1. What is the SIM900A GSM/GPRS USB modem?
The SIM900A GSM/GPRS USB modem is a device designed for industrial applications related to GSM that enables SMS and data applications. It is a complete Dual-band GSM/GPRS solution in a SMT module that can be embedded in customer applications, allowing you to benefit from small dimensions and cost-effective solutions
2. What type of sim cards does the SIM900A modem support?
The SIM900A modem supports all types of sim cards except JIO
3. What are the features of the SIM900A modem?
The SIM900A modem has several features, including dual-band GSM/GPRS 900/1800 MHz performance for voice, SMS, data, and fax, RS232 interface for direct communication with a computer or MCU kit, configurable baud rate from 1200-115200 through AT command, internal TCP/IP stack to enable internet connectivity via GPRS, low power consumption of 1.0mA (sleep mode&BS-PA-MFRMS=9), control via AT commands (GSM 07.07, 07.05, and SIMCOM enhanced AT Commands), aluminum enclosure to minimize noise, supports CSD data up to 14.4 kbps and USSD non-transparent mode, and supports point-to-point MO and MT SMS cell broadcast text and PDU mode software for SMS via GSM/GPRS
4. What are some applications of the SIM900A modem?
The SIM900A modem is suitable for SMS and data applications, some IoT applications, mostly in emergencies. It is also used in location tracing systems
5. How do I use the SIM900A modem?
To use the SIM900A modem, connect it to a power supply within the range of 4.5V-12V, insert a SIM card into the SIM card holder, assemble the GSM antenna to the modem, and connect the serial cable to the modem. You can then send AT commands to the modem to perform various functions, such as sending and receiving SMS messages, making voice calls, and connecting to the internet via GPRS
