search

a-ws-m / Adafruit_CircuitPython_Thermal_Printer

CircuitPython module for interacting with serial thermal printers.
MIT License
0 stars 0 forks source link

Fix bitmap printing #3

Open a-ws-m opened 2 hours ago

a-ws-m commented 2 hours ago

Bitmap printing doesn't work using a Raspberry Pi 2 and a Mini printer with version 2.16

a-ws-m commented 2 hours ago

@greg-elmi Hi sorry to ping you on this but I wanted to ask a quick question. In your test code (specifically this line: https://github.com/greg-elmi/Adafruit_CircuitPython_Thermal_Printer/blob/d715ef62c998ae0c2b03acc15a3769a5402ebea0/adafruit_thermal_printer/test_print.py#L8) it seems you're communicating on COM. I think that means you were using Windows. Can I confirm that you only tested this using a USB -> serial connection on a Windows desktop PC?

Again, sorry, I know it was a long time ago, but I'm trying to get this running and my printer has the same firmware, so I'm trying to narrow down the issue.

My current theory is that maybe Python on the RPi 2 is just too slow and if I use a beefier machine the code might work as-is.