Oky Newstar Technology Co., Ltd
Starter Kits,Controller Board, Sensor Modules Factory DIY Educational programmable Robot Projects manufacturer
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Sim900a Wireless Data Transmission Module GSM GPRS Board Kit With Ante
| Product Description |
1. Support 2, mobile phone 3, 4G card. 2. The onboard two set power supply interface VCC5 5V power supply, VCC4 interface, 3.5--4.5V power supply, optional power on self starting (default) and control start. 3. The onboard SMA (default) and IPXmini antenna interface, SIM900A interface reserved reset. 5. Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power. 6. The serial port circuit: support for 3.3V single chip microcomputer. TTL serial port support 7. The SIM card circuit to increase the SMF05C ESD chip. 8. Antenna circuit: guarantee short and straight, so as to ensure the signal strength. 9. PCB display screen printing mark: each interface, convenient development two times, the SIM900/A hardware is completely follow the design when the design manual. 10. A TTL level, compatible with 3.3V and 5V. 11. The two antenna interface, the default SMA straight head, connector for IPXmini antenna.
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| The control interface of each pin description | GND - GND |
Detail Photos
Circuit Diagram