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MIO is an ultra lightweight 3-axis gimbal that is specially designed for a wide variety of small cameras, features Hyper quick release with integrated HDMI, a variety of I/O interfaces and ability to start up in 2 seconds.
Static Current 400mA @12V
Dynamic Current 800mA @12V
Locked Motor Current Max 3.5A @12V
POWER: 14V-52V input range.
Connector type: JST SM02B-SFKH-TF
USB: to interface with computer or upgrade firmware.
Connector type: Micro USB type B
HDMI: to output video from the camera
Connector type: HDMI micro
MTX: Multiplex port that combines AUX , COM1/COM2/COM4 ,CAN, SBUS,PPM into a single connector. In order to access these interfaces easily, it is necessary to use MTX hub.
Connector type: Molex 20pin 501571
COM1/CAN: COM1 is a serial protocol (UART) port which is used to interface with a computer via USB. CAN is to interface with DJI Flight controller.
Connector type: JST SM06B-GHS-TB(LF)(SN)
COM2/COM3: COM2/COM3 is serial protocol (UART) port, this port is internally connected to COM2/COM3 port on the gimbal controller. COM2 is to interface with Pixhawk via Mavlink protocol or other modules that use serial protocol (UART). COM3 is reserved for future use.
SBUS/PPM: to interface with SBUS/PPM receiver. This port is internally connected to SBUS/PPM port on the gimbal controller.
Connector type: 3 pin, 2.54mm pitch
AUX: there are optional signals S1, S2, S3, S4, S5, S6, S7, S8 (0.3A max) for users to connect to other devices such as AV signal or camera trigger, ....This port is internally connected to AUX port on the tilt axis.
Connector type: JST GHR-08V-S
AUX: Provide 12V output (1A max) to power camera and accessories and optional signals S1, S2, S3, S4, S5, S6 (0.25A max) for users to connect to other devices such as AV signal or camera trigger, ....This port is internally connected to AUX port on the hyper quick release.
HDMI: This connector allows HDMI video output from the camera to the HDMI Micro connector on the QR.
A. Micro USB Cable (x1)
B. Power Cable (x2)
C. AUX Cable (QR) (x1)
D. AUX Cable (Tilt) (x1)
E. MTX Hub (x1)
F. MTX Cable (x1)
G. Pixhawk Cable (x1)
H. Bluetooth Module (x1)
I. SBUS/PPM Cable (x1)
J. Allen Key 1.5 (x1)
K. Camera Screws (x2)
L. M2x6 (x6)
Using 4xM2.5 to mount the top part onto the frame or damping isolator.
Pay attention to the arrow on the hyper quick release which indicates the home position or forward position of the gimbal.
Connect the MTX cable to the Hyper QR.
STEP 1: The marks on the top part and bottom part must be aligned. The mark on the ring should be aligned with the unlocked icon as shown in the first picture.
STEP 2: Keep everything aligned and attach the bottom part to the top part.
STEP 3: Rotate the ring clockwise until the mark on the ring aligned with the locked icon.
STEP 1: Rotate the ring counterclockwise.
STEP 2: When the mark on the ring aligned with the unlock icon, the MIO can be detached from the top part of the Hyper Quick Release.
After connecting to the power supply, the gimbal will perform a series of alignments, self tests, which last about 2 seconds and the status of the gimbal will be indicated by the Status LED color. During this time, don’t touch the gimbal or camera.
If there is a remote-control signal, changing modes or turning motors on/off by other methods will not take effect because the remote-control signal has the highest priority and will override the command.
Make sure the Hyper Quick Release is mounted to the drone and its power port is already connected to the power supply correctly. Next, let’s mount the gimbal to the Hyper Quick Release, it will be automatically powered up.
LOCK MODE: is a stabilization mode where the camera maintains orientation independently of the rest of the gimbal and the orientation can be changed by an external control signal from remote control.
FOLLOW MODE: in this mode, the camera will mimic the operator’s movement and allows one person to control camera tilt and pan without using an external device like a remote control.
SINGLE OPERATOR: using FOLLOW mode.
DUAL OPERATOR: a second operator can use a Remote Controller (SBUS, PPM) to control gimbal’s movement.
MIO has 3 working operations: Normal, Inverted, Nose Mount.
Using mode channel on remote control
Using software
Desktop software
Download at: www.gremsy.com -> Support -> Product Support -> MIO
USING USB CONNECTION
1. Loosen the thumbscrew underneath the roll bar, then gently slide the roll bar left or until roll axis remains level.
2. Tighten the thumbscrew to lock the roll bar in position.
1. Loosen the thumbscrew underneath the camera tray and the top bar knob. Then, gently slide the camera forward or backward until the tilt axis remains level.
2. Tighten the thumbscrew and knob to lock the camera and camera tray in position.
1. Rotate the tilt axis so that the lens is pointing upward.Then, loosen vertical adjustment thumbscrew, gently slide the camera mount crossbar forward and backward until the camera remains pointing upward when released.
2. Tighten the thumbscrew. Sometimes, the vertical balance could not be achieved, the front-back balance should be re-checked in this case.
1. Loosen the thumbscrew, then gently slide the pan axis slider backward/forward until it doesn’t swing and stay at any given position when released.
2. Tighten the thumbscrew to make sure pan axis slider is locked in position
Slowly increase this setting until you feel an oscillation in the tilt axis, then reduce the setting until the oscillation subsides. Make sure there is no vibration when tilting the camera up and down and when moving the gimbal in any orientation.
Slowly increase this setting until you feel an oscillation in the roll axis, then reduce the setting until the oscillation subsides. Pick the gimbal up and make sure there is no vibration when you move the gimbal around.
Slowly increase this setting until you feel an oscillation in the pan axis, then reduce the setting until the oscillation subsides. Tilt the gimbal about 20 degrees from the verticality and make sure that no vibrations are presented.
The purpose of the filters is to eliminate noise and vibration due to structural resonances in the camera, lens, or gimbal.
Setting the filters too high or too low can cause signal disturbances that can reduce the overall stabilization.
Defines the strength of the filter applied to Gyro sensor output. If the gimbal has oscillations that cannot be corrected by adjusting stiffness settings, the Gyro Filter is used to further tune the gimbal and remove the oscillation.
Defines the strength of the filter applied to motor output. If the gimbal has oscillations that cannot be corrected by adjusting stiffness settings, the Output Filter is used to further tune the gimbal and remove the oscillation.
1. If the gimbal is vibrating at a high frequency after tuning, increase the filter values.
2. If the gimbal is oscillating or rocking at a low frequency after tuning, decrease the filter values.
There are some expert parameters that normally do not need to be adjusted. Leave these parameters at default settings unless they are required for troubleshooting.
If “Auto power adjustment” is enabled, “Hold strength” will be the minimum power level required for the corresponding axis. The controller will automatically adjust power level from minimum to maximum level depending on the displacement between the current angle and commanded angle.
If “Auto power adjustment” is not selected “Hold strength” will be a constant power level provided to the corresponding axis and should be adjusted manually. This option is only recommended for advanced users.
For heavy cameras, it’s suggested to increase hold strength for each axis around 10% than the default value. If “Auto power adjustment” is not selected “Hold strength” will be fixed power level provided to the corresponding axis and should be adjusted manually. This option is only recommended for advanced users.
Defines how fast each axis will return to commanded position. To reload default expert settings just press “Default” in the expert menu.
The most widely used mode of single operation is Follow mode where the gimbal operator controls to pan and tilt of the camera. The camera movement will mimic the user’s input from the top-mount while the footage remains stable. The follow mode can be configured to be either very linear and robotic, or smooth and cinematic.
Follow mode settings is available for Tilt axis and Pan axis.
Defines how fast camera will follow the movement.
Smooth out the camera movement by adjusting this parameter. The higher the value is the smoother camera moves but at the expense of more delay in following the movements.
When the movement is out of the window zone, the camera starts to move. Within the window zone, the camera maintains its direction.
If this option is selected, the tilt axis will maintain its angle and only be controlled by remote control.
Travel of Tilt and Roll axis can be limited using UP LIMIT and DOWN LIMIT.
Set the up limit for Tilt or Roll axis (in 1 degree unit). The default values are -90 for Tilt and -45 for Roll.
Set the down limit for Tilt or Roll axis (in 1 degree unit). The default values are 90 for Tilt and 45 for Roll.
The IMU sensor used in the MIO is a combination of a high precision 3 axis gyroscope sensor and a 3 axis accelerometer sensor.
IMU board is being heated where the temperature inside is controlled around 50°C with 0.2°C accuracy. Thanks to this feature, gyro calibration is no longer required in most situations.
The MIO controller has a special algorithm to provide attitude estimation based on input data from the IMU sensor. This attitude estimation helps the controller to command motor output to compensate for camera movement.
Do not use this function, please contact Gremsy Support Engineers. Accelerometer sensor was calibrated properly at the factory to achieve accurate horizon level with special and precise equipment. Users do not need to do this unless it’s required for troubleshooting.
Thanks to temperature controlled and heated IMU, gyro calibration is not necessary as the gyro was calibrated at the factory and the temperature inside IMU remains constant around 50 degrees. However, if you notice drift during operation in extreme weather (below -20C or above 50C) please re-calibrate the gyro.
CALIB AT STARTUP: this feature is not available on the MIO
After Gyro Calibration, Gyro Offset X, Y, Z will change to a new value depending on the temperature.
MIO supports SBUS , SPEKTRUM and PPM receivers. There are some parameters to be aware of before assigning channels to the receiver.
SMOOTH: increasing this number will smooth out the movement of the corresponding axis but will also cause a delay.
SPEED MODE: when speed mode is selected, the speed of the corresponding axis will depend on how far the stick position is from the neutral position. It is recommended that TILT and PAN channels should be set to speed mode.
ANGLE MODE: when angle mode is selected, the corresponding axis will move to the angle set by current stick/knob position. It’s recommended ROLL channel should be set to angle mode.
Connect SBUS/PPM receiver to the SBUS/PPM port on the hyper quick release as shown in the picture.
The receiver must be connected to correct wires order. The SBUS/PPM port has 5V output to power the receiver, please do not use external power supply to power the receiver at the same time. Doing so may damage the electronic inside the gimbal.
There are 6 channels to assign: MODE, TILT, ROLL, PAN, TILT SPEED, PAN SPEED.
Assign MODE channel first then follow the order above because MODE channel is used to change operating modes of the gimbal and should be assigned to a 3-position switch as follows:
TILT and PAN channel should be in speed mode and ROLL channel in angle mode.
TILT SPEED or PAN SPEED could be assigned to the same channel and should be assigned to throttle stick, dial, or other non-centering control on the transmitter.
Below is an example of channel assignment to the Futaba T8FG.
Only USB connection allows upgrading firmware. Refer to Section “01. GETTING STARTED” for USB connection.
Make sure Silab USB driver is already installed. The driver can be found at: www.gremsy.com -> supports -> product support -> MIO
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