Specifications:

• Arduino 51 STM32 AVR MCU compatible
• Prototype expand
• The frequency is 850/900/1800/1900 MHz
• Power supply range: voltage is 5-12V; current is 1A or more (the current is very important).
• Operating temperature range: -40 °C to +85 °C
• Communication interface: The TTL level serial interface compatible 2.85/3.3/5V
• LED: Two led, the Net led and the RING led.
• Size: 48*50mm
• SIMCARD: micro SIMCARD holder

Features:

• TTL level serial port compatible with 3.3V and 5V microcontrollers.
• The initial use of computer debugging, it is recommended to use CP2102 USB-TTL module to power supply and communication;
• Using the MCU control module, you can also using the USB – 232 monitoring return data on the instructions, great convenience to find the problem, especially suitable for 51 MCU.
• Standby in 30MA or so, you can set the sleep state of about 10MA low power consumption.
• Support SMS, GPRS data transmission, send MMS, DTMF, HTTP, FTP, PPP dial-up and other functions.
• The hardware contains one channel reset pin. This reset pin can be used to resolve a problem with the module.
• Development board supports 2G / 3G / 4G Unicom or mobile phone card.

No Guarantee No Warranty

Actual product may vary from the product photograph displayed above. Photograph just for reference.