{"id":52751,"date":"2025-05-21T17:29:20","date_gmt":"2025-05-21T16:29:20","guid":{"rendered":"https:\/\/www.microplanet.ma\/?post_type=product&#038;p=52751"},"modified":"2026-10-19T17:05:47","modified_gmt":"2026-10-19T17:05:47","slug":"sim808-quad-band-gsm-gprs-gps-module","status":"publish","type":"product","link":"https:\/\/www.microplanet.ma\/en\/produit\/sim808-quad-band-gsm-gprs-gps-module\/","title":{"rendered":"SIM808 Quad-Band GSM\/GPRS + GPS Module"},"content":{"rendered":"<h3>SIM808 Quad-Band GSM\/GPRS + GPS Module<\/h3>\n<p>The SIM808 is an all-in-one module combining a quad-band GSM\/GPRS modem and a GPS receiver (L1, 1575.42 MHz). It supports voice calls, SMS, GPRS data, and satellite positioning for telemetry, asset tracking, and mobile IoT applications. This development board includes UART connectors, a microSD slot, a battery connector, and a 1.5 m antenna to simplify integration.<\/p>\n<h4>Technical specifications<\/h4>\n<ul>\n<li><strong>Quad-band GSM\/GPRS modem:<\/strong> 850\/900\/1800\/1900 MHz<\/li>\n<li><strong>GPRS:<\/strong> Class 12 (up to 85.6 kbps downlink and 42.8 kbps uplink)<\/li>\n<li><strong>GPS:<\/strong> L1 at 1575.42 MHz, single-chip receiver (internal patch antenna plus external antenna connector)<\/li>\n<li><strong>Supply voltage:<\/strong> 5 V DC via VIN or USB<\/li>\n<li><strong>Current during calls\/data:<\/strong> peak approximately 2 A<\/li>\n<li><strong>Interface:<\/strong> 3.3 V TTL UART (TX, RX), DTR, RI, NET<\/li>\n<li><strong>microSD slot:<\/strong> up to 32 GB for data or firmware storage<\/li>\n<li><strong>Battery connector:<\/strong> LiPo, 3.7\u20134.2 V<\/li>\n<li><strong>Antenna included:<\/strong> 1.5 m cable, straight SMA connector, for GPS and GSM<\/li>\n<li><strong>Board:<\/strong> PCB with PWR, NET, and GPS LED indicators<\/li>\n<li><strong>Dimensions:<\/strong> approximately 60 \u00d7 40 \u00d7 15 mm<\/li>\n<\/ul>\n<h4>Typical applications<\/h4>\n<ul>\n<li>GPS tracking for vehicles and assets<\/li>\n<li>Weather stations or remote sensors sending data over GPRS<\/li>\n<li>Alarms and remote monitoring<\/li>\n<li>Mobile IoT interfaces<\/li>\n<li>Arduino\/ESP32 prototypes with cellular connectivity and geolocation<\/li>\n<\/ul>\n<h4>Arduino example \u2013 sending an SMS and reading GPS<\/h4>\n<p>This example uses SoftwareSerial on pins 7 and 8 to communicate with the module.<\/p>\n<pre class=\"prism undefined-numbers lang-cpp\" data-lang=\"C++\"><code>#include &lt;SoftwareSerial.h&gt;\r\n\r\nSoftwareSerial sim808(7, 8); \/\/ RX, TX\r\n\r\nvoid setup() {\r\nSerial.begin(9600);\r\nsim808.begin(9600);\r\ndelay(1000);\r\n\r\n\/\/ V\u00e9rifier communication\r\nsim808.println(\"AT\");\r\nattente(\"OK\", 1000);\r\n\r\n\/\/ Activer GPS\r\nsim808.println(\"AT+CGPSPWR=1\");\r\nattente(\"OK\", 1000);\r\n\r\n\/\/ Param\u00e9trer mode GPS autonome\r\nsim808.println(\"AT+CGPSRST=0\");\r\nattente(\"OK\", 1000);\r\n\r\n\/\/ Envoyer un SMS\r\nsim808.println(\"AT+CMGF=1\"); \/\/ mode texte\r\nattente(\"OK\", 1000);\r\nsim808.println(\"AT+CMGS=\"+212600000000\"\"); \/\/ num\u00e9ro destinataire\r\nattente(\"&gt;\", 1000);\r\nsim808.print(\"Test SIM808 GPS!\");\r\nsim808.write(0x1A); \/\/ CTRL+Z\r\nattente(\"OK\", 5000);\r\n}\r\n\r\nvoid loop() {\r\n\/\/ Lire position GPS\r\nsim808.println(\"AT+CGPSINF=0\");\r\nif (attente(\"+CGPSINF:\", 2000)) {\r\nString gps = sim808.readStringUntil('n');\r\nSerial.println(\"GPS: \" + gps);\r\n}\r\ndelay(5000);\r\n}\r\n\r\n\/\/ Fonction utilitaire\r\nbool attente(const char* mot, unsigned long timeout) {\r\nunsigned long t = millis();\r\nwhile (millis() - t &lt; timeout) {\r\nif (sim808.find(mot)) return true;\r\n}\r\nreturn false;\r\n}<\/code><\/pre>\n<h4>Pinout and wiring<\/h4>\n<table>\n<thead>\n<tr>\n<th>Module pin<\/th>\n<th>Description<\/th>\n<th>Arduino UNO connection<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>VIN<\/td>\n<td>5 V DC supply<\/td>\n<td>5 V via USB or the 5 V pin<\/td>\n<\/tr>\n<tr>\n<td>GND<\/td>\n<td>Common ground<\/td>\n<td>GND<\/td>\n<\/tr>\n<tr>\n<td>TXD<\/td>\n<td>Module TX \u2192 Arduino RX<\/td>\n<td>D7 (SoftwareSerial RX)<\/td>\n<\/tr>\n<tr>\n<td>RXD<\/td>\n<td>Module RX \u2190 Arduino TX<\/td>\n<td>D8 (SoftwareSerial TX)<\/td>\n<\/tr>\n<tr>\n<td>DTR<\/td>\n<td>Reset\/power control (optional)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>NET<\/td>\n<td>Network indicator (external LED)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>GPS<\/td>\n<td>GPS NMEA output (optional)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>BAT+ \/ BAT\u2212<\/td>\n<td>3.7 V LiPo battery (optional)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol>\n<li>Solder the male headers, then connect <strong>VIN \u2192 5 V<\/strong> and <strong>GND \u2192 GND<\/strong>.<\/li>\n<li>Connect <strong>TXD \u2192 7<\/strong> and <strong>RXD \u2192 8<\/strong> for SoftwareSerial.<\/li>\n<li>Connect the SMA antenna to the external antenna connector.<\/li>\n<li>Power the board over USB, then upload the sketch.<\/li>\n<\/ol>\n<p><strong>Important:<\/strong> The UART is 3.3 V TTL. When using a 5 V Arduino UNO, level-shift the Arduino TX signal before it reaches the module\u2019s RXD. The supply must also handle current peaks of about 2 A.<\/p>\n<p><small>Keywords: wireless, call, phone, location, map.<\/small><\/p>\n","protected":false},"excerpt":{"rendered":"<p>SIM808 development board combining quad-band GSM\/GPRS, GPS, UART, microSD, battery connector, and included antenna.<\/p>\n","protected":false},"featured_media":52752,"template":"","meta":[],"product_brand":[],"product_cat":[314,316],"product_tag":[],"class_list":["post-52751","product","type-product","status-publish","has-post-thumbnail","product_cat-developpement-en","product_cat-modules-capteurs-en","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>SIM808 Quad-Band GSM\/GPRS + GPS Module | MicroPlanet<\/title>\n<meta name=\"description\" content=\"SIM808 development board combining quad-band GSM\/GPRS, GPS, UART, microSD, battery 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