User Manual

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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；

4.7 For the module with the antenna welded, there are front welding and back

welding methods. If you find that the module with the antenna welded on the front is

not easy to place, you can consider using the module with the antenna welded on the

back.