I got some LED modules dismantled from old festival screen. It would be nice to get them working, but I can't find any info about them, neither I have any idea how to controll them. AFAIK they are made to be used in series on some bus, and each module has level shifter and 4 octal bus transceivers.
Each module is 16x16 pixels, 1 pixels is 4 LEDs (RRGB). But I can't figure out how to drive this thing. Each module is internally splitted into two 16x8 pixels module and each of these has 6 ICs (4x HD74HC245P (octal bus transceiver), HD74HC04P(hex inverter) and 74HC595N(shift register)). There are also 12-pin connectors (one for in, one for out that connects to the next module, propably made for bunch of modules in series), 1 is GND, the rest 11 are data. It has only label saying P/N 5ml0341122 (which was not found by Google) and "KS-341 Ver1.2" written on PCB
I was not able to find any documentation to this on the internet. Is there anybody who knows something about these modules? Thanks. Some pictures of them: https://photos.app.goo.gl/PH6HjkzokVJ7ovn49
//EDIT: I started to peel off the rubber that covers the LEDs side of PCB. There is one TB62705C for every 8 LEDs. Still had no idea how to drive these, but I think I'm getting close.