Crowtail- 4-Digit Display
Description¶
Usually 4 digit display module is a 12 pin module. But in our Crowtail gadget, we utilize a TM1637 to scale down the controlling pins into 2 Crowtail pins. It only takes 2 digital pins of Arduino or Crowduino to control the content, even the luminance of this display. For projects that require of alpha-numeric display, this can be a nice choice.
Model: CT0060FDD
Features¶
- Compatible with Crowtail interface
- 4 digit red alpha-numeric display
- 8 adjustable luminance levels
- Dimensions(mm):40.0(L)x20.0(W)x12.8(H)
Application Ideas¶
- Time display
- Stopwatch
- Sensors' input display
Usage¶
The following sketch demonstrates a simple application of digital display.
1.Hardware Connection.
Connect to I2C connetor on the base shield for Arduino.
2.Download the library Crowtail- 4-Digit Display library; Unzip and put it in the libraries file : ..\arduino-1.0\libraries;
3.Open “_4Digital7_SegmentLED ” example via the path: File --> TM1650 --> Examples --> _4Digital7_SegmentLED.
/*
Demo code of P21 - 4 Digital 7-Segment LED with Time Separator
by maker studio
*/
#include "TM1650.h"
#include <inttypes.h>
static uint8_t TubeTab[] = {
0x3F,0x06,0x5B,0x4F,
0x66,0x6D,0x7D,0x07,
0x7F,0x6F,0x77,0x7C,
0x39,0x5E,0x79,0x71,
};//0~9,A,B,C,D,E,F
static uint8_t TubeTabwithPoit[] = {
0xBF,0x86,0xDB,0xCF,
0xE6,0xED,0xFD,0x87,
0xFF,0xEF
};//0~9
TM1650 DigitalLED(A5,A4);
int8_t number[] = {0,0,0,0};
void setup()
{
//Serial.begin(9600);
}
void loop()
{
DigitalLED.clearDisplay();
delay(1000);
DigitalLED.display(0,TubeTab[1]);
DigitalLED.display(1,TubeTab[2]);
DigitalLED.display(2,TubeTab[3]);
DigitalLED.display(3,TubeTab[4]);
delay(1000);
DigitalLED.clearDisplay();
delay(100);
DigitalLED.display(0,TubeTabwithPoit[5]);
DigitalLED.display(1,TubeTabwithPoit[6]);
DigitalLED.display(2,TubeTabwithPoit[7]);
DigitalLED.display(3,TubeTabwithPoit[8]);
delay(1000);
}
4.Upload it into your Crowduino board and observe the Digit-Display.
