User Manual

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© Granwin IOT Technology (Guangzhou) Co.,Ltd
4. Precautions
4.1 Power supply
Power supply, try to use a clean power supply, the ripple is controlled within 30mV
4.2 Antenna
4.3 The module can choose the on-board antenna or the external wire antenna. When
laying the patch, the antenna should be completely clear, and no copper or wiring
should be placed
4.4 The side with IC on the module should not face the high-frequency components
on the driver, but should face the outside of the driver board
4.5 The module should be kept away from the high frequency components on the
driver
4.6 The antenna placement of the module should be taken into account when making
the PCB layout of the driver