HT16K33 to help with my ancient ancient displays

A project log for blinking things

this is a rebranded project, sorry guys. take your skulls/likes back if you want :)

davedarko • 10/13/2016 at 09:34•4 Comments

So at first I was about to edge a board and use some L2803s and 595s Shift registers, but then I saw that the HT16K33 matrix controllers are now so cheap that I bought 5 for 6,50 Euros. Lucky me, I've mistakenly marked the cathodes with red pins - but the math checks out. I have 3x5 positive pins and and 3x6 negative pins, so that makes 15 rows and 6 common columns - yay. https://cdn-shop.adafruit.com/datasheets/ht16K33v110.pdf 0x01 notes for the future - can anyone have too many displays?
0x02 NTTF - Stargate LED matrices 0x02 NTTF - Stargate LED matrices [UPDATE]

Previous log

The flux compensator

10/13/2016 at 04:35 • 5 comments

Next log

3 little boards - blinky stuff

02/10/2017 at 19:37 • 2 comments

Discussions

Eric Hertz wrote 10/13/2016 at 10:09

"gaters gonna gate" :)

Are you sure? yes | no

davedarko wrote 10/13/2016 at 10:23

the "ancients" font is displayable with a 3x4 matrix/display :) and numbers with 3x5.

Are you sure? yes | no

Eric Hertz wrote 10/13/2016 at 10:38

Cool about the "ancients"... and I learned about numbers in 3x5 from your "nixie" project :)

Did you see the groovy blinkies I invested in recently? They look normal at first, but they've a slight twist:

http://www.goldmine-elec-products.com/prodinfo.asp?number=G21553

Are you sure? yes | no

davedarko wrote 10/13/2016 at 10:49

uh, nice. reminds me of my HPDL1414s :)

Are you sure? yes | no