{"product_id":"sim800c-module-sms-data-replaces-sim900a-development-board-spring-antenna","title":"SIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna","description":"\u003cmeta name=\"description\" content=\"Buy SIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna 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\u003eSIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna\u003c\/h1\u003e\n\n\u003cp\u003eThe SIM800C Module is a compact GSM\/GPRS communication module designed for embedded systems requiring SMS, voice call, and GPRS data connectivity. IoT developers, embedded systems engineers, and industrial automation professionals use this module to add cellular communication capabilities to microcontroller-based projects. This product solves the critical challenge of integrating reliable mobile network connectivity into remote monitoring systems, telemetry devices, and IoT applications without requiring bulky external modems.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe SIM800C Module operates on quad-band GSM frequencies (850\/900\/1800\/1900 MHz) and provides full GPRS Class 12 connectivity for data transmission. The module communicates via standard AT commands through UART interface, making integration straightforward with Arduino, Raspberry Pi, STM32, and PIC microcontrollers. The integrated spring antenna design eliminates the need for external antenna connectors, reducing PCB space requirements and improving reliability in field deployments. Power consumption is optimized at 1.5A average current during transmission, making it suitable for battery-powered applications.\u003c\/p\u003e\n\n\u003cp\u003eUnlike the older SIM900A, the SIM800C features improved power efficiency, better signal reception, and enhanced stability in weak signal environments. The module includes built-in TCP\/IP stack for direct internet connectivity, supporting HTTP, FTP, and custom socket connections. Temperature range operation from -40°C to +85°C ensures functionality across diverse industrial and outdoor environments. The compact 24.5mm x 24.5mm x 3.1mm form factor integrates seamlessly into space-constrained PCB designs without compromising performance.\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\u003eGSM\/GPRS Cellular Communication Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSIM800C (Authentic)\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\u003eFrequency Bands\u003c\/td\u003e\n\u003ctd\u003e850\/900\/1800\/1900 MHz (Quad-band)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Speed\u003c\/td\u003e\n\u003ctd\u003eGPRS Class 12 (up to 85.6 kbps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUART TTL (3.3V logic compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e3.4V to 4.2V DC\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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna Type\u003c\/td\u003e\n\u003ctd\u003eIntegrated Spring Antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Dimensions\u003c\/td\u003e\n\u003ctd\u003e24.5 x 24.5 x 3.1 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuad-band GSM\/GPRS connectivity with 850\/900\/1800\/1900 MHz support for global network compatibility across India and international deployments\u003c\/li\u003e\n\u003cli\u003eIntegrated spring antenna eliminates external connector requirements, reducing BOM cost and improving signal stability in compact enclosures\u003c\/li\u003e\n\u003cli\u003eFull AT command compatibility enables seamless integration with existing firmware and development frameworks without extensive code rewriting\u003c\/li\u003e\n\u003cli\u003eBuilt-in TCP\/IP stack supports HTTP, FTP, and custom socket protocols for direct cloud connectivity and REST API integration\u003c\/li\u003e\n\u003cli\u003eLow power consumption at 1.5A average current with sleep mode capability extending battery life in remote monitoring applications\u003c\/li\u003e\n\u003cli\u003eWide operating temperature range (-40°C to +85°C) ensures reliability in industrial, automotive, and outdoor environmental conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRemote GPS tracking and vehicle telematics systems requiring real-time location updates and SMS alerts over cellular networks\u003c\/li\u003e\n\u003cli\u003eIndustrial IoT monitoring for temperature, humidity, and equipment sensors transmitting data to cloud platforms via GPRS connectivity\u003c\/li\u003e\n\u003cli\u003eSmart metering and utility monitoring applications collecting consumption data from distributed field devices and sending to central servers\u003c\/li\u003e\n\u003cli\u003eEmergency alert systems and security applications using SMS notifications for intrusion detection and critical event notifications\u003c\/li\u003e\n\u003cli\u003eAgricultural monitoring systems tracking soil moisture, weather conditions, and equipment status in remote farm locations without internet infrastructure\u003c\/li\u003e\n\u003cli\u003eMedical device applications including patient monitoring systems and emergency alert devices requiring reliable cellular communication\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eConnect the SIM800C Module to your microcontroller using UART pins: TX to microcontroller RX, RX to microcontroller TX, GND to common ground, and VCC to regulated 3.7V power supply (minimum 2A capacity recommended). Insert an active SIM card into the module's SIM slot before powering on. The module requires 30-40 seconds for initial registration with the network after power-up. Configure your microcontroller firmware to send AT commands through the serial port at 115200 baud rate (default), such as AT+CMGF=1 for text mode SMS or AT+CGATT=1 for GPRS activation.\u003c\/p\u003e\n\n\u003cp\u003eFor SMS functionality, use AT+CMGS command followed by the recipient phone number in quotes and the message text. For GPRS data transmission, establish a connection using AT+SAPBR commands to configure bearer settings, then AT+HTTPINIT to initialize HTTP functionality. Monitor the module status using AT+CREG? to check network registration status and AT+CSQ to verify signal quality (values 0-31 where higher is better). Implement proper error handling and timeout mechanisms in your firmware to manage network connectivity variations and ensure robust operation in production environments.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between SIM800C and SIM900A modules?\u003c\/summary\u003e\n\u003cp\u003eThe SIM800C offers improved power efficiency consuming 1.5A versus 2A for SIM900A, better performance in weak signal areas, smaller form factor (24.5mm vs 40mm), and integrated spring antenna eliminating external connector requirements. SIM800C also provides faster GPRS connectivity and reduced heat generation during continuous operation, making it ideal for battery-powered and space-constrained applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this module with Arduino and Raspberry Pi?\u003c\/summary\u003e\n\u003cp\u003eYes, the SIM800C Module is fully compatible with Arduino boards (Uno, Mega, Nano) and Raspberry Pi using UART serial communication. Connect TX\/RX pins to the microcontroller's serial pins and use standard serial libraries to send AT commands. For Raspberry Pi, use pyserial library in Python for easy integration. We recommend using a logic level converter for Raspberry Pi since it operates at 3.3V logic levels matching the module's TTL interface.\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 SIM800C requires a regulated 3.4V to 4.2V power supply with minimum 2A capacity. During transmission peaks, current draw reaches 2A, so undersized power supplies cause voltage drops and module resets. Use a dedicated power supply or battery with low ESR (equivalent series resistance) capacitors (100µF and 10µF) placed close to VCC and GND pins. Avoid powering from microcontroller USB ports as they cannot supply adequate current.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I send SMS and receive SMS using AT commands?\u003c\/summary\u003e\n\u003cp\u003eTo send SMS, use AT+CMGF=1 to set text mode, then AT+CMGS=\"+919876543210\" followed by your message text and Ctrl+Z to send. To receive SMS, enable unsolicited result codes with AT+CNMI=2,1,0,1 and handle +CMT notifications in your firmware. For reading stored messages, use AT+CMGL=\"ALL\" to list all messages. Ensure your SIM card has active SMS pack and sufficient balance for transmission.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum GPRS data speed and latency?\u003c\/summary\u003e\n\u003cp\u003eThe SIM800C supports GPRS Class 12 with theoretical maximum speed of 85.6 kbps in ideal conditions. Practical speeds range from 20-50 kbps depending on network signal strength and network congestion. Latency typically ranges from 500ms to 2 seconds for HTTP requests. For time-sensitive applications, implement appropriate timeout handling and retry mechanisms. GPRS provides sufficient bandwidth for sensor data transmission, JSON APIs, and moderate file transfers.\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 SIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eSIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna\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\u003eSIM800C Module SMS Data Replaces SIM900A Development Board Spring Antenna\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":48744393212161,"sku":"TTD-11087","price":879.4,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/52832fd40b7d6ca032b13884a366cb5f.jpg?v=1778073224","url":"https:\/\/techdepot.in\/products\/sim800c-module-sms-data-replaces-sim900a-development-board-spring-antenna","provider":"Tech Depot India","version":"1.0","type":"link"}