Rhydo SIM 900 SIM 900 -TTL UART Manual de usuario descargar pdf (Pagina 6)

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Page 6

Make a Call –AT COMMAND

 Input ATD158********;

 Respond OK, you will receive a call.

 Input ATH to end a call

2. Using Arduino code (Uno – Mega) compatible

Sending a text message (SMS) –Arduino code

 With the GPRS Shield removed, download this sketch into your Arduino. The GPRS Shield must be

removed so that it doesn't interfere with the programming of Arduino which takes place over the

Hardware UART (using FT232RL).

 Disconnect the Arduino from USB port to remove power to it.

 Set the Serial Port jumpers on the GPRS Shield in Xduino position (i.e. Arduino's RX connected to

GPRS_TX and TX of Arduino connected to GPRS_RX)

 Connect the antenna to the GPRS Shield and insert the SIM Card.

 Mount the GPRS Shield on Arduino.

 Apply power to the Arduino using USB port or via external power supply.

 Switch on the GPRS Shield by using the power switch. Wait till the Network LED (D1) starts blinking.

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Rhydo SIM 900 SIM 900 -TTL UART Manual de usuario Pagina 6