blinking eye demo. - Githubissues

geekscape / aiko_engine_mp

microPython event based engine supporting network messages (MQTT), times and various hardware drivers

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blinking eye demo. #21

Closed marcmerlin closed 3 years ago

marcmerlin commented 3 years ago

this started with a suitable animated gif I had to find (took over 1h)
then resizing it to 256 wide
crop top bottom, but it was still too high
scaled it down to 256x64 (the eyes were a bit taller)
split it in 2 gifs of 128x64
split out frames: convert -coalesce ../blinking_eyes2_128x64L.gif L%d.gif
convert to pbm: for i in *.gif; do convert $i $i.pbm; done
then manually inspect the frames to find which ones changed, and only import those at the right index (the gif had 53 frames)
repeat for the other eye
...
profit!

Ok, the 2 eyes aren't eactly synchronized because I can't update both oleds at the same time, but hopefully that's close enough :)

geekscape commented 3 years ago

hey @marcmerlin, if you complete all your image bliting, fills, text on both OLED screens ... before you do oled0.show() and oled1.show() that will help minimize the synchronization lag between the two screens.

Move line 221: oled0.show() ... https://github.com/geekscape/aiko_engine_mp/blob/master/examples/blinkeye/oled_blinkeye.py#L221 ... to immediately before line 246: oled1.show() ... https://github.com/geekscape/aiko_engine_mp/blob/master/examples/blinkeye/oled_blinkeye.py#L246

marcmerlin commented 3 years ago

fair point @geekscape , unfortunately the visible delay is from show(), but it doesn't hurt to remove a few extra milliseconds, if any :)