Microview & Bubble Display 7 segment = Not working

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redred
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Microview & Bubble Display 7 segment = Not working

Post by redred » Tue Apr 28, 2015 6:44 am

Hi together,

I got stuck at an actual project at home. Besides some sensors and actors (which all are working fine), I have some trouble with the display. Hardware wiring was no problem at all, programming is a problem. Here my setup:

Microview on a breadboard, resistors, wires, bubble display.

According to the Sparkfun Learnpage (here: https://learn.sparkfun.com/tutorials/bu ... okup-guide) we have to pinout the HP Bubble Display:

Code: Select all

  //This pinout is for a bubble dispaly
   //Declare what pins are connected to the GND pins (cathodes)
   int digit1 = 8; //Pin 1
   int digit2 = 5; //Pin 10
   int digit3 = 11; //Pin 4
   int digit4 = 13; //Pin 6

   //Declare what pins are connected to the segments (anodes)
   int segA = 7; //Pin 12
   int segB = 6; //Pin 11
   int segC = 10; //Pin 3
   int segD = 3; //Pin 8
   int segE = 9; //Pin 2
   int segF = 4; //Pin 9
   int segG = 2; //Pin 7
   int segDP= 12; //Pin 5
But now comes the problem, as the Microview uses the Pins 0-6 and A0-A5. According to this page here http://learn.microview.io/intro/general ... oview.html. So after wiring and including the library in my Arduino project, I just adjust the pin declaration:

Code: Select all

  //This pinout is for a bubble dispaly
   //Declare what pins are connected to the GND pins (cathodes)
   int digit1 = A0; //Pin 1
   int digit2 = 0; //Pin 10
   int digit3 = A1; //Pin 4
   int digit4 = A2; //Pin 6

   //Declare what pins are connected to the segments (anodes)
   int segA = 1; //Pin 12
   int segB = 2; //Pin 11
   int segC = A4; //Pin 3
   int segD = 5; //Pin 8
   int segE = A3; //Pin 2
   int segF = 3; //Pin 9
   int segG = 6; //Pin 7
   int segDP= A5; //Pin 5
But when I now try to compile my project, I get a lot of errors. And they all result from the fact, that the "SevSeg.h" library can't handle the variables filled with A0-A5.

Does anyone know how this can be fixed? Can this be fixed by changing the "SevSeg.h" library?

Thanks and regards,
Robert

scotta
Posts: 43
Joined: Thu Jul 24, 2014 1:31 pm
Location: Toronto, Canada

Re: Microview & Bubble Display 7 segment = Not working

Post by scotta » Tue Apr 28, 2015 8:12 am

It compiled fine for me with your changes.

Here's the complete sketch that I used:

Code: Select all

/*
 March 6, 2014
 Spark Fun Electronics
 Nathan Seidle
 Updates by Joel Bartlett

 This code is originally based Dean Reading's Library deanreading@hotmail.com
 http://arduino.cc/playground/Main/SevenSegmentLibrary
 He didn't have a license on it so I hope he doesn't mind me making it public domain: 
 This code is public domain but you buy me a beer if you use this and we meet someday (Beerware license).

 This sketch provides a simple counter example for the HP Bubble display from SparkFun.
 https://www.sparkfun.com/products/12710

 Pinout for HP Bubble Display:
 1:  Cathode 1
 2:  Anode E
 3:  Anode C
 4:  Cathode 3
 5:  Anode dp
 6:  Cathode 4
 7:  Anode G
 8:  Anode D
 9:  Anode F
 10: Cathode 2
 11: Anode B
 12: Anode A
 */

#include "SevSeg.h"

//Create an instance of the object.
SevSeg myDisplay;

//Create global variables
unsigned long timer;
int deciSecond = 0;

void setup()
{

  int displayType = COMMON_CATHODE; //Your display is either common cathode or common anode


 //This pinout is for a bubble dispaly
  //Declare what pins are connected to the GND pins (cathodes)
  int digit1 = A0; //Pin 1
  int digit2 = 0; //Pin 10
  int digit3 = A1; //Pin 4
  int digit4 = A2; //Pin 6

  //Declare what pins are connected to the segments (anodes)
  int segA = 1; //Pin 12
  int segB = 2; //Pin 11
  int segC = A4; //Pin 3
  int segD = 5; //Pin 8
  int segE = A3; //Pin 2
  int segF = 3; //Pin 9
  int segG = 6; //Pin 7
  int segDP= A5; //Pin 5
       
  int numberOfDigits = 4; //Do you have a 1, 2 or 4 digit display?

  myDisplay.Begin(displayType, numberOfDigits, digit1, digit2, digit3, digit4, segA, segB, segC, segD, segE, segF, segG, segDP);

  myDisplay.SetBrightness(100); //Set the display to 100% brightness level

  timer = millis();
}

void loop()
{
  //Example ways of displaying a decimal number
  char tempString[10]; //Used for sprintf
  sprintf(tempString, "%4d", deciSecond); //Convert deciSecond into a string that is right adjusted
  //sprintf(tempString, "%d", deciSecond); //Convert deciSecond into a string that is left adjusted
  //sprintf(tempString, "%04d", deciSecond); //Convert deciSecond into a string with leading zeros
  //sprintf(tempString, "%4d", deciSecond * -1); //Shows a negative sign infront of right adjusted number
  //sprintf(tempString, "%4X", deciSecond); //Count in HEX, right adjusted

  //Produce an output on the display
  myDisplay.DisplayString(tempString, 0); //(numberToDisplay, decimal point location)

  //Other examples
  //myDisplay.DisplayString(tempString, 0); //Display string, no decimal point
  //myDisplay.DisplayString("-23b", 3); //Display string, decimal point in third position

  //Check if 10ms has elapsed
  if (millis() - timer >= 100)
  {
    timer = millis();
    deciSecond++;
  }

  delay(5);
}

Help@GeekAmmo
Posts: 41
Joined: Fri Jul 18, 2014 11:45 am

Re: Microview & Bubble Display 7 segment = Not working

Post by Help@GeekAmmo » Tue Apr 28, 2015 1:23 pm

Hi Robert,

If Scott is able to compile, maybe you can paste the exact error from Arduino IDE please?

Also what is the version of Arduino IDE you used to compile the sketch?

Cheers
JP

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redred
Posts: 2
Joined: Sun Apr 19, 2015 8:42 am
Location: Hamburg, Germany
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Re: Microview & Bubble Display 7 segment = Not working

Post by redred » Wed Apr 29, 2015 4:22 pm

Hi together!

First of all: IT WORKS! Perfect!

But it wasn’t actually the code that was wrong because the scratch from scotta didn’t compile ether. So I had to look somewhere else and finally found the problem. My Arduino IDE was set to Adafruit Trinket / USBtinyUSP and not to Arduino UNO / Com1. And that was the problem. Two weeks ago, I tested something on the Trinket and changed those settings.

With correct settings, everything worked. Even my old scratch.

Regards,
Robert

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Ross Robotics
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Re: Microview & Bubble Display 7 segment = Not working

Post by Ross Robotics » Wed Apr 29, 2015 4:44 pm

lol, I love a scratch that works!
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Available for circuit and PCB design, just PM me!

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