Sjaak @ smdprutser.nl writes:
When I was in China last year I sourced a couple of small E-ink displays (GDEH0124S01) through Taobao. They were simple ones with 8 14 segment characters. After some searching on the Chinese website from the manufacturer I found the datasheet. It was by all means not complete and a lot info was missing. After a bit more searching I found the controller used is DM130120 and its datasheet tells a bit more…
I made a PCB quite some time ago, but due to personal matters, I hadn’t the time to solder them up and write some code for it. A couple of days ago I soldered the PCB and fired up the compiler. After struggling through both of the chinglish manuals I converted their pseudo code into something the compiler and the micro understands.
More details at smdprutser.nl blog.