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;