SIM800C Development Board Quad-band GSM GPRS Bluetooth Module w/Antenna inm

Product Features:1. Input voltage range of 5V-20V DC, power supply range for a variety of power supply occasions, students and projects to use more convenient, GPRS module communication peak current is very large, low voltage, so the higher development board power supply voltage, current The smaller the power supply pressure, the smaller the integration of the gprs module into the product, the power board of the development board needs to be taken into account, making the power line more than 1mm wide, as short as possible;2 module connected to the power automatically connected to the network connection, no need to control the boot button, power on the direct start, eliminating the need for a boot process, set the boot pin, you can control the user to control the machine;3. Module TTL with level conversion circuit, compatible with a variety of single-chip serial port. Do not need to convert directly connected;4. Audio interface pin out the way to facilitate the test, set aside headset