This 16-CH. 12-bit PWM/Servo Driver-I2C-PCA9685 for Arduino-Raspberry Pi uses I2C 7-bit address between 0x60-0x80, selectable with jumpers.Terminal block for power input (or you can use the 0.1" breakouts on the side).Reverse polarity protection on the terminal block input.3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are slightly wider than 0.1" so you can only stack 4 next to each other on 0.1" header
GSM GPRS SIM800C Modem-RS232 is built with Quad-Band GSM GPRS engine-SIM800C, works on frequencies 850/900/1800/1900MHz. The Modem is coming with RS232 interface, which allows you connect PC as well as microcontroller with RS232 Chip(MAX232).
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.
The onboard SMA (default) and IPX mini antenna interface, SIM900A interface reserved reset.
Standby dozens of MA data can be set to provide dormancy, dormancy of 10MA low power.
The serial port circuit: support for 3.3V single chip microcomputer.
Simonk 30A BLDC ESC Electronic Speed Controller is specifically made for quadcopters and multi-rotors and provides faster and better motor speed control giving better flight performance compared to other available ESCs. Simonk 30A BLDC ESC Electronic Speed Controller can drive motors which consume up to 30A current.
