{"product_id":"sim900a-gsm-modem-with-sma-antenna-gsm-module","title":"SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003eSIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna\u003c\/span\u003e\u003c\/h2\u003e\nThe \u003cstrong\u003esim900a gsm module\u003c\/strong\u003e is a compact and reliable wireless extension kit designed for GSM\/GPRS communication, and it supports stable connectivity across multiple power configurations. This module includes VCC5 (5V) and VCC4 (3.5–4.5V) interfaces, making it suitable for diverse embedded applications. Moreover, users searching for \u003cstrong\u003egsm module sim900a price\u003c\/strong\u003e or planning integration with embedded boards will find it ideal due to its efficient design and durable hardware. Since it performs well with microcontrollers and IoT systems, it naturally fits into \u003cstrong\u003esim900a gsm module arduino\u003c\/strong\u003e projects. \u003cbr\u003e\u003cbr\u003eIt features an onboard SMA antenna interface (default) along with an additional IPX mini connector, while the SIM900A reset interface remains reserved for custom control needs. Because the module can be powered through a USB source during development, early debugging becomes simple and efficient. Furthermore, it is recommended to use a power supply rated above 1A to handle larger data loads consistently. \u003cbr\u003e\u003cbr\u003eIts standby current remains in the tens of milliamps, and the dormancy mode significantly reduces consumption to as low as 10mA. Additionally, it supports 2G networks while accepting 3G and 4G SIM cards from mobile operators, ensuring greater flexibility. The serial port circuit is compatible with both 3.3V and 5V microcontrollers, which makes this \u003cstrong\u003esim900a gsm module\u003c\/strong\u003e even more versatile for development environments. For projects that require clear interface markings or users comparing \u003cstrong\u003egsm module sim900a price\u003c\/strong\u003e, the PCB screen printing ensures easy secondary development. This makes it suitable for IoT experiments, wireless automation, and \u003cstrong\u003esim900a gsm module arduino\u003c\/strong\u003e integrations.\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eTechnical Details\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eFrequency bands: Dual-band\u003c\/li\u003e\n\u003cli\u003eGPRS connectivity: 90dB, GPRS multi-slot class 10 (default), class 8 (option)\u003c\/li\u003e\n\u003cli\u003eOn-Off Button: Yes\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -30 to 80 ºC\u003c\/li\u003e\n\u003cli\u003eSupply Voltage:\u003c\/li\u003e\n\u003cli\u003eVCC5: DC 5V input\u003c\/li\u003e\n\u003cli\u003eVCC4: DC 3.5 – 4.5V input\u003c\/li\u003e\n\u003cli\u003eDimensions (LxW): 50x50mm (approx)\u003c\/li\u003e\n\u003cli\u003eWeight: 22g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eUSB power support for early computer debugging.\u003c\/li\u003e\n\u003cli\u003eRecommended current: Above 1A for stable high-data operations.\u003c\/li\u003e\n\u003cli\u003eStandby current: Tens of mA.\u003c\/li\u003e\n\u003cli\u003eDormancy mode: Only 10mA power usage.\u003c\/li\u003e\n\u003cli\u003eAccepts 2G, 3G, and 4G SIM cards.\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.3V microcontrollers.\u003c\/li\u003e\n\u003cli\u003eTTL serial port supports both 3.3V and 5V MCU systems.\u003c\/li\u003e\n\u003cli\u003eSIM circuit includes SMF05C ESD protection.\u003c\/li\u003e\n\u003cli\u003eShort direct antenna design for optimal signal strength.\u003c\/li\u003e\n\u003cli\u003eClear PCB labeling for easy development.\u003c\/li\u003e\n\u003cli\u003eFollows SIM900\/A hardware manual specifications.\u003c\/li\u003e\n\u003cli\u003ePower Interfaces: VCC5 (5V DC, \u0026gt;1A) \u0026amp; USB power support.\u003c\/li\u003e\n\u003cli\u003eVCC4: 3.5–4.5V for lithium battery operation.\u003c\/li\u003e\n\u003cli\u003eAll control pins are easily accessible.\u003c\/li\u003e\n\u003cli\u003eTTL compatible with 3.3V \/ 5V.\u003c\/li\u003e\n\u003cli\u003eTwo antenna interfaces available.\u003c\/li\u003e\n\u003cli\u003eDefault SMA straight head.\u003c\/li\u003e\n\u003cli\u003eSupports IPX mini connector.\u003c\/li\u003e\n\u003cli\u003eIncludes one speech interface.\u003c\/li\u003e\n\u003cli\u003eIncludes one microphone interface.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eOnboard Resources\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eSerial port circuit (with protection)\u003c\/li\u003e\n\u003cli\u003eAntenna interface circuit (SMA bend female port)\u003c\/li\u003e\n\u003cli\u003eSIM card circuit (flip SIM slot)\u003c\/li\u003e\n\u003cli\u003e4×3.5mm fixture holes\u003c\/li\u003e\n\u003cli\u003eSIM900A serial port output terminal\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePin Description\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eGND – Ground\u003c\/li\u003e\n\u003cli\u003eSIMR – SIM900A RXD, TTL level\u003c\/li\u003e\n\u003cli\u003eSIMT – SIM900A TXD, TTL level\u003c\/li\u003e\n\u003cli\u003eRST – SIM900A reset, active low\u003c\/li\u003e\n\u003cli\u003eVCC_MCU – 5V TTL communication\u003c\/li\u003e\n\u003cli\u003eVCC_MCU – 3.3V TTL communication\u003c\/li\u003e\n\u003cli\u003eVCC5 – DC 5V input\u003c\/li\u003e\n\u003cli\u003eVCC4 – DC 3.5–4.5V input\u003c\/li\u003e\n\u003cli\u003eSerial port circuit (protected)\u003c\/li\u003e\n\u003cli\u003eAntenna interface circuit\u003c\/li\u003e\n\u003cli\u003eSIM card circuit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cspan style=\"font-size: 18.72px;\"\u003eApplications :\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWireless GSM\/GPRS communication\u003c\/li\u003e\n\u003cli\u003eRemote data transmission\u003c\/li\u003e\n\u003cli\u003eIoT applications\u003c\/li\u003e\n\u003cli\u003eHome automation\u003c\/li\u003e\n\u003cli\u003eGPS tracking systems\u003c\/li\u003e\n\u003cli\u003eSmart meters\u003c\/li\u003e\n\u003cli\u003eIndustrial control\u003c\/li\u003e\n\u003cli\u003eWireless security systems\u003c\/li\u003e\n\u003cli\u003eSMS and call-based control\u003c\/li\u003e\n\u003cli\u003eVehicle tracking and fleet management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eIntegration with Arduino\u003c\/h3\u003e\n\u003cdiv style=\"text-align: center;\" id=\"p_info\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/wiring.webp?v=1647929287\" alt=\"sim900a gsm module arduino wiring\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003eIntegration with Raspberry Pi\u003c\/h3\u003e\n\u003cdiv id=\"p_info\" style=\"text-align: center;\"\u003e\u003cimg alt=\"SIM900A with Raspberry Pi\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/tX8lX.png?v=1647930025\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePhysical Attributes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003eL x W (mm): 49 x 47\u003c\/li\u003e\n\u003cli\u003eWeight (gm): 22\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cdiv id=\"p_info\"\u003e\n\u003cul class=\"pro-ds\"\u003e\n\u003cli\u003e1 x SIM900A V4.0 Kit Wireless Extension Module GSM GPRS Board Antenna\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":40708949770421,"sku":"KG755","price":342.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/sim900a-gsm-module-board-kit-front.png?v=1768549332","url":"https:\/\/kitsguru.com\/de\/products\/sim900a-gsm-modem-with-sma-antenna-gsm-module","provider":"KitsGuru","version":"1.0","type":"link"}