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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| en:iot:examples:dimlight [2020/06/10 20:12] – heikopikner | en:iot:examples:dimlight [Unknown date] (current) – external edit (Unknown date) 127.0.0.1 | ||
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| Line 6: | Line 6: | ||
| {{: | {{: | ||
| - | Once the code has been uploaded the encoder controller will send messages about its increments and decrements via MQTT to the RGB module. RGB controller will then adjust it's brightness accordingly. Pressing the encoder button will turn the LED ON and OFF. | + | Once the code has been uploaded the encoder controller will send messages about its increments and decrements via MQTT to the RGB module. RGB controller will then adjust it's brightness accordingly. Pressing the encoder button will turn the LED OFF. |
| To upload the code you need to create two projects in PlatformIO environment. | To upload the code you need to create two projects in PlatformIO environment. | ||
| Line 12: | Line 12: | ||
| The following is the code for the controller with the RGB LED shield. Needed libaries: | The following is the code for the controller with the RGB LED shield. Needed libaries: | ||
| - | < | + | < |
| <code c> | <code c> | ||
| + | // Includes global variables and librarys that the RGB LED uses | ||
| #include < | #include < | ||
| #include < | #include < | ||
| #include < | #include < | ||
| - | // Change it according to the real name of the red IoT module where | + | #define WIFI_NAME " |
| - | // DHT shield | + | #define WIFI_PASSWORD " |
| - | # | + | |
| + | // Change it according to the real name of the ESP microcontroler | ||
| + | # | ||
| // RGB LED pin conficuration | // RGB LED pin conficuration | ||
| - | #define PIN D2 | + | #define PIN D2 |
| // Create an object for RGB LED | // Create an object for RGB LED | ||
| Line 29: | Line 32: | ||
| // Variable to store led brightness | // Variable to store led brightness | ||
| - | int light = 0; | + | int light; |
| //Increases or decreases light intensity variable. Keeps it between 0 and 250. | //Increases or decreases light intensity variable. Keeps it between 0 and 250. | ||
| Line 37: | Line 40: | ||
| if(msg==" | if(msg==" | ||
| { | { | ||
| - | light+=1; | + | light+=1; |
| } | } | ||
| else if (msg==" | else if (msg==" | ||
| { | { | ||
| - | light-=1; | + | light-=1; |
| } | } | ||
| if(msg==" | if(msg==" | ||
| { | { | ||
| if(light) | if(light) | ||
| - | light=0; | + | light=0; |
| } | } | ||
| if(light> | if(light> | ||
| { | { | ||
| - | light=250; | + | light=250; |
| } | } | ||
| else if(light< | else if(light< | ||
| { | { | ||
| - | light=0; | + | light=0; |
| } | } | ||
| } | } | ||
| - | // Message received | + | // Message received |
| void iot_received(String topic, String msg) | void iot_received(String topic, String msg) | ||
| { | { | ||
| - | // Calculate brightness | + | |
| - | lightIntensity(msg); | + | { |
| + | | ||
| + | lightIntensity(msg); | ||
| - | | + | |
| - | pixels.setPixelColor(0, | + | pixels.setPixelColor(0, |
| - | // This sends the updated pixel color to the hardware. | + | // This sends the updated pixel color to the hardware. |
| - | pixels.show(); | + | pixels.show(); |
| + | } | ||
| } | } | ||
| Line 77: | Line 83: | ||
| Serial.println(" | Serial.println(" | ||
| // Subscribe to get enc message | // Subscribe to get enc message | ||
| - | iot.subscribe(DHT_TOPIC"/ | + | iot.subscribe(ENC_TOPIC"/ |
| // Send message to MQTT server to show that connection is established | // Send message to MQTT server to show that connection is established | ||
| iot.log(" | iot.log(" | ||
| Line 85: | Line 91: | ||
| { | { | ||
| // Initialize serial port and send message | // Initialize serial port and send message | ||
| - | Serial.begin(115200); | + | Serial.begin(115200); |
| Serial.println(" | Serial.println(" | ||
| - | // print IoT json config to serial | + | |
| - | iot.printConfig(); | + | // |
| + | iot.printConfig(); | ||
| + | iot.setup(); // Initialize IoT library | ||
| - | | + | |
| - | iot.setup(); | + | |
| - | + | ||
| - | | + | |
| - | pixels.begin(); | + | |
| // Turn all LED-s off | // Turn all LED-s off | ||
| Line 104: | Line 108: | ||
| void loop() | void loop() | ||
| { | { | ||
| - | // IoT behind the plan work, it should be periodically called | + | |
| - | iot.handle(); | + | delay(10); |
| - | delay(10); | + | |
| } | } | ||
| </ | </ | ||
| - | |||
| The following is the code for the controller module with the sensor (encoder) shield. | The following is the code for the controller module with the sensor (encoder) shield. | ||
| - | < | + | < |
| <code c> | <code c> | ||
| + | // Includes global variables and librarys that the encoder uses | ||
| #include < | #include < | ||
| #include < | #include < | ||
| #include < | #include < | ||
| + | |||
| + | #define WIFI_NAME " | ||
| + | #define WIFI_PASSWORD " | ||
| // Encoder conficuration | // Encoder conficuration | ||
| Line 129: | Line 135: | ||
| // Variable to store switch state | // Variable to store switch state | ||
| bool switchState; | bool switchState; | ||
| - | |||
| - | // Message received | ||
| - | void iot_received(String topic, String msg) | ||
| - | { | ||
| - | |||
| - | } | ||
| // Function started after the connection to the server is established. | // Function started after the connection to the server is established. | ||
| Line 148: | Line 148: | ||
| { | { | ||
| // Initialize serial port and send message | // Initialize serial port and send message | ||
| - | Serial.begin(115200); | + | Serial.begin(115200); |
| Serial.println(" | Serial.println(" | ||
| - | // print IoT json config to serial | + | //iot.setConfig(" |
| - | iot.printConfig(); | + | |
| - | + | | |
| - | // Initialize | + | iot.setup(); |
| - | iot.setup(); | + | |
| } | } | ||
| void loop() | void loop() | ||
| { | { | ||
| - | // IoT behind the plan work, it should be periodically called | ||
| - | iot.handle(); | ||
| - | delay(5); | + | |
| + | |||
| + | | ||
| // Handle button. The coder button is connected to analog input. | // Handle button. The coder button is connected to analog input. | ||
| - | // If the encoder button is pressed, it will send " | + | // If the encoder button is pressed, it will send " |
| if(analogRead(A0) < 100) | if(analogRead(A0) < 100) | ||
| { | { | ||
| if(switchState == false) | if(switchState == false) | ||
| { | { | ||
| - | String msg = String(1); | ||
| iot.publishMsg(" | iot.publishMsg(" | ||
| switchState = true; | switchState = true; | ||
| } | } | ||
| - | | + | } |
| + | | ||
| + | { | ||
| + | if(switchState == true) | ||
| { | { | ||
| - | | + | switchState = false; |
| - | { | + | |
| - | | + | |
| - | } | + | |
| } | } | ||
| } | } | ||
| Line 186: | Line 184: | ||
| // Encoder behind the plan work, it should be periodically called | // Encoder behind the plan work, it should be periodically called | ||
| encoder.service(); | encoder.service(); | ||
| - | | + | |
| static int16_t oldPosition, | static int16_t oldPosition, | ||
| Line 192: | Line 190: | ||
| newPosition += encoder.getValue(); | newPosition += encoder.getValue(); | ||
| - | // If the encoder is rotated clockwise, | + | // If the encoder is rotated clockwise, it will send " |
| - | // | + | // If it the encoder |
| if(newPosition > oldPosition) | if(newPosition > oldPosition) | ||
| { | { | ||
| - | iot.publishMsg(" | + | iot.publishMsg(" |
| } | } | ||
| else if (newPosition < oldPosition) | else if (newPosition < oldPosition) | ||
| { | { | ||
| - | iot.publishMsg(" | + | iot.publishMsg(" |
| } | } | ||
| - | oldPosition = newPosition; | + | oldPosition = newPosition; |
| } | } | ||
| + | |||
| </ | </ | ||
