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426
uno-stats-monitor/uno_receiver.ino
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426
uno-stats-monitor/uno_receiver.ino
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@@ -0,0 +1,426 @@
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/*
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* UNO Monitor Receiver (4-bit LCD Version)
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* Kidacro <kidacro@archamedis.net>
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*
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* Waits for input over serial connection and displays on LCD & LED
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* Receives IR events and reports them over serial connection to a daemon
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*
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* Input Schema:
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* Start char is: '#'
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* End char is: '@'
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* 2nd char denotes which line number/mode to use
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*
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* Example:
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* Line 1: #1Archamedis Status@
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* Line 2: #299% free / etc.@
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* LAVG 3: #324@
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*
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* Output Schema:
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* Multimedia Controls use single characters to denote which button was pressed
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* P power
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* M mute
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* m mode
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* p pause/play
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* b back
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* f forward
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* e eq
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* - vol down
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* + vol up
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* r return
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* u usb scan
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* 0 number 0
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* 1 number 1
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* 2 number 2
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* 3 number 3
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* 4 number 4
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* 5 number 5
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* 6 number 6
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* 7 number 7
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* 8 number 8
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* 9 number 9
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* R repeat
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* Z other button pressed
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*/
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#include <LiquidCrystal.h>
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#include <LedControl.h>
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#include <IRremote.h>
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/* LCD Pinout:
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* LCD RS pin to digital pin 12
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* LCD Enable pin to digital pin 11
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* LCD D4 pin to digital pin 5
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* LCD D5 pin to digital pin 4
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* LCD D6 pin to digital pin 3
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* LCD D7 pin to digital pin 2
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* LCD R/W pin to ground
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* LCD VSS pin to ground
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* LCD VCC pin to 5V
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* 10K resistor:
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* ends to +5V and ground
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* wiper to LCD VO pin (pin 3)
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*/
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/* LED Pinout:
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* LED DataIn(DIN) to digital pin 10
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* LED LOAD(CS) to digital pin 9
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* LED CLK to digital pin 8
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* LED VSS pin to 5V
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* LED GND to ground
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*/
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/* IR Pinout
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* IR Signal to digital pin 13
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* IR VSS pin to 5V
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* IR GND to ground
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*/
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// LCD vars
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const int LCDRS = 12, LCDEN = 11, LCDD4 = 5, LCDD5 = 4, LCDD6 = 3, LCDD7 = 2;
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int LCDLength = 16;
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int LCDDelay = 5;
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LiquidCrystal LCD(LCDRS, LCDEN, LCDD4, LCDD5, LCDD6, LCDD7);
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// LED vars
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const int LEDIN = 10, LEDCS = 9, LEDCLK = 8;
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LedControl LEDlc=LedControl(LEDIN,LEDCLK,LEDCS,1);
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int LEDBrightness = 1; // default = 8 / max = 15
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unsigned long LEDdelaytime1=3;
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unsigned long LEDdelaytime2=3;
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// IR vars
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const int IRSIG = 13;
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IRrecv Irrecv(IRSIG);
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decode_results IRresults;
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// Serial vars
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const byte SERnumChars = 32;
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char SERrecvChars[SERnumChars];
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boolean SERnewData = false;
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// Debugging
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boolean DEBUG = false;
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void LEDSetup(void)
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{
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/*
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The MAX72XX is in power-saving mode on startup,
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we have to do a wakeup call
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*/
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LEDlc.shutdown(0,false);
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/* Set the brightness */
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LEDlc.setIntensity(0,LEDBrightness);
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/* and clear the display */
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LEDlc.clearDisplay(0);
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}
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void LcdSetup(void)
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{
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// set up the LCD's number of columns and rows:
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LCD.begin(LCDLength, 2);
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// clear
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LCD.clear();
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}
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void IRSetup(void)
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{
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// start the receiver
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Irrecv.enableIRIn();
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}
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void LcdL1(boolean wipe = false)
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{
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delay(LCDDelay);
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LCD.setCursor(0, 0); // Define the cursor position as the 1st position of the 1st line
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if(wipe) {
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LcdWrite(" "); // 16 spaces for a blank line
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LCD.setCursor(0, 0);
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}
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delay(LCDDelay);
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}
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void LcdL2(boolean wipe = false)
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{
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delay(LCDDelay);
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LCD.setCursor(0, 1); // Define the cursor position as the 1st position of the 2nd line
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if(wipe) {
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LcdWrite(" "); // 16 spaces for a blank line
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LCD.setCursor(0, 1);
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}
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delay(LCDDelay);
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}
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void LcdIntro(void)
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{
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// Print a "waiting" message to the LCD.
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LcdL1();
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LCD.print("Starting Up...");
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LcdL2();
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LCD.print("Waiting for data");
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}
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void LcdCls(void)
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{
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delay(LCDDelay);
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LCD.clear(); // The screen is empty
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LcdL1(); // the cursor position is zeroed
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delay(LCDDelay);
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}
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/*
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TODO: returns starting position of text or 0 for 1st position
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void LcdCenter(int mylen)
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{
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int mypos = 0;
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return mypos;
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}*/
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void LcdWrite(String mymessage)
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{
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int i = 0;
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unsigned int mylen = mymessage.length();
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// trunicate string to lcd line length
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if(mylen > LCDLength) {
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mylen = LCDLength;
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}
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// Debug input and length
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if(DEBUG) {
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Serial.println("\n\nString: ");
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Serial.println(mymessage);
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Serial.println(mymessage.length());
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}
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// Output string
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//LCD.print(mymessage);
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// Output character by character
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for(i=0; i < mylen; i++) {
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char c = mymessage[i];
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if(c != '\b') {
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delay(10);
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LCD.print(c);
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delay(10);
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}
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}
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}
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void LedIntro() {
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for(int row=0;row<8;row++) {
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for(int col=0;col<8;col++) {
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delay(LEDdelaytime2);
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LEDlc.setLed(0,row,col,true);
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delay(LEDdelaytime2);
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for(int i=0;i<col;i++) {
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LEDlc.setLed(0,row,col,false);
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delay(LEDdelaytime2);
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LEDlc.setLed(0,row,col,true);
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delay(LEDdelaytime2);
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}
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}
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}
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LEDlc.clearDisplay(0);
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}
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void LedShowLoad(const char *load)
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{
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int myload = atoi(load);
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int segments = 0;
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if(DEBUG) {
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Serial.print("My input load: ");
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Serial.println(load);
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Serial.print("My calculated load: ");
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Serial.println(myload);
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}
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LEDlc.clearDisplay(0);
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/*
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Armchair math begin:
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100% = 8
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87.5% = 7
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75% = 6
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62.5% = 5
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50% = 4
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37.5% = 3
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25% = 2
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12.5% = 1
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0% = 0
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*/
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if(myload < 12) segments = 0;
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if(myload >= 12) segments = 1;
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if(myload >= 25) segments = 2;
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if(myload >= 37) segments = 3;
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if(myload >= 50) segments = 4;
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if(myload >= 62) segments = 5;
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if(myload >= 75) segments = 6;
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if(myload >= 87) segments = 7;
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if(myload >= 95) segments = 8;
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// segments as rows
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for(int row=0;row<8;row++) {
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for(int col=0;col<segments;col++) {
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delay(LEDdelaytime2);
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LEDlc.setLed(0,row,col,true);
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delay(LEDdelaytime2);
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for(int i=0;i<col;i++) {
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LEDlc.setLed(0,row,col,false);
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delay(LEDdelaytime2);
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LEDlc.setLed(0,row,col,true);
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delay(LEDdelaytime2);
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}
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}
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}
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}
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// IR translator
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void IRtranslate()
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{
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switch(IRresults.value) {
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case 0xFFA25D: Serial.println("P"); break; // power
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case 0xFFE21D: Serial.println("M"); break; // mute
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case 0xFF629D: Serial.println("m"); break; // mode
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case 0xFF22DD: Serial.println("p"); break; // pause/play
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case 0xFF02FD: Serial.println("b"); break; // back
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case 0xFFC23D: Serial.println("f"); break; // forward
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case 0xFFE01F: Serial.println("e"); break; // eq
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case 0xFFA857: Serial.println("-"); break; // vol down
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case 0xFF906F: Serial.println("+"); break; // vol up
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case 0xFF9867: Serial.println("r"); break; // return
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case 0xFFB04F: Serial.println("u"); break; // usb scan
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case 0xFF6897: Serial.println("0"); break; // number 0
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case 0xFF30CF: Serial.println("1"); break; // number 1
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case 0xFF18E7: Serial.println("2"); break; // number 2
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case 0xFF7A85: Serial.println("3"); break; // number 3
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case 0xFF10EF: Serial.println("4"); break; // number 4
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case 0xFF38C7: Serial.println("5"); break; // number 5
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case 0xFF5AA5: Serial.println("6"); break; // number 6
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case 0xFF42BD: Serial.println("7"); break; // number 7
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case 0xFF4AB5: Serial.println("8"); break; // number 8
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case 0xFF52AD: Serial.println("9"); break; // number 9
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case 0xFFFFFFFF: Serial.println("R");break; // repeat
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default:
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Serial.println("Z"); // other button
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}
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// Do not get immediate repeat keypress
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delay(500);
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}
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// serial receive
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void SERrecv()
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{
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static boolean recvInProgress = false;
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static byte ndx = 0;
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char startMarker = '#';
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char endMarker = '@';
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char rc;
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while (Serial.available() > 0 && SERnewData == false) {
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// process serial signal
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rc = Serial.read();
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if(recvInProgress == true) {
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if(rc != endMarker) {
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SERrecvChars[ndx] = rc;
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ndx++;
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if (ndx >= SERnumChars) {
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ndx = SERnumChars - 1;
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}
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}
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else {
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SERrecvChars[ndx] = '\0'; // terminate the string
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recvInProgress = false;
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ndx = 0;
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SERnewData = true;
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}
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}
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else if(rc == startMarker) {
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recvInProgress = true;
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}
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}
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}
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// process new data
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// data schema:
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// 1st character denotes function:
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// 1 - print on 1st line as is
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// 2 - print on 2nd line as is
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// 3 - display load on LCD matrix
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// 4 - set a setting
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void procNewData()
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{
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if(SERnewData == true) {
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if(DEBUG) {
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Serial.print("Receiver says: ");
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Serial.println(SERrecvChars);
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}
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// Chooser
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// dev: we have to define 1st character (line number) as BS and when printing, search for that BS character to skip printing that 1 character
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// print on line 1
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if(SERrecvChars[0] == '1') {
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LcdL1(true);
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SERrecvChars[0] = '\b';
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LcdWrite(SERrecvChars);
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}
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// print on line 2
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else if(SERrecvChars[0] == '2') {
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LcdL2(true);
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SERrecvChars[0] = '\b';
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LcdWrite(SERrecvChars);
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}
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// show load on led matrix
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else if(SERrecvChars[0] == '3') {
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SERrecvChars[0] = ' ';
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LedShowLoad(SERrecvChars);
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}
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SERnewData = false;
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}
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}
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void setup (void)
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{
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// init HW
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LcdSetup();
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LEDSetup();
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IRSetup();
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// open serial port
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Serial.begin(9600);
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// display intros
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LcdIntro();
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LedIntro();
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}
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// main()
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void loop (void)
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{
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// process IR signal
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if(Irrecv.decode(&IRresults)) {
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IRtranslate();
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Irrecv.resume(); // receive the next value
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}
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// process serial input
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SERrecv();
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// process new data
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procNewData();
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}
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