M5Stack® Wireless GSM Module SIM800L Stackable IoT Development Board for Arduino ESP32 with MIC & 3.5mm Headphone Jack

Description: SIM800L is a cellular phone module, integrated SIM800L, a GSM/GPRS module, only cpmpatible with 2G network. if you want to integrate a cellular module into your design with vioce, text and SMS, this hand-solderable module is pretty nice. Series Protocol: UART Product Features: 3.5 mm phone audio jack MIC (MIC is disable by default. To enable it, you will need to weld a 0 ohm resistor at MIC-EN ) Supply voltage: 3.8V - 4.2V Recommended supply voltage: 4V Power consumption: sleep mode < 2.0mA idle mode < 7.0mA GSM transmission (a v g): 350 mA GSM transmission (peek): 2000mA Module size: 25 x 23 mm Interface: UART (max. 2.8V) and AT commands SIM card socket: microSIM (bottom side) Supported frequencies: Quad Band (850 / 950 / 1800 /1900 MHz) Antenna connector: IPX Spring Antenna on board Status signaling: LED Working temperature ran ge: -40 do + 85 C Product Size: 54.2mm x 54.2mm x 12.8mm Product weight: 16.5g PinMap: SIM800 SIM800 Pin ESP32 Chip TXD U2RXD(GPIO16) RXD U2TXD(GPIO17) RST GPIO5 Paxkage Included: 1x M5Stack SIM800L Module Applications: Nitrogen dioxide alarm Automatic Web Spider SMS-notifier Remote meter reading system Related Link: Offical Video Forum EasyLoader click to download EasyLoader 2.After downloading the software, double-click to run the application, connect the M5 device to the computer via the data cable, select the port parameters, and click "Burn" to start burning. 3.The CP210X (USB driver) needs to be installed before the EasyLoader is burned. Click here to view the driver installation tutorial Schematic: