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{{DISPLAYTITLE: Optional features explanation|noerror}}
{{TOC_MBPlus}}

At the moment we offer two additional features for MICROBEAST PLUS: the '''RPM Governor''' and the '''AttitudeControl''' function. All MICROBEAST PLUS units can be upgraded with these functions by (paid) software update. Additionaly these functions are already included in ProEdition devices.

===RPM Governor ===

With MICROBEAST PLUS you have purchased an electronic control system that continuously detects and controls the commands from the pilot. As a result the system is constantly aware of how the drive system will be burdened. The '''RPM Governor''' system uses this advantage to control the motor rpm. Contrary to conventional motor control systems that only monitor the engine speed, MICROBEAST PLUS can thus react sooner to speed changes. A separate engine governor system is no longer required for nitro helicopters and electric models can be used with a simple (cheap) speed controller without additional features such as soft start or governor mode. The desired rotor speed is specified via the remote control transmitter and MICROBEAST PLUS controls the throttle servo or speed controller accordingly, so that the predetermined head speed is maintained from takeoff to landing. MICROBEAST PLUS offers an integrated soft start for spooling up the rotor before takeoff and a quick start to regain head speed in a controlled manner when practicing autorotation maneuvers. The system is suitable both for electric and nitro/gas helicopters. Using the proven „Easy Setup“ concept no additional equipment is required for programming (apart from your remote control system) and the initial setup is done within minutes.
'''Note:''' The RPM Governor function can only be used in combination with a [[Manuals:MB_Plus:Receiver_Installation/en#Single-Line_receivers|single-line receiver]] or [[Manuals:MB_Plus:Receiver_Installation/en#Single-Line_receivers|Spektrum remote satellite]]. When using a receiver with [[Manuals:MB_Plus:Receiver_Installation/en#Standard_receivers|standard connection layout]] there is no option for connecting the rpm sensor and throttle servo/ESC and no connector for throttle control.
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'''Preparations for RPM Governor usage (optional)''' 

To use the RPM Governor function of Microbeast PLUS it is necessary that Microbeast PLUS is able to measure the motor speed. Therefor the separate purchase of a motor rpm sensor is required. Additionaly you need the rpm sensor adapter cable (Order Nr. BXA76401) to be able to connect the sensor to your Microbeast PLUS unit and power it from there. When using an electric helicopter it is possible that your speed controller already supplies a rpm signal output. In this case no additional accessories are required as you can directly connect this signal wire's connector to the front pin board of Microbeast PLUS.

When using a '''nitro helicopter''' remove the servo horn from the throttle servo before powering up the system or do not connect the throttle servo linkage yet, in order to avoid blocking and in consequence damage of the servo due to incorrect setting.

Using an '''electric model''' ensure that the speed controller is programmed correctly and that the travels for the throttle channel have been adjusted in the transmitter if necessary. '''Note that the speed controller itself must not be operated in a (heli specific) governor mode, but must be operated in a simple motor control mode that allows to control the motor rpm as direct as possible.''' The throttle signal must not be filtered by the ESC and should be processed as linear as possible. This ensures that the control loop of Microbeast PLUS can govern the motor rpm optimally. Also you should switch off any "soft start" function, as this will be done by Microbeast PLUS (only necessary for firmware version 4.1.x and lower). Some electric speed controllers offer a special „External control mode“ or „Flybarless mode“ which meet these requirements. If your motor controller does not have such a mode, we recommend to select a mode that typically offers such behavior, like a mode for fixed wing aircraft. Note, however, that no brake function (which is required for electric gliders) must be active and that the throttle response should be set to maximum speed, if such a feature is provided.
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{{QUOTE|[[File:Warning.png|18px|sub]] Pay attention to your own safety and the safety of other people and property in your vicinity when using our product. When using helicopters with nitro/gas engines make sure that the motor will not start when making adjustments to the system. When using a gas engine always keep the ignition system deactivated! 
 
[[File:Warning.png|18px|sub]] For electric helicopters remove the motor pinion from the main gear during initial setup. '''Warning! Risk of injury!''' Never touch the motor when it‘s running. Always keep a save distance to all rotating parts of the helicopter.}}
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===AttitudeControl (optional)===
With '''AttitudeControl''' MICROBEAST PLUS can determine the absolute position in space of the helicopter on the roll and pitch axis, regardless of the position in which the helicopter is currently located. This can be used as flying aid and you can choose between five different operation modes:
* Bail out rescue mode (with/without collective pitch)
* 3D – Mode (with/without collective pitch)
* Flight trainer mode

AttitudeControl helps you to learn new maneuvers and reduces the probability of crashing significantly. If AttitudeControl is switched on in flight, the helicopter will be oriented in a nearly horizontal position, depending on the selected mode always in normal or also in inverted flight. So the helicopter can be brought in a save position by the press of a button, i. e. if the pilot becomes disoriented. Beginners can use AttitudeControl permanently (preferably in the „Flight trainer mode“), whereby the helicopter loses the peculiarity of having to be constantly controlled by the pilot. While AttitudeControl is switched on the pilot can simply release the sticks for aileron and elevator and the helicopter will be held almost horizontally without external control commands.
When the term „AttitudeControl“ is used in the further course, in general reference is made to the function of the artificial horizon, irrespective of a particular operating mode such as „Bail out rescue mode“, „3D – Mode“ or „Flight trainer mode“!
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'''Operating principles of AttitudeControl'''
AttitudeControl can be enabled or disabled via [[Manuals:MB_Plus:Parametermenu_L/en|Parameter menu point '''L''']] by selecting one of the operating modes as mentioned above. Only if AttitudeControl is enabled, i.e. one of the five operating modes is selected, then AttitudeControl can be activated in operation via the remote control transmitter. ''Enable/disable'' and ''activate/deactivate'' are therefore to separate conceptually!

For the use of AttitudeControl it is strongly recommended to use a single-line receiver, since for activating AttitudeControl in flight an additional control channel is needed. Almost every manufacturer of remote control systems offers such a receiver for his system and Microbeast PLUS supports almost all types of single-line protocols. The additional control channel allows to activate AttitudeControl before, during and after the flight via the remote control transmitter, so that the helicopter is stabilized depending on the selected operating mode if required. As long as AttitudeControl is deactived the helicopter can be flown as usual and Microbeast PLUS solely works as flybarless stabilization system. Preferably use a switch or push button on the transmitter that actuates the specific channel for activation/deactivation and that is safe and easy to reach.

Alternatively, the already existing channel for the tail gyro gain can be used to additionally switch AttitudeControl on and off, e.g. if a standard receiver is used (here only 5 channels can be plugged into Microbeast PLUS) or a transmitter with only six channels is used. This alternative, however, is far less convenient as it may require some complex programming of the transmitter, especially if several flight modes are programmed with different tail gyro sensitivity settings on the transmitter.

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