Is there a way to take text input from a barcode scanner process it with the Arduino and then save it to a text file on a SD card and display it one line per scan in a txt file in the SD card. I want to be able to scan text with the barcode scanner so I can then later put the sd card in a card reader and read the scans line by line. I am using Arduino MEGA with USB HOST. As both the devices SD card and Barcode snanner work on SPI communication, is there a way to communicate both devices together.
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Have you googled arduino spi multi slave