User Manual

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Please note that the G4 standard version is subject to interference in outdoor strong sunlight

reflection environments.

Power demand

During the development process, since the drive current of the USB interface of each platform or the

USB interface of the computer may be too low to drive the G4, the external power supply of the +4V

to the G4 needs to be provided through the USB_PWR interface of the USB interface board. It is not

recommended to use mobile phone power bank because the voltage ripple of some brands of power

bank is too large.