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SIM800L & Arduino Uno . Advertisement. Hardware. To start, set up the hardware as shown below. Naturally, you’re going to need a valid SIM card to fully use the SIM800L module. For compactness, my ...
Arduino UNO SIM800L Notes (3.8v)~(4.4v)! Vcc: Power supply input, Use circuit diagram shown below: 10 RX_PIN: TX: If you are using SoftwareSerial: 11 TX_PIN: RX: If you are using SoftwareSerial: RESET ...
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