Nano Thermal Receipt Printer - TTL Serial _RPI_CASE You'll need a power supply

You'll need a power supply to power it

and datasheets available in the product tutorial

Polarity-protected 2-pin terminal block and jumper to connect external 5-12VDC power

They come in 1 meter reels with a 4-pin JST SM connector on each end

Nano Thermal Receipt Printer - TTL Serial _RPI_CASE You'll need a power supplyAdd a really really small printer to any microcontroller project with this very cute thermal printer. Thermal printers are also known as receipt printers, they're what you get when you go to the ATM or grocery store. Now you can embed a little printer of your own into an enclosure. This printer is ideal for interfacing with a microcontroller, you simply need a 3. 3V 5V TTL serial output from your microcontroller to print text, barcodes, bitmap