I just setup my new 1.2" 7 segment Backpack. I am using the sevenseg program example from the Adafruit Adafruit_LED_Backpack-master library with the 1.2" 7 segment Backpack connected to an Arduino UNO. It displays very dim numbers. I then added the lines:
matrix.setBrightness(15);
matrix.writeDisplay();
It didn't make any difference. When the dashes displayed by part of the program when the number is too long, those dashes are bright. Later in the program, a very bright colon is displayed.
1.2" 7 segment Backpack brightness with Arduino
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- wjburl
- Posts: 6
- Joined: Wed Apr 18, 2018 6:09 pm
- wjburl
- Posts: 6
- Joined: Wed Apr 18, 2018 6:09 pm
Re: 1.2" 7 segment Backpack brightness with Arduino
Just a noob problem. When I read that for large displays to use the v_IO pin, I thought that meant instead of the +5v pin. I went on to a different project for a few days and when I returned to this one, I connected both pins to +5v and it is working as expected. I now am using the display with an Adafruit HUZZAH ESP8266 board to display NTP time.
Please be positive and constructive with your questions and comments.