Proof that the nRF52832 is a beast of computation power

15 Feb 2016

Here is a demo of a small graphics engine I designed that allows me to embark moving pictures on a nRF52832 directly in code with a reasonable occupied memory size (i can do RLE or LZ4 compression).

The screen Newhaven Display (NHD-C12864A1Z-FSRGB-FBW-HT1) which is given for 3 to 4 FPS is here pushed to its limits with some tricks to 8 FPS. The nRF52832 is cool here, for animations i can run up to 100 FPS depending on complexity but the screen cannot follow the cadence (because pixel commutation time is too long and contrast become to weak).

The video is here: http://fabiencomte.tumblr.com/post/139358255959/voici-une-d%C3%A9mo-dun-petit-moteur-graphique-que

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Fabien Comte over 8 years ago

Screen is 128 x 64 monochrome => 8192 bits => 1024 bytes

I use a double buffer so about 2 x 1024 bytes + 1024 bytes as decompression work buffer + few more bytes.

So say less than 4 Kbytes RAM.

Cat animation is 35.7 Kbytes uncompressed and 21.1 Kbytes after custom compression.
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Fabien Comte over 8 years ago

Screen is 128 x 64 monochrome => 8192 bits => 1024 bytes

I use a double buffer so about 2 x 1024 bytes + 1024 bytes as decompression work buffer + few more bytes.

So say less than 4 Kbytes RAM.

Cat animation is 35.7 Kbytes uncompressed and 21.1 Kbytes after custom compression.
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