Does any one know what is the pinout for this printer? Which is TTL connection and what are ground, TX and RX? I got it from aliexpress and on their presentation pinouts are known, I can find it on internet, but they send me this wierd one. I want to connect it with Arduino UNO. [1GOOJPRT QR203] …

Thermal Printer GOOJPRT QR203 TTL pinout

missdrew January 31, 2022, 4:18pm 2

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