SIM900A MINI V4 Wireless Data Transmission Module GSM GPRS Board Kit

Model Number:SIM900A Phase:Single Phase Current Type:DC Features: Onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 3.5v-4.5V power supply, optional power on self starting (default) and control start. Onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset. Size: 49*50mm. Weight: 38g Support 2, mobile phone 3,4G card Serial port circuit: support for 3.3V single chip microcomputer TTL serial port: support 3.3 and 5V single chip microcomputer. Antenna circuit: guarantee short and straight, so as to ensure the signal strength. The computer can give early computer debugging USB module power supply, a very large amount of data under the condition of the recommended current more than 1A. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. Package Included: 1 x SIM900A V3.9 kit 1x Power Cable 1x Antenna Useful Links: https://www.instructables.com/id/Using-the-Sim900sim900A-mini-module-with-Arduino-U/