Product Parameter

Onboard SIM800C GSM/GPRS module

Onboard CH340T USB to serial chip, easy driver installation, high compatibility

Self elastic SIM card slot design, compatible with 2G/3G/4G from China Mobile or China Unicom

Micro SlM card and Nano card

The module automatically starts up when powered on and connects to the network, without the need for buttons to control the startup

Support SMS SMS sending and receiving

Supports GPRS data transmission under 2G network, which can be applied to mobile meter reading and other occasions

Supports Bluetooth data transmission, IEEE802.15 Bluetooth standard, 2.4GHz working frequency band

Support adaptive baud rate

Equipped with a red LED work indicator light, the LED light flashes every 1 second when there is no network, no SIM card, or when the SIM card is inserted incorrectly. It flashes every 3 seconds when connected to the network normally

Product Introduction

USB to GSM is a four frequency GSM/GPRS module with stable performance, compact appearance, and integrated USB to serial port chip. It can be directly plugged into a computer for debugging. The working frequency of SIM800C is GSM/GPRS 850/900/1800/1900MHz, which can be used globally. It can achieve low-power transmission of voice, SMS and data information, and is suitable for various compact product design requirements.

Product Features

Instructions for use: Connect the 2.4GHz GSM antenna to the module, insert a SIM card (note: supports Micro/Nano cards, supports China Mobile or China Unicom mobile 2G/3G/4G cards, but does not support 3G/4G networks or telecom cards), plug it into the USB port of the computer, and install the CH340 serial port driver for the first use. After the module is started, the indicator light flashes once every 1 second at the beginning, and after a period of initialization, the indicator light changes to flash once every 3 seconds. At this point, the module starts working normally. Then, the SIM800C module can be controlled through AT commands.

2. Send ATD136 ******* 38// Make a phone call, pay attention to the symbol after the phone number

return: OK

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Payment&Transportation

Official Certificate&Certificate

Multiple product supply

Company office environment

Warehouse Real Shot

Standard packaging

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