Happy new year !
Added 2023-01-03 19:41:09 +0000 UTCBack on it like a car bonnet. A few projects in the works
Comments
Thanks, i saw the writeup here: https://damow.net/fun-with-flip-dot-displays/ Tonight ive been making progress writing a display driver for the adafruit GFX lib. still mushing things around, might be a while. At this point its all icky organizational and structural code stuff. Hope to have at least an initialization thingie for testing this new method soon. The good news is i have off next week so i can spend some time from that on this. One thing we are going to need to try and get organized is some way to test the displays once i get more finished with this code. FineQuasar17 on the discord has been helpful in deploying the code so far. My hope is that by bothering to play nice with an existing lib, we could leverage its nice buffer logic etc to have a better means of pushing data to the display. Im essentially changing the bits of code that are specific to another display that communicates via SPI etc, and instead translating it into the same actions but with this interface with the two binary counters (row / col) the coil pulse and the set pin in mind. At that point, all of the higher level codey bits should be compatible, even though its not drawing a "pixel" and its not communicating over a serial protocol to the display to draw things. Here is the new repo still WIP: https://github.com/CausticCatastrophe/Adafruit_HANOVER_FLIPDOT
Caustic
2023-01-05 04:08:26 +0000 UTCBlippy Bleep Bloop 🤤
Sven Cyclodine
2023-01-04 08:52:12 +0000 UTCif you are talking about mikes project, its early at the minute, he is designing a prototype back pack board. he has a pcb on the way to him with basically shift registers and h bridge drivers to control each flip dot, im not sure of the specifics any more than that. i think he is testing that concept, then making it bigger to control a whole disp,lay board the same size as the etch a sketch one. he is not concrete on what is controlling the boards. so open to things to suggest to him
Look Mum No Computer
2023-01-04 07:49:56 +0000 UTCregarding the display im not sure which you are referring to. if the one ash has, it can do anything really, i bashed it together to mess with more, then ultimately in 2 weeks have it as a xy etch a sketch on the wall at museum but i can build another if need be only took a couple of hours. might make a pcb.
Look Mum No Computer
2023-01-04 07:47:27 +0000 UTCregarding the documentation i havent found any. off the top of my head there are no shift registers. its binary counters counting through the multiplexers https://damow.net/fun-with-flip-dot-displays/ this person made a rough schematic if you havent already seen.
Look Mum No Computer
2023-01-04 07:46:08 +0000 UTCim looking forward to seeing it! ash showed me the initial console before it was working, looks great. when ash brings it back in a couple of weeks, ill have the cover and encoders for it so can get it finished and can bash a vid out on the progress on museum channel. i can imagine its difficult to do something without it infront of you, heck its a wonder you have done what you have done! thats cool on the display buffer, its the way to go isnt it, its what i wanted to do, but with not practical coding means to do so haha, so im glad on the same page :D. interestinhg regarding the GFX lib!!! sounds interesting.
Look Mum No Computer
2023-01-04 07:44:54 +0000 UTCDISCORD LINK: https://discord.gg/CQrKazvy We have basically made a basic serial interface which will let you use the serial console of the arduino ide to control various bits of code. we got a ways into this, but i think the best route is to make a display driver for the adafruit GFX library. load more functionality. Its been rather difficult making anything, because just have to hope things work out cause we dont have access to the hardware! Im planning on managing the state of the display in a display buffer, that way you can test whether a given dot is flipped or not. meaning, if you dont have to update that dot, its one less thing to update, which means faster refreshes! The next steps would be to accept serial data into the display buffer, and draw it, but ive been having second thoughts about going about it the way we currently have it since there is likely a much better way using that adafruit GFX lib. hey, any chance you know of any documentation on the control boards for the flipdots? Im trying to see if we can know more about which shift registers are being used etc so we can smack data into that ish i have a sneaking suspicion that the pins included in your source code align to those shift registers, but i dont see a clock for instance. I would like to know more about how the display is planned to be controlled, i feel i might not be able to get much progress done unless i know how to interface with it! If we can use SPI or similar that would be great. I think ill hold of on writing the driver until we have a more concrete idea about what the controller board is like. in the meanwhile, we can think about the solution to downsample the video feed.
Caustic
2023-01-04 00:25:44 +0000 UTC
