This page is dedicated to my upcoming exploration of the SIM900A GSM module. I plan to investigate its capabilities for mobile communication including SMS messaging, voice calling, and basic internet (GPRS).

My goals for this project include:

• 📩 Sending and receiving SMS via AT commands
• 📞 Making and receiving calls from a microcontroller
• 📶 Reading signal strength and SIM/network status
• 🛠 Understanding AT command structure and behavior
• 🔌 Power and serial interfacing with ESP32 or Arduino

Once I complete this exploration, I will share working sample code, circuit diagrams, test results, and documentation here.

Stay tuned — this project is in progress!

UNBOXING MODULE SIM 900 A

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