7 segment display reverse digits

Support for Arduino in combination with Air Manager and Air Player

Moderators: russ, Ralph

Message
Author
User avatar
jph
Posts: 2846
Joined: Fri Apr 10, 2020 12:50 pm
Location: Somewhere over the rainbow..

Re: 7 segment display reverse digits

#61 Post by jph »

I said I would dig out my 'special stash' of 7 segment displays for you :lol:

It would be one hell of a NAV radio with these boys in.
There's an ancient mega there to compare the size to. The image is the full size lid of my laptop. There is also a 0.3" 5 digit to compare :o ;)
IMG_20220829_130641881.jpg
Last edited by jph on Tue Aug 30, 2022 6:52 am, edited 2 times in total.
Joe. CISSP, MSc.

User avatar
jph
Posts: 2846
Joined: Fri Apr 10, 2020 12:50 pm
Location: Somewhere over the rainbow..

Re: 7 segment display reverse digits

#62 Post by jph »

Hi Keith,
Just check the values of R1 and R2 (iSet) for the 7219s on the schematic.
you have 40K ohms.
I would suggest around 12K or your displays will be far too dim to operate properly.
Joe
Joe. CISSP, MSc.

Post Reply