Hello, I have bought Thermal printer: QR-701, from ali-express.
I have attached the printer to Arduino UNO like this sketch:
vh - 5v,
gnd - gnd
RX - PIN 6
TX - PIN 5
And I've uploaded this code from Adafruit_Thermal API on github.(the libaries are added successfully)
And this is the results:
also the print is very slow, for the piece of paper that I've pictured for you took at least 45Seconds.
is this because of something I did wrong? or the product is damaged.