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- #include <SoftwareSerial.h>
- #include <stdio.h>
- int ledONE = 9;
- int ledTWO = 2;
- int ledTHREE = 3;
- int bluetoothTX = 11 ;
- int bluetoothRX = 10 ;
- char receivedValue ;
- SoftwareSerial bluetooth ( bluetoothTX, bluetoothRX );
- void setup()
- {
- Serial.begin(9600);
- Serial.println("console> ");
- pinMode(ledONE, OUTPUT);
- pinMode(ledTWO, OUTPUT);
- pinMode(ledTHREE, OUTPUT);
- bluetooth.begin(115200);
- bluetooth.print("$$$");
- delay(100);
- bluetooth.println("U,9600,N");
- bluetooth.begin(9600);
- }
- void loop()
- {
- int brightness = 0;
- int led = 0;
- signed int data = 0;
- if( bluetooth.available() )
- {
- data = (int) bluetooth.read();
- Serial.println( data ); // for debugging, show received data
- if(data == 26)
- {
- allDown() ;
- }else if(data == 89)
- {
- allUp() ;
- }else{
- led = data / 100; // which led to select ?
- brightness = data % 100 ; // 0 - 25 , LED brightness ( * 10 ) for actual value
- switch(led) // Now, let's select the right led.
- {
- case 0 : setLEDthree ( brightness * 10 ); break;
- case 1 : setLEDone ( brightness * 10 ); break;
- case 2 : setLEDtwo ( brightness * 10 ); break;
- default : setLEDthree ( brightness * 10 ); break; // DO NOT know what to do ? must be led 3
- }
- }
- bluetooth.flush(); // IMPORTANT clean bluetooth stream, flush stuck data
- }
- }
- // SHUT DOWN all leds
- void allDown()
- {
- digitalWrite(ledONE, LOW ) ;
- digitalWrite(ledTWO, LOW ) ;
- digitalWrite(ledTHREE, LOW ) ;
- }
- // ALL up now :)
- void allUp()
- {
- digitalWrite(ledONE, HIGH) ;
- digitalWrite(ledTWO, HIGH ) ;
- digitalWrite(ledTHREE, HIGH ) ;
- }
- void setLEDone(int brighteness)
- {
- analogWrite(ledONE, brighteness ) ;
- }
- void setLEDtwo(int brighteness)
- {
- analogWrite(ledTWO, brighteness ) ;
- }
- void setLEDthree(int brighteness)
- {
- analogWrite(ledTHREE, brighteness ) ;
- }
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