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Hobbypower Pixhawk PX4 V2.4.8 32Bit 1G ARM Flight Controller with Shock Absorber for FPV Quadcopter Multicopter
This board integrates with and new ARM 32bit chip. Features - Advanced 32 bit ARM high performance processor, can run RTOS NuttX real time operating system; - 14* PWM/ actuator output; - Bus interface (UART, I2C, SPI, CAN); - Integrated backup power supply and failure backup controller, the main controller can be safely switched to backup control; - Provide automatic and manual mode; - Provide redundant power input and fault transfer function; - Color LED lamp; - Multi tone buzzer interface; - Micro SD to record flight data; Processor - 32 bit 

Price is $140.00

Price: $139.8