Dan Monceaux

Well, I got the badge open (though the case is a little damaged now and a button popped off in the process). The board looks much simpler than the earlier...

I hope this manual is of some use to you: https://datasheet.lcsc.com/szlcsc/GD32F150C8T6_C80736.pdf I don't know what to make of the remaining part #s listed below. C6T6 CE7F033 AJL721 ARM

Board is marked: TBD-1144-GDV1* *_Note: after discovering that the LED matrix was actually 44 pixels wide and 11 pixels high, this PCB part # makes sense!_

Yes, it had a four-step brightness button... with 25%, 50%, 75% and 100%

This is the eBay seller I bought mine from, in case you're interested in playing with this hardware yourself, @Effix . https://www.ebay.com.au/itm/LED-Programmable-Scrolling-Name-Message-Badge-Tag-Digital-Display-English-5Color/263338381497?ssPageName=STRK%3AMEBIDX%3AIT&var=562350867206&_trksid=p2057872.m2749.l2649

My next batch of badges arrived today. The three boxes were all marked 2017, but one of the badges had some noticeable external differences. On the yellow badge, both parts...

I have some news! After closer inspection of the badges that have arrived thus far (all from one eBay seller)... I discovered that they actually sent me the wrong product,...

Some cause for cautious optimism: the eBay seller who sold me the GD1144's labelled as b1248's is going to make amends by sending me another batch of (hopefully) the correct...

Excellent! I'll be sure to have some content ready to test the device to capacity. I think I'll focus on 2-bit imagery first.

Using bundled software with 2018-generation badges, I've had to forego a line and four columns of resolution in order to achieve the best available software, badge and playback speed combo....