Yesterday I got a Raspberry Pi – Model B with 512 MB RAM, Ethernet port and 2×USB to be precise.
Recently I got a number of LED matrix displays (HDSP-2112, eight characters, 5×7 pixels each). Used but in blameless condition – I just couldn’t resist ;-). The picture above shows the first functional test of one display with the character “A” which I “programmed” using hanging connections.
Update May 2021
Finally I managed to control this thing properly :-). Also see my latest post about this.