Data Firmware

Simple example of Arduino/Genuino 101, to read button (on pin 6) and control LED (on pin 7) accodingly.

Connection:

_101_button_led.ino

/*
 * Arduino/Genuino 101 example
 * to read button and turn ON/OFF LED accordingly
 */

int LED = 7;
int BTN = 6;

void setup() {
 pinMode(LED, OUTPUT);
 pinMode(BTN, INPUT_PULLUP);

 //indicate program start
 pinMode(13, OUTPUT);
 digitalWrite(13, LOW);
 delay(200);
 digitalWrite(13, HIGH);
 delay(1000);
 digitalWrite(13, LOW);
}

void loop() {
 digitalWrite(LED, !digitalRead(BTN));
 delay(100);
}

Arduino example run on Mega 2560, read string from Serial port, and display on 3.2" 480 x 320 TFT LCD Shield usin UTFT library. The sting is limited to 30 characters on each line.

/*
 * Example run on Arduino Mega 2560 to read string from Serial,
 * then display on 3.2" 480 x 320 TFT LCD Shield
 * 
 * http://arduino-er.blogspot.com/search/label/3.2%22%20480%20x%20320%20TFT%20LCD%20Shield
*/

#include <UTFT.h>

extern uint8_t BigFont[];

UTFT myGLCD(CTE32HR,38,39,40,41);

const int NumOfRow = 20;
const int HeightOfRow = 16;
const int CharPerRow = 30;

String buffer[NumOfRow];

void setup()
{
 Serial.begin(57600);
 myGLCD.InitLCD();
 myGLCD.clrScr();

 myGLCD.setColor(255, 255, 255);
 myGLCD.setBackColor(0, 0, 0);

 myGLCD.setFont(BigFont);

 myGLCD.print("Open Serial Monitor,", LEFT, 0);
 myGLCD.print("to enter something.", LEFT, HeightOfRow);
 
 initBuffer();
}

void loop()
{
 String stringIn = Serial.readStringUntil( );
 Serial.print(".");
 if(!stringIn.equals("")){
 Serial.print("*");
 String stringToIns = stringIn.substring(0, CharPerRow);
 insert(stringToIns);
 Serial.println(stringToIns);
 printBuffer();
 }
 
}

void initBuffer(){
 for(int i=0; i<NumOfRow; i++){
 buffer[i] = "";
 }
}

void insert(String ins){
 for(int i=0; i<NumOfRow-1; i++){
 buffer[i] = buffer[i+1];
 }
 buffer[NumOfRow-1] = ins;
}

void printBuffer(){
 myGLCD.clrScr();
 for(int i=0; i<NumOfRow; i++){
 myGLCD.print(buffer[i], LEFT, i*HeightOfRow);
 }
}