You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
75 lines
1.7 KiB
75 lines
1.7 KiB
/*
|
|
Arduino TFT text example
|
|
|
|
This example demonstrates how to draw text on the
|
|
TFT with an Arduino. The Arduino reads the value
|
|
of an analog sensor attached to pin A0, and writes
|
|
the value to the LCD screen, updating every
|
|
quarter second.
|
|
|
|
This example code is in the public domain
|
|
|
|
Created 15 April 2013 by Scott Fitzgerald
|
|
|
|
http://www.arduino.cc/en/Tutorial/TFTDisplayText
|
|
|
|
*/
|
|
|
|
#include <TFT.h> // Arduino LCD library
|
|
#include <SPI.h>
|
|
|
|
// pin definition for the Uno
|
|
#define cs 10
|
|
#define dc 9
|
|
#define rst 8
|
|
|
|
// pin definition for the Leonardo
|
|
// #define cs 7
|
|
// #define dc 0
|
|
// #define rst 1
|
|
|
|
// create an instance of the library
|
|
TFT TFTscreen = TFT(cs, dc, rst);
|
|
|
|
// char array to print to the screen
|
|
char sensorPrintout[4];
|
|
|
|
void setup() {
|
|
|
|
// Put this line at the beginning of every sketch that uses the GLCD:
|
|
TFTscreen.begin();
|
|
|
|
// clear the screen with a black background
|
|
TFTscreen.background(0, 0, 0);
|
|
|
|
// write the static text to the screen
|
|
// set the font color to white
|
|
TFTscreen.stroke(255, 255, 255);
|
|
// set the font size
|
|
TFTscreen.setTextSize(2);
|
|
// write the text to the top left corner of the screen
|
|
TFTscreen.text("Sensor Value :\n ", 0, 0);
|
|
// ste the font size very large for the loop
|
|
TFTscreen.setTextSize(5);
|
|
}
|
|
|
|
void loop() {
|
|
|
|
// Read the value of the sensor on A0
|
|
String sensorVal = String(analogRead(A0));
|
|
|
|
// convert the reading to a char array
|
|
sensorVal.toCharArray(sensorPrintout, 4);
|
|
|
|
// set the font color
|
|
TFTscreen.stroke(255, 255, 255);
|
|
// print the sensor value
|
|
TFTscreen.text(sensorPrintout, 0, 20);
|
|
// wait for a moment
|
|
delay(250);
|
|
// erase the text you just wrote
|
|
TFTscreen.stroke(0, 0, 0);
|
|
TFTscreen.text(sensorPrintout, 0, 20);
|
|
}
|
|
|