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SIM800L GSM/GPRS module is a miniature GSM modem, which can be integrated into a great number of IoT projects. You can use this module to accomplish almost anything a normal cell phone can; SMS text messages, make or receive phone calls, connect to the internet through GPRS, TCP/IP, and more. The module supports quad-band GSM/GPRS…
This board features a serial interface and is based on the SIMCOM A7670C LTE modem. The serial interface allows for simple communication with a computer or laptop via a USB to Serial adapter or TTL converter. AT instructions are used to communicate with the A7670C. It includes a SIM card holder and an SMA antenna…
The SIM800A Quad-Band GSM/GPRS Module with RS232 Interface is a complete Quad-band GSM/GPRS solution in an LGA(Land grid array) . It can transmit voice, SMS, and data with minimal power consumption and supports the 850/900/1800/1900 MHz bands. Using the USB to Serial connector or the RS232 to TTL converter, the RS232 interface makes it simple to…
SIM800A GSM GPRS Module is an upgraded version of SIM900A, you can create various projects using this module, For example, IoT gateways, security alert systems, DTMF-based home automation, etc. Integrating pulse source and buffer IC is compactly designed but still retains the necessary elements of the Sim module design such as logic signal transfer circuit using…