New Variant (GW-J555-V1.3)

[x13-me]

I've got the latest variant of these printers, marked GW-J555-V1.3

Key points:

• Uses WalkPrint
• Advertises as YHK-TNN00000
• Does not enumerate over USB on macOS*, but data lines appear to be routed
• JL Chip BP11530-56C4
• Board has markings to indicate it may support a 7.4V input as well as the 3.7V, but I don't speak Chinese

I have not yet successfully communicated with this unit via anything other than WalkPrint, and that has issues printing longer than ~8"

*(my mac is finicky with USB, i'll get a linux box tomorrow to test with)

Board Pics: