mirror of https://github.com/arendst/Tasmota.git
82 lines
2.3 KiB
Arduino
82 lines
2.3 KiB
Arduino
|
/***************************************************
|
||
|
|
This is a library for our I2C LED Backpacks
|
||
|
|
|
||
|
|
Designed specifically to work with the Adafruit LED 7-Segment backpacks
|
||
|
|
----> http://www.adafruit.com/products/881
|
||
|
|
----> http://www.adafruit.com/products/880
|
||
|
|
----> http://www.adafruit.com/products/879
|
||
|
|
----> http://www.adafruit.com/products/878
|
||
|
|
|
||
|
|
These displays use I2C to communicate, 2 pins are required to
|
||
|
|
interface. There are multiple selectable I2C addresses. For backpacks
|
||
|
|
with 2 Address Select pins: 0x70, 0x71, 0x72 or 0x73. For backpacks
|
||
|
|
with 3 Address Select pins: 0x70 thru 0x77
|
||
|
|
|
||
|
|
Adafruit invests time and resources providing this open source code,
|
||
|
|
please support Adafruit and open-source hardware by purchasing
|
||
|
|
products from Adafruit!
|
||
|
|
|
||
|
|
Written by Limor Fried/Ladyada for Adafruit Industries.
|
||
|
|
BSD license, all text above must be included in any redistribution
|
||
|
|
****************************************************/
|
||
|
|
|
||
|
|
#include <Wire.h> // Enable this line if using Arduino Uno, Mega, etc.
|
||
|
|
#include <Adafruit_GFX.h>
|
||
|
|
#include "Adafruit_LEDBackpack.h"
|
||
|
|
|
||
|
|
Adafruit_7segment matrix = Adafruit_7segment();
|
||
|
|
|
||
|
|
void setup() {
|
||
|
|
#ifndef __AVR_ATtiny85__
|
||
|
|
Serial.begin(9600);
|
||
|
|
Serial.println("7 Segment Backpack Test");
|
||
|
|
#endif
|
||
|
|
matrix.begin(0x70);
|
||
|
|
}
|
||
|
|
|
||
|
|
void loop() {
|
||
|
|
// try to print a number thats too long
|
||
|
|
matrix.print(10000, DEC);
|
||
|
|
matrix.writeDisplay();
|
||
|
|
delay(500);
|
||
|
|
|
||
|
|
// print a hex number
|
||
|
|
matrix.print(0xBEEF, HEX);
|
||
|
|
matrix.writeDisplay();
|
||
|
|
delay(500);
|
||
|
|
|
||
|
|
// print a floating point
|
||
|
|
matrix.print(12.34);
|
||
|
|
matrix.writeDisplay();
|
||
|
|
delay(500);
|
||
|
|
|
||
|
|
// print with print/println
|
||
|
|
for (uint16_t counter = 0; counter < 9999; counter++) {
|
||
|
|
matrix.println(counter);
|
||
|
|
matrix.writeDisplay();
|
||
|
|
delay(10);
|
||
|
|
}
|
||
|
|
|
||
|
|
// method #2 - draw each digit
|
||
|
|
uint16_t blinkcounter = 0;
|
||
|
|
boolean drawDots = false;
|
||
|
|
for (uint16_t counter = 0; counter < 9999; counter ++) {
|
||
|
|
matrix.writeDigitNum(0, (counter / 1000), drawDots);
|
||
|
|
matrix.writeDigitNum(1, (counter / 100) % 10, drawDots);
|
||
|
|
matrix.drawColon(drawDots);
|
||
|
|
matrix.writeDigitNum(3, (counter / 10) % 10, drawDots);
|
||
|
|
matrix.writeDigitNum(4, counter % 10, drawDots);
|
||
|
|
|
||
|
|
blinkcounter+=50;
|
||
|
|
if (blinkcounter < 500) {
|
||
|
|
drawDots = false;
|
||
|
|
} else if (blinkcounter < 1000) {
|
||
|
|
drawDots = true;
|
||
|
|
} else {
|
||
|
|
blinkcounter = 0;
|
||
|
|
}
|
||
|
|
matrix.writeDisplay();
|
||
|
|
delay(10);
|
||
|
|
}
|
||
|
|
}
|