GoBoard B2 User Manual
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6.6
App Calibration Sub-Page (Balance Control Mode)
Figure 12
– App Calibration Sub-Page
Calibration page is used to calibrate the weight sensor (load cells).
6.6.1
Weight Sensors Calibration Theory
There are two calibration constants of weight sensors. One is called offset and other is called gain. If the device is idle
i.e. there is not any rider standing on the skateboard and the weight sensors left or right (can be seen on device
information page) is not zero, the offset is needed to be calibrated. If the weight sensor values (left and right) both are
approximately 0, the offset is correct. If we put a heavy load about 10-40 Kg on the left corner of the skateboard and see
the deflection in left weight sensor value on device information page is not nearly equal to the weight we put on the
corner of the skateboard, it means the gain is needed to be calibrated for left weight sensor. Same thing we can repeat
for right weight sensor to check if its gain constant is correct or not. By default when the balance mode has not been
entered or the remote control is disconnected, the offset calibration is automatically happening every moment. Once you
get on enter the balance control mode, it is automatically disabled.
6.6.2
Enable Zero Calibration Tab
This is the replica of function mentioned in earlier in section 4.6.3. This process disables auto calibration function of
weight sensor and accompanies an alarm which lasts for 5 seconds and it is terminated by a beep. Make sure during this
process, your skateboard is placed perfectly flat on the ground and there should not be any weight on the skateboard.
Also the remote control should be powered off. This function cannot be enabled again unless you restart your
skateboard.
6.6.3
Zero Calibration at Every Power on Tab
This has not any function in the current version.
6.6.4
Advanced Calibration Tab
To calibrate the gain of left/right weight sensor, you must need to disable auto calibration function of weight sensors
first and then put a known weight (10-40 Kg) on the left/right corner of the skateboard. Then enable the advance
calibration tab. A drop down menu appears. Now select the number of left/right column equal to the weight you put on
the left/right corner of the skateboard. After that, just press ‘Done’ to calibrate gain. You need to repeat this process
individually for left and right weight sensors. But before everything, make sure the skateboard is powered on, remote is
