Serial LCD with Cable questions

Other Retired Products
1

Hello!

I bought this guy, https://www.sparkfun.com/products/retired/9877 from Micro Center, (Of course I can not remember if it was in the original Yonkers store, or if it was still being sold in Brooklyn when it opened.) about the same time it was planning an easy retirement.

That being said I found that this code for such enabled displays

void setup()
{
  Serial.begin(9600);
  backlightOn();
}

void loop()
{  
  selectLineOne();
  Serial.print(millis());
  selectLineTwo();
  Serial.print(millis()/2);
  delay(100);
}

void selectLineOne(){  //puts the cursor at line 0 char 0.
   Serial.write(0xFE);   //command flag
   Serial.write(128);    //position
   delay(100);
}
void selectLineTwo(){  //puts the cursor at line 0 char 0.
   Serial.write(0xFE);   //command flag
   Serial.write(192);    //position
   delay(100);
}
void goTo(int position) { //position = line 1: 0-15, line 2: 16-31, 31+ defaults back to 0
if (position<16){ Serial.write(0xFE);   //command flag
              Serial.write((position+128));    //position
}else if (position<32){Serial.write(0xFE);   //command flag
              Serial.write((position+48+128));    //position 
} else { goTo(0); }
   delay(100);
}

void clearLCD(){
   Serial.write(0xFE);   //command flag
   Serial.write(0x01);   //clear command.
   delay(100);
}
void backlightOn(){  //turns on the backlight
    Serial.write(0x7C);   //command flag for backlight stuff
    Serial.write(157);    //light level.
   delay(100);
}
void backlightOff(){  //turns off the backlight
    Serial.write(0x7C);   //command flag for backlight stuff
    Serial.write(128);     //light level for off.
   delay(100);
}
void serCommand(){   //a general function to call the command flag for issuing all other commands   
  Serial.write(0xFE);
}

from their Playground site well before it went into R/O mode. I found that on the now discontinued and also purchased the same way Redboard kit, it runs properly and displays a climbing string of numbers, with the bottom lagging behind the top one

However on the Redstick, who was bought from Brooklyn, sometime last year I think, I only see the tail end it overlaps with each other. And this being powered on a six volt supply. :!: I’ll probably connect it to the computer to see if it repeats there. :?:

A person I work with was, ah, curious as to what I do, and chose these Sparkfun products to impress that person.

Doctor Who8

“Serendipity means what it says. And it should come with a triplicate written guarantee.”

2

Never mind gang.

I checked under the USB connection and the same thing happened. However everything works normally on the RedBoard PTH retail kit that I bought from the same source much earlier. I had thought of using the RedStick because it would be easier to show both the display and the device since that one can be position behind the display. :roll:

Incidentally how hard would it be to revive the RedBoard PTH, mine was https://www.sparkfun.com/products/retired/10776 but that was because it was available then. Even the one that it resembles which is https://www.sparkfun.com/products/retired/10908 would do.

3

The RedBoard kit really didn’t sell very well and that’s why we ended up retiring it. Because of this I’m afraid we’re not able to justify the cost of bringing it back. :frowning: