mirror of
https://github.com/RobTillaart/Arduino.git
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47 lines
906 B
Arduino
47 lines
906 B
Arduino
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//
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// FILE: demo_dual1.ino
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// AUTHOR: Rob Tillaart
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// VERSION: 0.0.1
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// PURPOSE: demo 2 I2C 4x7segment displays one uint32_t unsigned long
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// URL: http://www.adafruit.com/products/1002
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// HISTORY:
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#include <Wire.h>
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#include "HT16K33.h"
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HT16K33 left, right;
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uint32_t counter = 0;
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void setup()
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{
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Serial.begin(115200);
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Serial.println(__FILE__);
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left.begin(0x70);
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right.begin(0x71);
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Wire.setClock(100000);
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left.displayOn();
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right.displayOn();
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left.suppressLeadingZeroPlaces(4); // show no digit if not needed
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right.suppressLeadingZeroPlaces(3); // show at least 1 digit if zero (0)
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Serial.println("dual displayTest");
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}
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void loop()
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{
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uint16_t lval = counter / 10000;
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uint16_t rval = counter % 10000;
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right.suppressLeadingZeroPlaces(lval == 0 ? 3 : 0);
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left.displayInt(lval);
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right.displayInt(rval);
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delay(1);
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counter++;
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}
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// -- END OF FILE --
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