define RELAY_PIN 5 | + | #define MODULE_TOPIC " |
| + | #define WIFI_NAME " | ||
| + | #define WIFI_PASSWORD " | ||
| + | |||
| + | #define RELAY_PIN 5 // The relay has been connected to pin 5 (D1) | ||
| // If message received switch relay | // If message received switch relay | ||
| Line 26: | Line 33: | ||
| Serial.print(" | Serial.print(" | ||
| Serial.println(msg); | Serial.println(msg); | ||
| - | if(msg == " | ||
| - | { | ||
| - | digitalWrite(RELAY_PIN, | ||
| - | } | ||
| - | if(msg == " | + | if(topic == MODULE_TOPIC) |
| { | { | ||
| - | digitalWrite(RELAY_PIN, | + | |
| + | if(msg == " | ||
| + | { | ||
| + | digitalWrite(RELAY_PIN, | ||
| + | } | ||
| + | // If message received and it is 0, then switch relay on | ||
| + | if(msg == " | ||
| + | { | ||
| + | | ||
| + | } | ||
| } | } | ||
| } | } | ||
| + | // Function started after the connection to the server is established. | ||
| void iot_connected() | void iot_connected() | ||
| { | { | ||
| Serial.println(" | Serial.println(" | ||
| - | iot.subscribe(" | + | iot.subscribe(MODULE_TOPIC); // subscribe to topic relay |
| iot.log(" | iot.log(" | ||
| } | } | ||
| Line 46: | Line 59: | ||
| void setup() | void setup() | ||
| { | { | ||
| - | Serial.begin(115200); | + | Serial.begin(115200); |
| Serial.println(" | Serial.println(" | ||
| + | | ||
| + | // | ||
| + | // | ||
| + | iot.printConfig(); | ||
| + | iot.setup(); | ||
| - | | + | pinMode(RELAY_PIN, |
| - | iot.setup(); | + | |
| - | | + | |
| } | } | ||
| void loop() | void loop() | ||
| { | { | ||
| - | iot.handle(); | + | iot.handle(); |
| - | delay(200); | + | delay(200); |
| } | } | ||
| - | |||
| </ | </ | ||
