This is mini GSM / GPRS core board. It supports dual-band GSM/GPRS network, available for GPRS and SMS message data remote transmission.
The board features compact size and low current consumption. With power saving technique, the current consumption is as low as 3mA in sleep mode.
It communicates with microcontroller via UART port, supports command including GSM 07.07, GSM 07.05 and Ai-Thinker enhanced AT Commands.
Features:
- Working frequency: 850 / 900 / 1800 / 1900MHz
- Working voltage: 3.3-4.2VDC
- Working Current: maximum of 2A
- Sleep Current: 3mAh
- Communication Interface: TTL serial port
- Baud rate: 115200bps and it can also be set by AT command.
- Interface logic voltage: 3.3V
- Make and answer phone calls using a headset and electret microphone.
- Send and receive SMS messages.
- Send and receive GPRS data (TCP/IP, HTTP, etc.) .
