Product Description The GPRS GSM SIM900 Arduino Shield is a powerful communication add-on board that allows your Arduino to connect to the GSM cellular network for making calls, sending SMS, and accessing the internet via GPRS. Based on the SIM900 module, this shield makes it easy to integrate GSM/GPRS functionality into your IoT and remote monitoring projects. It supports quad-band frequency (850/900/1800/1900 MHz), ensuring compatibility with most mobile networks worldwide. With a SIM card inserted, your Arduino can send/receive SMS, connect to remote servers, or even make voice calls, making it ideal for IoT, security, and automation applications. Now available in Bangladesh from PowerMark Solution. Hardware Overview of SIM900 GSM/GPRS Shield Connecting SIM900 GSM Shield to PC In order to operate SIM900 GSM Shield directly over PC, you need to connect it to PC using any USB to TTL converter. Features Based on SIM900 GSM/GPRS module. Supports quad-band frequencies: 850/900/1800/1900 MHz. Provides GPRS data connectivity. Supports SMS send/receive functions. Supports voice call functions. Standard Arduino shield format for plug-and-play use. Compatible with Arduino Uno, Mega, and other boards. Onboard antenna connector for stable signal reception. AT command set supported for full control. Works with 5V and 3.3V logic. Applications IoT device communication. SMS-based monitoring and control. Remote data logging and reporting. Security and home automation systems. Vehicle tracking and telematics. Industrial automation with GSM connectivity. Smart agriculture and environmental monitoring. Technical Specifications Specification Details Module SIM900 GSM/GPRS Frequency Bands Quad-band 850/900/1800/1900 MHz Communication UART (Serial) Functions SMS, Voice Calls, GPRS Data Operating Voltage 5V (compatible with Arduino logic) Shield Format Standard Arduino Shield Antenna Support External antenna connector Package Includes 1 × GPRS GSM SIM900 Arduino Shield 1 × External GSM antenna Documentation Controlled via AT commands using Arduino serial communication. Libraries and sample codes are available for SMS, call, and GPRS functions. FAQs Q1: Which networks does this module support?A: It supports quad-band GSM networks (850/900/1800/1900 MHz). Q2: Can I send and receive SMS with this shield?A: Yes, it supports SMS functionality. Q3: Does it support voice calls?A: Yes, you can make and receive calls. Q4: Can I use it for IoT projects?A: Yes, it supports GPRS for internet-based IoT applications. Q5: Which Arduino boards are compatible?A: Arduino Uno, Mega, and other standard boards. Q6: How is it programmed?A: Using AT commands via Arduino’s serial interface. Q7: Does it include an antenna?A: Yes, an external antenna is provided. Q8: Can it be used with Raspberry Pi?A: Yes, but requires UART configuration. Q9: What SIM card does it use?A: A standard GSM SIM card. Q10: Is it beginner-friendly?A: Yes, with many Arduino libraries and tutorials available.
