GPRS SIM900 TO NEOWAY M590 GSM SMS GPRS COMMUNICATION FLIP CARD SLOT REPLACE FOR ARDUINO
Sepcifications
1 Control of the serial port of the computer to send and receive messages, send and receive GPRS data
2 The single-chip microcomputer controls to send and receive messages, send and receive GPRS data
3 The type of telephone (none voice part cannot speak)
4 . Output
Current operating voltage: 3.7-4.2V 2 at
Default send speed: 115200