Hobby-Ace CC3D Revolution Flight Controller Upgrade Version for FPV Racing Quadcopter QAV250 etc

Technical description
CPU is the STM32F405RGT6 chip, with ARM Cortex-M4 core at 210MIPS, FPU, and saturation arithmetics DSP functions.
The chip features a range of built-in hardware modules that can bo programmed once and function independently, requiring little to no CPU overhead. These include 14x multichanel timers, 3x synchronous-sampling ADC serving up to 24 channels, 2x DAC, matrix memory controller with 16-stream DMA, and other. Communication modules include USB2.0, 3x I2C, 3x SPI, 4x USART, 2x CAN and SIDO. All these modules can be configured for accessing the chip pins using a flexible switch matrix, or disabled to save power.
It even contains a real time hardware calendar if you want a wake up flight.
The software and settings are loaded through USB connector and no-hassle update function in the GCS (Ground Control Station).
The board features a built-in 915MHZ 433MHZ OPLink Modem.

Dimensions
OpenPilot products use the standard OpenPilot footprint, and hence has the same dimensions and mounting holes as the OpenPilot CC. CC3D, Revo, GPS, OSD and PipX boards.

Ports:
Servo 1-6: These are the PWM outputs that go to servos or electronic speed controllers (ESCs).
Package Including
1 * CC3D Revolution Flight Controller
2 * 4pin cable
1 * 8pin cable