I have an Adafruit Thermal Printer that I’m connecting to my Electron. I’m sending lines to the printer to print, but the printer isn’t printing them. I have the printer’s green and yellow wires connected the the Electron’s Serial1 TX and RX pins. Here’s my code: // This #include statement was aut…

[image] boldbigflank: I have the printer’s green and yellow wires connected the the Electron’s Serial1 TX and RX pins. Have you crossed them TX -> RX and RX ->TX? There are multiple Adafruit Thermal Printers with different product numbers, which one do you have?

Adafruit Thermal Printer Debugging

Troubleshooting

ScruffR May 29, 2019, 1:45am 2

Have you crossed them TX -> RX and RX ->TX?

There are multiple Adafruit Thermal Printers with different product numbers, which one do you have?

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Adafruit Thermal Printer Debugging

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