LOLIN D32 Pro external antenna mod (U.FL/IPX)

at2hu4u
Posts: 2
Joined: Tue Mar 05, 2019 1:18 pm

LOLIN D32 Pro external antenna mod (U.FL/IPX)

Postby at2hu4u » Tue Mar 05, 2019 1:31 pm

I recently ordered a some D32 Pro boards. They are going in a metal chassis, so I would like to use an external antenna. I have noticed that the D32 Pro PCB has the pad footprint for a SMD male U.FL connector (labelled J39), but it is unpopulated and I cannot find any documentation or any info on people using it.

Can I simply solder the U.FL connector onto this pad and use it without further modification of the board? Or will the PCB trace antenna need to be disconnected somehow?

Thanks
Attachments
d32pro.png
D32 Pro U.FL pad
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ESP_Sprite
Posts: 9766
Joined: Thu Nov 26, 2015 4:08 am

Re: LOLIN D32 Pro external antenna mod (U.FL/IPX)

Postby ESP_Sprite » Tue Mar 05, 2019 8:55 pm

R14/R15 controls the routing of the antenna signal; apart from adding the connector you'd also have to switch the resistor there to the opposite position.

at2hu4u
Posts: 2
Joined: Tue Mar 05, 2019 1:18 pm

Re: LOLIN D32 Pro external antenna mod (U.FL/IPX)

Postby at2hu4u » Wed Mar 06, 2019 12:15 am

Excellent, thanks for the quick response. I'll try it when the boards arrive. Thank you!

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Civilduino
Posts: 3
Joined: Thu Jun 27, 2019 9:33 am

Re: LOLIN D32 Pro external antenna mod (U.FL/IPX)

Postby Civilduino » Thu Jun 27, 2019 9:40 am

Hi,

I want to do the same with my D32pro board, did this worked for you?

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