, computers.
Long post with piccies, so have made liberal use of the spoiler tag.
30x24+ Binary Display
Features:- 30x24+ binary display.png (1.55 MiB) Viewed 2317 times
+ Fast update speed ~ only 2 ticks delay.
+ Very easy to program the memory.
+ Can be extended far beyond 24 rows. [Or cropped without breaking, eg 12x12].
+ 60fps operation may be possible [but untested].
+ Can output static images / lettering, a picture slideshow, gif style animation, & probably more.
- Does not scroll. [... Yet. I am still a noob with combinator majicks.]
More details
Memory select input is on the red wire as "negative-Fish", 1 tick to read from the corresponding memory block, 1 tick to decode onto the screen.
Pictures are stored as simple binary-encoded decimal strings. 1 row of 30 lamps per channel. Lowest bit is marked by the transport belt.
Signals "Grey" and "Fish" are used internally to decode & select memory cell, colour signals are reserved for optional colour masking of pictures, but all other signals can be used for data channels when extending the display past row 24 [or if you want to place another block for +30 columns].
The timer is just a quick & dirty hack job for the slideshow: needs to have the output memory combinator in it manually reset to zero before using a static picture. I was tired.
If you want to build a binary decoder like this for your own projects, you ought to figure out how to build one for yourself [as I have over last weekend*], as there is something very important you need to understand in order to make it work properly.
Start with this thread for clues: viewtopic.php?f=8&t=20118
All praise to xKnight.
Installed the blueprint mod to export it for anyone who may be interested:
- binary display wiring.png (901.58 KiB) Viewed 2317 times
Pictures are stored as simple binary-encoded decimal strings. 1 row of 30 lamps per channel. Lowest bit is marked by the transport belt.
Signals "Grey" and "Fish" are used internally to decode & select memory cell, colour signals are reserved for optional colour masking of pictures, but all other signals can be used for data channels when extending the display past row 24 [or if you want to place another block for +30 columns].
The timer is just a quick & dirty hack job for the slideshow: needs to have the output memory combinator in it manually reset to zero before using a static picture. I was tired.
If you want to build a binary decoder like this for your own projects, you ought to figure out how to build one for yourself [as I have over last weekend*], as there is something very important you need to understand in order to make it work properly.
Start with this thread for clues: viewtopic.php?f=8&t=20118
All praise to xKnight.
Blueprint
Code: Select all
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gl39d6763fr//s38P5h9+aY5GjfTs+b6/qfZ+O5+dvXNx39qjvz/BzQKb7+hngMAHow to encode a picture in 3 easy steps even your granny could do
*The Weekend of Whut? Or: You will need a "binary to decimal converter" [available online, just ask google], one of the blank memory cells, & a pixellated design to copy from. [Start with a small one, heh.]
Step 1 ~ Look at the bottom row of your design and start typing "1" for each bright pixel and a "0" for each dark pixel into your handy binary->decimal converter app.
Example is "10000000" for the bottom row.
Step 2 ~ Press the "convert" button and copy the decimal result to clipboard [select it and press ctrl-C].
Example is "128" for the bottom row [channel "1"].
Step 3 ~ Switch back to Factorio, select channel "1" [for the bottom row] in the blank memory cell you chose, then paste the number into the input box with ctrl-V.
Simply repeat steps 1->3 for each row of your picture starting from the bottom, one row per data channel counting upwards. Easy-peasy binary encoding for non-mathematicians, like me.
[Note: do not overwrite the blank memory cell for "fish=0", as that is reserved to turn the display off.]
Example looks like this when programmed correctly into the memory cell:
- 8x8 example design.png (1.68 KiB) Viewed 2317 times
Example is "10000000" for the bottom row.
Step 2 ~ Press the "convert" button and copy the decimal result to clipboard [select it and press ctrl-C].
Example is "128" for the bottom row [channel "1"].
Step 3 ~ Switch back to Factorio, select channel "1" [for the bottom row] in the blank memory cell you chose, then paste the number into the input box with ctrl-V.
- 8x8 example memory.png (401.82 KiB) Viewed 2317 times
[Note: do not overwrite the blank memory cell for "fish=0", as that is reserved to turn the display off.]
Example looks like this when programmed correctly into the memory cell:
- 8x8 example final.png (463.41 KiB) Viewed 2317 times
Through the looking glass and what KC found there
This was my first try at complex combinator contraptions, it's nowhere near the level of some of the designs on the forums [wow!], but I'm kinda proud of how it turned out.I am not a programmer, nor a mathematician. Last weekend strained my brains.
It all started when I decided to use combinators for more than just "if heavy > light, activate cracking pumps". That was Day 1.
Learned what "modulo" meant, and actually did, then how to use it with combinators. Started with base 10, took a few hours before it clicked and the first binary decoder was built using nested combinators. Made a simple setup to monitor mine production using coloured lamps.
Day 2:
Built a prototype 28x24 display & hard-coded memory cell, figured out how to encode a picture easily into binary channels. But alas, the poor dear was so very slow to update: 4+n ticks [n = # of rows] till the final lamp was updated. Unacceptable!
Spent some time coding a few pictures in between lots of forum reading. Breakthrough happened when I found the "binary decoder" thread late that evening. Studied the decoder thread until xKnights post broke my brain: "Whut?"
Day 3: Much googling was done to understand siggboys helpful but technical explanation. MSB? Integer overflow? Two's complement? I had no idea what any of it meant. Reading DaveMcWs explanation of how his video player works also helped. Meanwhile, redesigned the modulo array based on a design from the decoder thread while my brain was recovering: The refresh delay became much better, only 5 ticks. 3 to parallel decode & 2 for memory lookup.
Then, suddenly, all I had read clicked together like a jigsaw! It finally made sense. My tired brain rejoiced, but still had work to do to rebuild and test the display. Thankfully the construction bots did the heavy lifting while I crunched the numbers. Result: 2 tick update delay. Aww yes!
If you read this section, thank you & have a nice day. Bonus points if you caught the reference in the spoiler tag.
It all started when I decided to use combinators for more than just "if heavy > light, activate cracking pumps". That was Day 1.
Learned what "modulo" meant, and actually did, then how to use it with combinators. Started with base 10, took a few hours before it clicked and the first binary decoder was built using nested combinators. Made a simple setup to monitor mine production using coloured lamps.
Day 2:
Built a prototype 28x24 display & hard-coded memory cell, figured out how to encode a picture easily into binary channels. But alas, the poor dear was so very slow to update: 4+n ticks [n = # of rows] till the final lamp was updated. Unacceptable!
Spent some time coding a few pictures in between lots of forum reading. Breakthrough happened when I found the "binary decoder" thread late that evening. Studied the decoder thread until xKnights post broke my brain: "Whut?"
Day 3: Much googling was done to understand siggboys helpful but technical explanation. MSB? Integer overflow? Two's complement? I had no idea what any of it meant. Reading DaveMcWs explanation of how his video player works also helped. Meanwhile, redesigned the modulo array based on a design from the decoder thread while my brain was recovering: The refresh delay became much better, only 5 ticks. 3 to parallel decode & 2 for memory lookup.
Then, suddenly, all I had read clicked together like a jigsaw! It finally made sense. My tired brain rejoiced, but still had work to do to rebuild and test the display. Thankfully the construction bots did the heavy lifting while I crunched the numbers. Result: 2 tick update delay. Aww yes!
If you read this section, thank you & have a nice day. Bonus points if you caught the reference in the spoiler tag.
Comments / critiques / improvements are all welcome. [I know the timer sucks, it is on the to-do list after 16/32bit & scrolling.]
[edit: Forgot to use code tags in the blueprint spoiler]
