i have weird segment display a student buy it from ebay
with weird pins, anyway i connect it like this
VCC 5V
GND GND
DAT pin10
CLK pin12
LED !!
IR !!
DAT1 !!
the last 3 pins not connected to anything
i am using this code to test it and for now no luck!!
anyone can help here, a hint or something!
/* Serial 7-Segment Display Example Code
Serial Mode Stopwatch
by: Jim Lindblom
SparkFun Electronics
date: November 27, 2012
license: This code is public domain.
This example code shows how you could use software serial
Arduino library to interface with a Serial 7-Segment Display.
There are example functions for setting the display's
brightness, decimals and clearing the display.
The print function is used with the SoftwareSerial library
to send display data to the S7S.
Circuit:
Arduino -------------- Serial 7-Segment
5V -------------------- VCC
GND -------------------- GND
8 -------------------- RX
*/
#include <SoftwareSerial.h>
// These are the Arduino pins required to create a software seiral
// instance. We'll actually only use the TX pin.
const int softwareTx = 10;
const int softwareRx = 12;
SoftwareSerial s7s(softwareRx, softwareTx);
unsigned int counter = 0; // This variable will count up to 65k
char tempString[10]; // Will be used with sprintf to create strings
void setup()
{
// Must begin s7s software serial at the correct baud rate.
// The default of the s7s is 9600.
s7s.begin(9600);
// Clear the display, and then turn on all segments and decimals
clearDisplay(); // Clears display, resets cursor
s7s.print("-HI-"); // Displays -HI- on all digits
setDecimals(0b111111); // Turn on all decimals, colon, apos
// Flash brightness values at the beginning
setBrightness(0); // Lowest brightness
delay(1500);
setBrightness(127); // Medium brightness
delay(1500);
setBrightness(255); // High brightness
delay(1500);
// Clear the display before jumping into loop
clearDisplay();
}
void loop()
{
// Magical sprintf creates a string for us to send to the s7s.
// The %4d option creates a 4-digit integer.
sprintf(tempString, "%4d", counter);
// This will output the tempString to the S7S
s7s.print(tempString);
setDecimals(0b00000100); // Sets digit 3 decimal on
counter++; // Increment the counter
delay(100); // This will make the display update at 10Hz.
}
// Send the clear display command (0x76)
// This will clear the display and reset the cursor
void clearDisplay()
{
s7s.write(0x76); // Clear display command
}
// Set the displays brightness. Should receive byte with the value
// to set the brightness to
// dimmest------------->brightest
// 0--------127--------255
void setBrightness(byte value)
{
s7s.write(0x7A); // Set brightness command byte
s7s.write(value); // brightness data byte
}
// Turn on any, none, or all of the decimals.
// The six lowest bits in the decimals parameter sets a decimal
// (or colon, or apostrophe) on or off. A 1 indicates on, 0 off.
// [MSB] (X)(X)(Apos)(Colon)(Digit 4)(Digit 3)(Digit2)(Digit1)
void setDecimals(byte decimals)
{
s7s.write(0x77);
s7s.write(decimals);
}
thanks everyone - if someone have problem just use this always the (-) is the first number