40A Bidirectional Adjustable Water-Cooled Brushless ESC and Pump Switch Fits_DJI Phantom 2 this small cost-effective expansion shield

this small cost-effective expansion shield can realize SMS and data transmission in a pretty low power consumption

This shield is designed to use I2C or SPI communication protocols

4k) with USB Add-on and Spektrum SPM9X45 Receiver

Circuit Operating Voltage: 3

connect the pan-tilt to the mobile phone to charge the mobile phone

40A Bidirectional Adjustable Water-Cooled Brushless ESC and Pump Switch Fits_DJI Phantom 2 this small cost-effective expansion shieldBidirectional Adjustable Brushless ESC for Remote Control Car Pneumatic Underwater Propeller Product features: High quality components and thick copper circuit board, low temperature, low power consumption, stable performance. This product is suitable for aircraft model, remote control ship, remote control vehicle, underwater propeller