- Materials
| Name | qty |
|---|---|
| Arduino uno | 1 |
| GSM 900A module | 1 |
| Connecting wires | 1 |
mobile SIM CARD (vodacom/tigo/airtel) |
1 |
| 5V Power adapter | 1 |
| Bread Board | 1 |
-
Specifications
GMS 900A input voltage : 5 Volts input current : 2 Amps
NOTE: Pin 7 and 8 in arduino are reserved as RX (Receiving) and TX (Transmitting) pins.
-
Look for a SIM slot in your arduino GSM module and insert your SIM card
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Power your GSM module by connecting a 5V power supply to it via its adjacent power pins (VCC, GND).
see below -
The GSM module will boot Wait for some time until you see the fast blinking LED starts blinking slowly.
-
Locate pins 5VR, 5VT and 2 GND(s). Then connect them as follows :
5VR -> Arduino Pin 8 (TX) 5VR -> Arduino Pin 8 (TX) all GND(S) -> Arduino GND -
Power up your arduino by connecting it to your computer.
see below
view arduino code here -> ARDUINO CODE