Adding documentation page for using Oneshot125

docs/Oneshot.md

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+# Oneshot
+
+Oneshot allows faster communication between the Flight Controller and the ESCs that are present on your multirotor.
+
+It does this in two ways:
+
+1. Use a signal that varies between 125 µs and 250 µs (instead of the normal PWM timing of 1000µs to 2000µs)
+
+1. Only send a 'shot' once per flight controller loop, and do this as soon as the flight controller has calculated the required speed of the motors.
+
+
+## Supported ESCs
+
+At present, only the FlyDuino KISS ESCs are able to use the Oneshot125 protocol.
+
+## Supported Boards
+
+The Naze boards are supported, and have been flight tested in a number of configurations.
+
+CC3D boards have been tested with a PPM receiver, however parallel PWM receivers might not work properly with this board.
+
+## Enabling Oneshot
+
+To configure Oneshot, you must turn off any power to your ESCs.  
+
+It is a good idea at this stage to configure your ESC for oneshot mode (by soldering JP1 in the case of the KISS ESC).
+
+Connect a USB cable to your board, and connect using the Chrome GUI app.
+
+Go to the CLI tab, and type the following:
+
+
+	feature ONESHOT125
+	save
+
+
+Then you can safely power up your ESCs again.
+
+
+## Configuration
+
+The process for calibrating oneshot ESCs is the same as any other ESC.
+
+1. Ensure that your ESCs are not powered up.
+
+1. Connect to the board using a USB cable, and change to the motor test page.
+
+1. Set the motor speed to maximum using the main slider.
+
+1. Connect power to your ESCs.  They will beep.
+
+1. Click on the slider to bring the motor speed down to zero.  The ESCs will beep again, usually a couple of times.
+
+1. Disconnect the power from your ESCs.
+
+1. Re-connect power to your ESCs, and verify that moving the motor slider makes your motors spin up normally.
+
+
+## References
+
+* FlyDuino (<a href="http://flyduino.net/">http://flyduino.net/</a>)