User's Manual

7. Referencedesign

PCB onboard antenna is built in LSD4WF-2MD05106 module, users should using onboard antenna

design need to be cautious that：

1, No components or GND on antenna area of user board

2, Keep antenna away from metal, stay over 10mm away from surrounding higher components.

3, Antenna can’t be covered by metal case and it should be over 10mm away from plastic casing.

During specific design, users can consult the Lierda technical engineer to assist in the place of the

module and related Layout.

8. Developingtool

Lierda would provide a complete set of LSD4WF-2MD05106 development kit for customers to get

familiar with the application and development of the module. Users can configure and debug the

parameters of the LSD4WF-2MD05106 module through the USB interface and the function test. This

development board can directly get power from the USB interface, it also support lithium battery and DC

5~18V DC current supply, convenient for the user.

Pic 1-6 Deve

loping board (front)