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USB GSM Develop Board Message GPRS Message USB Serial Port CH340 Module
Description:
- Due to the GSM chip power, some PC USB port can not be used. Please check your PC USB port to see whether it can drive motive hard disk. Some old machine may not recognize the hard disk. You can add external power supply, or use HUB with power supply, or use USB extension cable with power supply
- USB cable all adopts CH340G of good quality
- GSM module size is m590 dual frequency module
- Adopting imported card base, can change card while power on
- Back capacitor 1000uf solves the inefficiency of USB power supply
- Adopting 15cm PCB antenna, good signal
- This module can realize PC receiving mesages or calling numbers