{"product_id":"sim-800c-quadband-gsm-gprs-module","title":"SIM 800C Quadband GSM GPRS Module","description":"\u003cmeta name=\"description\" content=\"Buy SIM 800C Quadband GSM GPRS Module online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eSIM 800C Quadband GSM GPRS Module\u003c\/h1\u003e\n\n\u003cp\u003eThe SIM 800C is a compact quadband GSM\/GPRS module that operates on 850\/900\/1800\/1900 MHz frequencies, enabling global cellular connectivity for embedded systems and IoT applications. Electronics engineers, IoT developers, and embedded systems designers use this module to add voice calling, SMS, and GPRS data capabilities to microcontroller-based projects without requiring complex cellular infrastructure integration. This module solves the critical challenge of implementing cost-effective remote communication and real-time data transmission in applications ranging from GPS trackers to industrial monitoring systems and smart home devices.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe SIM 800C operates as a complete GSM\/GPRS solution integrated into a single module, featuring an ARM7 processor core that handles all cellular protocol stack operations independently. The module communicates with host microcontrollers via UART serial interface using AT command set, eliminating the need for complex cellular protocol implementation. Its quadband frequency support ensures compatibility across global networks, making it ideal for international IoT deployments. The integrated power management circuit handles voltage regulation and current management, requiring only a stable 3.7-4.2V power supply with adequate current capacity during transmission peaks.\u003c\/p\u003e\n\n\u003cp\u003eWhat distinguishes the SIM 800C is its optimized power consumption profile, consuming approximately 1.5mA in sleep mode and 25-100mA during active GPRS data transfer, making it suitable for battery-powered applications. The module includes built-in TCP\/IP stack for direct internet connectivity, MQTT protocol support for IoT cloud integration, and robust error handling for unreliable network conditions. Its compact 24x24x3mm form factor and standardized pinout make it compatible with development boards and custom PCB designs, while the industrial-grade temperature range (-40 to +85°C) ensures reliable operation in diverse environmental conditions.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eQuadband GSM\/GPRS Cellular Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSIMCom (Original)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Frequencies\u003c\/td\u003e\n\u003ctd\u003eGSM 850\/900\/1800\/1900 MHz, GPRS Class 12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e3.7V to 4.2V DC, 2A peak current capacity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eUART (TTL level, 9600-115200 baud)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Speed\u003c\/td\u003e\n\u003ctd\u003eGPRS: up to 85.6 kbps, SMS: 160 characters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C industrial grade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Dimensions\u003c\/td\u003e\n\u003ctd\u003e24mm x 24mm x 3mm compact form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuadband GSM\/GPRS connectivity on 850\/900\/1800\/1900 MHz frequencies for seamless global network compatibility and international roaming support\u003c\/li\u003e\n\u003cli\u003eLow power consumption with 1.5mA sleep mode and intelligent power management for extended battery life in portable IoT devices\u003c\/li\u003e\n\u003cli\u003eBuilt-in TCP\/IP stack and MQTT protocol support enabling direct cloud connectivity without additional networking modules\u003c\/li\u003e\n\u003cli\u003eAT command interface via UART simplifying integration with Arduino, Raspberry Pi, STM32, and other microcontroller platforms\u003c\/li\u003e\n\u003cli\u003eDual SIM capability option available for redundant connectivity and automatic network fallback in critical applications\u003c\/li\u003e\n\u003cli\u003eIndustrial temperature range and robust error correction ensuring reliable operation in harsh environmental conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGPS vehicle tracking systems requiring real-time location updates via GPRS data transmission to cloud servers with SMS alert capabilities\u003c\/li\u003e\n\u003cli\u003eRemote industrial monitoring and predictive maintenance systems transmitting sensor data from machinery in isolated locations without fixed internet connectivity\u003c\/li\u003e\n\u003cli\u003eSmart meter reading infrastructure for utilities collecting consumption data from distributed meters using GPRS and SMS fallback mechanisms\u003c\/li\u003e\n\u003cli\u003eEmergency alert systems and panic buttons in security applications leveraging voice calls and SMS for immediate notification delivery\u003c\/li\u003e\n\u003cli\u003eIoT environmental monitoring stations measuring temperature, humidity, and air quality with autonomous data logging and periodic cloud synchronization\u003c\/li\u003e\n\u003cli\u003eAutomated vending machines and payment terminals requiring real-time transaction verification and inventory management via cellular networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eTo integrate the SIM 800C module, establish UART serial communication between your microcontroller and the module's RX\/TX pins, ensuring proper voltage level conversion if your microcontroller operates at 5V logic levels. Insert an active GSM SIM card into the module's SIM slot, then apply stable 3.7-4.2V power supply with minimum 2A current capacity. Send AT commands through the serial interface to initialize the module, check network registration status using AT+CREG command, and configure GPRS parameters before establishing data connections.\u003c\/p\u003e\n\n\u003cp\u003eFor GPRS connectivity, use AT+SAPBR commands to configure the bearer settings with your mobile operator's APN (Access Point Name), then establish TCP\/IP connections using AT+CIPSTART command. For voice calls and SMS functionality, use ATD for dialing numbers and AT+CMGS for sending text messages. Monitor signal strength using AT+CSQ command to ensure adequate network coverage, and implement error handling routines to gracefully manage network disconnections and automatic reconnection logic. Always maintain adequate power supply decoupling with 100µF capacitors near the module's power pins to handle current transients during transmission.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between SIM 800C and SIM 900A modules?\u003c\/summary\u003e\n\u003cp\u003eThe SIM 800C is a newer quadband module supporting 850\/900\/1800\/1900 MHz frequencies with better power efficiency and smaller form factor compared to the older SIM 900A. The SIM 800C consumes less power in sleep mode (1.5mA vs 2.5mA), has improved GPRS stability, and offers better compatibility with modern global networks. For new projects, SIM 800C is recommended due to superior performance and ongoing manufacturer support.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use SIM 800C with 5V microcontroller boards directly?\u003c\/summary\u003e\n\u003cp\u003eNo, the SIM 800C operates at 3.3V logic levels and requires voltage level conversion for 5V microcontroller boards. Use a dedicated level shifter IC or voltage divider circuit on the TX line from the microcontroller to the module's RX pin. The module's TX output can be connected directly to a 5V microcontroller's RX pin as the 3.3V signal is typically recognized as logic high. Always use a separate 3.7-4.2V power supply for the module rather than powering it from the microcontroller's 3.3V regulator.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I handle network disconnections and implement automatic reconnection?\u003c\/summary\u003e\n\u003cp\u003eImplement a periodic AT+CREG query every 30-60 seconds to monitor network registration status. When disconnection is detected, initiate a reconnection sequence by sending AT+CFUN=1 to reset the module's functionality, wait for network registration (AT+CREG response showing +CREG: 0,1 or 0,5), then reconfigure GPRS bearer and reestablish TCP\/IP connections. Store connection parameters in EEPROM to enable faster reconnection without reconfiguring APN settings. Implement exponential backoff retry logic starting at 5 seconds and increasing to 5 minutes to avoid overwhelming the network during extended outages.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat power supply specifications are required for reliable operation?\u003c\/summary\u003e\n\u003cp\u003eThe SIM 800C requires a stable 3.7-4.2V DC power supply capable of delivering minimum 2A peak current during transmission bursts. Use a dedicated power supply rather than powering from microcontroller regulators, as the module's current draw can cause voltage sag affecting both the module and the microcontroller. Install a 100µF electrolytic capacitor in parallel with the power supply pins as close as possible to the module, supplemented with 10µF and 1µF ceramic capacitors for high-frequency noise filtering. For battery-powered applications, use a 3.7V lithium battery with low internal resistance or implement a boost converter to maintain voltage regulation as battery voltage drops.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy SIM 800C Quadband GSM GPRS Module Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eSIM 800C Quadband GSM GPRS Module\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eSIM 800C Quadband GSM GPRS Module\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48746581328129,"sku":"TTD-18161","price":1717.2,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/394b070edbce5fa58be57472da396fce.jpg?v=1778108058","url":"https:\/\/techdepot.in\/products\/sim-800c-quadband-gsm-gprs-module","provider":"Tech Depot India","version":"1.0","type":"link"}