QYF-TM1638 test

Tested my QYF TM1638 module with Arduino Uno

After some experimenting with my QYF-TM1628 board i got the example found at http://www.getmicros.net/arduino-qyf-tm1638-module-example.php
and arduino library at https://github.com/rjbatista/tm1638-library working.

First i tried without success another example found somewhere else on the internet. After further searching i found the example mentioned above. I had some doubt as the text in the wiring picture contained an error (two times GND at the Pinout text in the picture). I followed the wiring as displayed in the picture and the code, So my wiring was

• Gnd – GND from Arduino
• DIO – data pin, another ouput from your Arduino (Pin 8)
• CLK – clock pin, an output from your Arduino (Pin 9)
• STB – strobe pin, an output from your Arduino (Pin 10)
• VCC – 5v from Arduino (5V)

The Dupont wire provided with the module was Female-Female, so i replaced it with female-male to connect it with an Arduino Uno. 

Example code:

#include <TM1638.h>
#include <TM1638QYF.h>
 
TM1638QYF module(8,9,10);
word mode;
 
unsigned long startTime;
 
void setup() {
  startTime = millis();
 
  module.setupDisplay(true, 7);
  mode = 0;
}
 
void update(TM1638QYF* module, word* mode) {
  word buttons = module->getButtons();
  unsigned long runningSecs = (millis() - startTime) / 1000;
 
  // button pressed - change mode
  if (buttons != 0) {
    *mode = buttons >> 1;
 
    if (*mode < 128) {
      module->clearDisplay();
      delay(100);
    }
  }
 
  switch (*mode) {
    case 0:
      module->setDisplayToDecNumber(runningSecs, 1 << 6);
      break;
    case 1:
      module->setDisplayToDecNumber(runningSecs, 1 << 5, false);
      break;
    case 2:
      module->setDisplayToHexNumber(runningSecs, 1 << 4);
      break;
    case 4:
      module->setDisplayToHexNumber(runningSecs, 1 << 3, false);
      break;
    case 8:
      module->setDisplayToBinNumber(runningSecs, 1 << 2);
      break;
    case 16:
      char s[9];
      sprintf(s, "Secs %03d", runningSecs % 999);
      module->setDisplayToString(s, 1 << 1);
      break;
    case 32:
      if (runningSecs % 2 == 0) {
        module->setDisplayToString("TM1638QY", 1);
      } else {
        module->setDisplayToString(String("LIBRARY "), 1);
      }
 
      break;
    case 64:
      module->setDisplayToError();
      break;
    case 128:
      module->setDisplayToDecNumber(*mode, 0);
      break;
    case 256:
      module->setDisplayToString("ABCDE", 1 << (runningSecs % 8));
      break;
    default:
      module->setDisplayToBinNumber(buttons & 0xF, buttons >> 8);
  }
}