{"id":306,"date":"2025-11-20T19:51:28","date_gmt":"2025-11-20T19:51:28","guid":{"rendered":"https:\/\/hamtechtechnologies.com\/index.php\/product\/sim900-gsm-module\/"},"modified":"2025-11-30T16:50:58","modified_gmt":"2025-11-30T16:50:58","slug":"sim900-gsm-module","status":"publish","type":"product","link":"https:\/\/hamtechtechnologies.com\/index.php\/product\/sim900-gsm-module\/","title":{"rendered":"SIM900 GSM Module"},"content":{"rendered":"<p data-start=\"251\" data-end=\"541\">The SIM900 GSM\/GPRS Module is a compact and reliable communication module widely used in IoT, remote monitoring, tracking systems, and wireless control applications.<br data-start=\"416\" data-end=\"419\" \/>It supports quad-band GSM frequencies, enabling global compatibility for SMS, voice calling, and GPRS data transmission.<\/p>\n<p data-start=\"543\" data-end=\"961\">The module communicates via UART (TX\/RX), making it easy to interface with Arduino, ESP32, Raspberry Pi, and other microcontrollers.<br data-start=\"675\" data-end=\"678\" \/>It includes essential features such as onboard power regulation, antenna support, SIM card slot, status LEDs, and network indicators.<br data-start=\"811\" data-end=\"814\" \/>The SIM900 is ideal for projects that require wireless data logging, remote SMS alerts, GPS\/GSM combined systems, and MQTT over GPRS communication.<\/p>\n<hr data-start=\"963\" data-end=\"966\" \/>\n<h3 data-start=\"968\" data-end=\"988\"><strong data-start=\"972\" data-end=\"988\">Key Features<\/strong><\/h3>\n<ul data-start=\"990\" data-end=\"1297\">\n<li data-start=\"990\" data-end=\"1036\">\n<p data-start=\"992\" data-end=\"1036\">Quad-band GSM\/GPRS (850\/900\/1800\/1900 MHz)<\/p>\n<\/li>\n<li data-start=\"1037\" data-end=\"1081\">\n<p data-start=\"1039\" data-end=\"1081\">Supports SMS, voice calls, and GPRS data<\/p>\n<\/li>\n<li data-start=\"1082\" data-end=\"1111\">\n<p data-start=\"1084\" data-end=\"1111\">UART serial communication<\/p>\n<\/li>\n<li data-start=\"1112\" data-end=\"1138\">\n<p data-start=\"1114\" data-end=\"1138\">Built-in TCP\/UDP stack<\/p>\n<\/li>\n<li data-start=\"1139\" data-end=\"1166\">\n<p data-start=\"1141\" data-end=\"1166\">Onboard SIM card holder<\/p>\n<\/li>\n<li data-start=\"1167\" data-end=\"1197\">\n<p data-start=\"1169\" data-end=\"1197\">External antenna connector<\/p>\n<\/li>\n<li data-start=\"1198\" data-end=\"1223\">\n<p data-start=\"1200\" data-end=\"1223\">Low power consumption<\/p>\n<\/li>\n<li data-start=\"1224\" data-end=\"1250\">\n<p data-start=\"1226\" data-end=\"1250\">AT Command set support<\/p>\n<\/li>\n<li data-start=\"1251\" data-end=\"1297\">\n<p data-start=\"1253\" data-end=\"1297\">Compatible with Arduino, ESP32, Raspberry Pi<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1299\" data-end=\"1302\" \/>\n<h3 data-start=\"1304\" data-end=\"1326\"><strong data-start=\"1308\" data-end=\"1326\">Specifications<\/strong><\/h3>\n<div class=\"_tableContainer_1rjym_1\">\n<div class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\">\n<table class=\"w-fit min-w-(--thread-content-width)\" data-start=\"1328\" data-end=\"1796\">\n<thead data-start=\"1328\" data-end=\"1349\">\n<tr data-start=\"1328\" data-end=\"1349\">\n<th data-start=\"1328\" data-end=\"1338\" data-col-size=\"sm\">Feature<\/th>\n<th data-start=\"1338\" data-end=\"1349\" data-col-size=\"md\">Details<\/th>\n<\/tr>\n<\/thead>\n<tbody data-start=\"1371\" data-end=\"1796\">\n<tr data-start=\"1371\" data-end=\"1436\">\n<td data-start=\"1371\" data-end=\"1391\" data-col-size=\"sm\">Operating Voltage<\/td>\n<td data-start=\"1391\" data-end=\"1436\" data-col-size=\"md\">5V (module supply), 3.3V logic compatible<\/td>\n<\/tr>\n<tr data-start=\"1437\" data-end=\"1474\">\n<td data-start=\"1437\" data-end=\"1449\" data-col-size=\"sm\">GSM Bands<\/td>\n<td data-start=\"1449\" data-end=\"1474\" data-col-size=\"md\">850\/900\/1800\/1900 MHz<\/td>\n<\/tr>\n<tr data-start=\"1475\" data-end=\"1536\">\n<td data-start=\"1475\" data-end=\"1501\" data-col-size=\"sm\">Communication Interface<\/td>\n<td data-start=\"1501\" data-end=\"1536\" data-col-size=\"md\">UART (TX\/RX), Baud: 9600\u2013115200<\/td>\n<\/tr>\n<tr data-start=\"1537\" data-end=\"1556\">\n<td data-start=\"1537\" data-end=\"1550\" data-col-size=\"sm\">GPRS Class<\/td>\n<td data-start=\"1550\" data-end=\"1556\" data-col-size=\"md\">10<\/td>\n<\/tr>\n<tr data-start=\"1557\" data-end=\"1590\">\n<td data-start=\"1557\" data-end=\"1571\" data-col-size=\"sm\">SMS Support<\/td>\n<td data-start=\"1571\" data-end=\"1590\" data-col-size=\"md\">Text &amp; PDU mode<\/td>\n<\/tr>\n<tr data-start=\"1591\" data-end=\"1622\">\n<td data-start=\"1591\" data-end=\"1607\" data-col-size=\"sm\">Voice Support<\/td>\n<td data-start=\"1607\" data-end=\"1622\" data-col-size=\"md\">Call in\/out<\/td>\n<\/tr>\n<tr data-start=\"1623\" data-end=\"1657\">\n<td data-start=\"1623\" data-end=\"1633\" data-col-size=\"sm\">Antenna<\/td>\n<td data-start=\"1633\" data-end=\"1657\" data-col-size=\"md\">External GSM antenna<\/td>\n<\/tr>\n<tr data-start=\"1658\" data-end=\"1713\">\n<td data-start=\"1658\" data-end=\"1678\" data-col-size=\"sm\">Power Consumption<\/td>\n<td data-start=\"1678\" data-end=\"1713\" data-col-size=\"md\">Idle: ~20\u201330 mA, Peak: up to 2A<\/td>\n<\/tr>\n<tr data-start=\"1714\" data-end=\"1741\">\n<td data-start=\"1714\" data-end=\"1725\" data-col-size=\"sm\">SIM Type<\/td>\n<td data-start=\"1725\" data-end=\"1741\" data-col-size=\"md\">Standard SIM<\/td>\n<\/tr>\n<tr data-start=\"1742\" data-end=\"1796\">\n<td data-start=\"1742\" data-end=\"1755\" data-col-size=\"sm\">Dimensions<\/td>\n<td data-start=\"1755\" data-end=\"1796\" data-col-size=\"md\">~40 \u00d7 40 mm (varies by board version)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<hr data-start=\"1798\" data-end=\"1801\" \/>\n<h3 data-start=\"1803\" data-end=\"1823\"><strong data-start=\"1807\" data-end=\"1823\">Applications<\/strong><\/h3>\n<ul data-start=\"1825\" data-end=\"2073\">\n<li data-start=\"1825\" data-end=\"1854\">\n<p data-start=\"1827\" data-end=\"1854\">SMS-based control systems<\/p>\n<\/li>\n<li data-start=\"1855\" data-end=\"1888\">\n<p data-start=\"1857\" data-end=\"1888\">Remote monitoring &amp; telemetry<\/p>\n<\/li>\n<li data-start=\"1889\" data-end=\"1924\">\n<p data-start=\"1891\" data-end=\"1924\">IoT data transmission over GPRS<\/p>\n<\/li>\n<li data-start=\"1925\" data-end=\"1963\">\n<p data-start=\"1927\" data-end=\"1963\">Vehicle tracking (with GPS module)<\/p>\n<\/li>\n<li data-start=\"1964\" data-end=\"1997\">\n<p data-start=\"1966\" data-end=\"1997\">Home\/industrial alert systems<\/p>\n<\/li>\n<li data-start=\"1998\" data-end=\"2022\">\n<p data-start=\"2000\" data-end=\"2022\">GSM-based automation<\/p>\n<\/li>\n<li data-start=\"2023\" data-end=\"2051\">\n<p data-start=\"2025\" data-end=\"2051\">Wireless sensor networks<\/p>\n<\/li>\n<li data-start=\"2052\" data-end=\"2073\">\n<p data-start=\"2054\" data-end=\"2073\">MQTT via GSM\/GPRS<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2075\" data-end=\"2078\" \/>\n<h3 data-start=\"2080\" data-end=\"2116\"><strong data-start=\"2084\" data-end=\"2116\">Compatible Boards \/ Circuits<\/strong><\/h3>\n<ul data-start=\"2118\" data-end=\"2278\">\n<li data-start=\"2118\" data-end=\"2172\">\n<p data-start=\"2120\" data-end=\"2172\">Arduino (Uno, Nano, Mega \u2014 ensure 2A power supply)<\/p>\n<\/li>\n<li data-start=\"2173\" data-end=\"2192\">\n<p data-start=\"2175\" data-end=\"2192\">ESP32 \/ ESP8266<\/p>\n<\/li>\n<li data-start=\"2193\" data-end=\"2220\">\n<p data-start=\"2195\" data-end=\"2220\">Raspberry Pi (via UART)<\/p>\n<\/li>\n<li data-start=\"2221\" data-end=\"2278\">\n<p data-start=\"2223\" data-end=\"2278\">Works with GPS modules, relays, sensors, data loggers<\/p>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>The SIM900 is a quad-band GSM\/GPRS communication module that enables SMS, voice calling, and internet data connectivity for embedded and IoT projects.<\/p>\n","protected":false},"featured_media":594,"comment_status":"open","ping_status":"closed","template":"","meta":{"postBodyCss":"","postBodyMargin":[],"postBodyPadding":[],"postBodyBackground":{"backgroundType":"classic","gradient":""}},"product_brand":[],"product_cat":[412,356,151,413,79,106,28,38],"product_tag":[153,195,208],"class_list":{"0":"post-306","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-communication-modules","7":"product_cat-electronics-components","8":"product_cat-gsm-lte-modules","9":"product_cat-industrial-control-components","10":"product_cat-iot-and-embedded-systems","11":"product_cat-iot-components","12":"product_cat-iot-development-boards","13":"product_cat-wireless-modules","14":"product_tag-gsm","15":"product_tag-module","16":"product_tag-sim900","18":"first","19":"outofstock","20":"taxable","21":"shipping-taxable","22":"purchasable","23":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product\/306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/comments?post=306"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media\/594"}],"wp:attachment":[{"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/media?parent=306"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_brand?post=306"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=306"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hamtechtechnologies.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}