alt Hacker NewsI managed to get it going through inspecting the bluetooth packages, now building my app for it. Couldn't get the correct image output yet but it appears to be simple, just have to send the image line by line
I managed to get it going through inspecting the bluetooth packages, now building my app for it. Couldn't get the correct image output yet but it appears to be simple, just have to send the image line by line
Most likely the logic is at least similar. Yes, line by line, each line is encoded in bytes where each bit is a pixel. I had to "invert" the image as the printer will print the "white" pixels (those with a value >0).
The printer has an internal buffer so you can send multiple lines at the same time, but on the bear this starts to break down after 200 lines or so (consider that the bear has a higher 300 dpi resolution, so 576 pixel per line). Also pay attention to overheating, I put 1 or 2 seconds of pause every 400 lines just in case.