I connected to my board lcd screen and a rfid scanner(MFRC522) I want that when i scan the tag that registered in the code on the lcd there will be text "Welcome" and then clear it but when i do it its only adding a weird symbol after "Welcome" and the same on unregistered tags... here is my code: …

lcd.clear is'nt working well

floresta May 27, 2018, 2:08pm 5

Try using a different pin for the LCD 'RS' connection as pin 1 is used by the serial port.

Don

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