HW-353A SIM900A Module Development Board GSM GPRS

Features:
1. Single supply voltage 3.4V – 4.5V
2. HW-353A SIM900A Module Development Board GSM GPRS
3. The keypad and SPI display interface will give you the flexibility to develop customized applications.
4. Serial port and Debug port can help you easily develop your applications.
5. One audio channel includes a microphone input and a speaker output.
6. Programmable General Purpose Input & Output.

Pin Description:
1. GND – GND
2. SIMR SIM900A RXD, TTL level, can not be directly connected to the 232 level
3. SIMT SIM900A TXD, TTL level, can not be directly connected to the 232 level
4. RST – SIM900A reset, active low
5. VCC-MCU when the SIM900A module and 5V TTL level communication, this pin is connected to DC 5V; when the level of communication of SIM900A and 3.3V TTL, this pin is connected to DC 3.3V.
6. VCC5-DC 5V input.
7. VCC4-DC 3.5-4.5 input
Note: You need expert soldering job t

Specification:
● Module: Sim900A
● Size: 50mm x 48mm
● Net weight: 28g

Package Includes:
1 x HW-353A SIM900A Module Development Board GSM GPRS
1 x Module Power Cable
1 x Screw