OpenPilot CC3D Revolution Flight Controller + Oplink + M8N GPS + Distribution Board<br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br />1. OpenPilot CC3D Revolution<br /><br /><br /> <br />  <br />   <br />    Technical description<br />  <br />  <br />   <br />    CPU<br />   <br />    <br />     <br />     CPU is the STM32F405RGT6 chip, with ARM Cortex-M4 core at 210MIPS, FPU, and saturation arithmetics DSP functions.<br />    <br />     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.<br />    <br />     It even contains a real time hardware calendar if you want a wake up flight.<br />    <br />     The software and settings are loaded through USB connector and no-hassle update function in the GCS (Ground Control Station).<br />      <br />   <br />  <br />  <br />   <br />    Modem<br />   <br />    The board features a built-in 433MHz OPLink Modem.<br />  <br />  <br />   <br />    Dimensions<br />   <br />    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.<br />     <br />  <br />  <br />   <br />    Ports<br />   <br />    <br />     Servo 1-6: These are the PWM outputs that go to servos or electronic speed controllers (ESCs).  Power for the flight controller is typically supplied through these headers from only one of the ESCs, but in most cases, all the servo wires can be left connected. Cutting the pin from servo wires is highly discouraged.  If you feel you must disconnect three of the hot wires, use some shrink tube or electrical tape to insulate the removed pin (you may need that positive voltage at a later date!).  The positive (Vcc) and negative (Gnd) pins are indicated on this diagram and the board. In rare cases, you may need to also disconnect the ground pin if your ESCs are creating ground loop problems (indicated by a general weirdness in setup).  (see the CopterControl - CC3D -Atom Hardware Setup page, Power section, for instructions on how to remove and insulate the extra pins)<br />    <br />      <br />   <br />  <br />  <br />   <br />    Servo output pin layout<br />   <br />    <br />     Outside --&amp;gt; ground<br />    <br />     Middle --&amp;gt; 5V - 8.4V<br />    <br />     Inside --&amp;gt; signal<br />   <br />  <br />  <br />   <br />    Flexi-IO Port<br />   <br />    The receiver port can act as an input or output port depending on the configuration which is set in the Hardware Settings. Configuring the receiver port as an output port allows the user to assign more output channels then the 6 standard servo outputs.<br />     <br />  <br />  <br />   <br />    PWM -vs- PPM Recievers<br />   <br />    Please be aware that not all receivers can be configured to use a PPM output. It is the user's responsibility to research this feature in regards to the desired receiver they wish to use for PPM and ensure