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== 3216 Bicolor LED 3mm Dot Matrix Display == === synopsis === [[User:Xopr|xopr]] bought two 32x16 bicolor 3mm dot matrix displays (located in the slackspace running [https://en.wikipedia.org/wiki/Conway%27s_Game_of_Life Conway's game of life], connected to fuse group [[Fuse group::B]]). The display is sold by Sure electronics and is driven by [[Media:Holtek HT1632C.pdf|Holtek HT1632C]] IC's and controlled by an Arduino nano. They also have written a [[Media:Sure Electronics 3216 Bicolor LED.pdf|manual]] There are several versions of the 3216 bicolor display which all should work with the same library: * [http://store3.sure-electronics.com/de-dp14112 DE-DP14112] 3mm 5v, [[User:Xopr|xopr]]'s version (not available anymore) * [http://store3.sure-electronics.com/de-dp14211 DE-DP14211] 5mm 5v * [http://store3.sure-electronics.com/de-dp14116 DE-DP14116] 3mm 12v, newer version (verified by Krilek, thanks) The project also uses a modified version of wildstray's ht1632c library which you can find [[GitHub::https://github.com/ACKspace/ht1632c|here on github]]. === current implementation === :The attached power supply is too weak to have all the leds lit at full brightness. Expect crashing hardware here :The display has a jumper which allows 3 modes at boot, and 3 modes at run time; the mode is determined by first reading the jumper setting on boot, and then run-time {| class="wikitable" ! colspan="2" | jumper inside (connected to GND) ! ! colspan="2" | jumper outside (connected to VCC) ! ! colspan="2" | no jumper (N/C) ! rowspan="2" | mode |- ! boot time ! run time ! ! boot time ! run time ! ! boot time ! run time |- ! '''✓''' ! '''✓''' | | | | | | | '''messageTicker: season's greetings or music quiz banner, depending on #define''' |- ! '''✓''' | | | ! '''✓''' | | | | messageTicker: serial input (terminal-like) |- ! '''✓''' | | | | | | ! '''✓''' | random space invaders |- | ! '''✓''' | ! '''✓''' | | | | | game of life (fast) |- | | | ! '''✓''' ! '''✓''' | | | | '''game of life (normal)''' |- | | | ! '''✓''' | | | ! '''✓''' | game of life (slow) |- | ! '''✓''' | | | | ! '''✓''' | | test screen sequential fill |- | | | | ! '''✓''' | ! '''✓''' | | test screen random pixels |- | | | | | | ! '''✓''' ! '''✓''' | '''test screen stripe animation''' |} Note: the '''bold''' items are the ones you can 'set-and-forget' === old implementation === One of the first electronic devices on the very first day of our physical space, is the display showing ACKspace with a different prefix scrolling in vertically. Note that the first version was driven by a [http://shop.myavr.de/ myAVR kit], since Arduino wasn't that mainstream back at the time. <gallery> File:IMG_0948_wiki.jpg|Photo taken on the very [[Open_Door_Day_26-2-2011|first day we had a physical space]] File:IMG_1022_wiki.jpg|Photo taken during the [[Official_opening_party|opening party]] </gallery> Here you see a [[LED christmas tree]] with the marquee on the background: {{#widget:Html5media |url={{filepath:Christmas_tree_and_message_ticker.mov}} |width=640 |height=360 }} Location: [[Location::slACKspace]] (on the microwave) [[Category:Displays]][[Category:LEDs]][[Category:Arduino]]
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