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Solder external antenna on ESP32 chip

Posted: Tue Nov 28, 2017 12:06 pm
by Saskia
There are some "hacks" around, how to increase the wifi range of esp chips. One of those, is this here with a esp8266. Basically i want to do the same with a esp32.

So my questions:
1. Can is just remove the black cap to get to the antenna? Or do i destroy something?
2. where exactly do i have to cut the pcb?

Re: Solder external antenna on ESP32 chip

Posted: Tue Nov 28, 2017 12:40 pm
by WiFive
I guess you could cut just above the gold testpoint nearest the center and solder there. Or you could buy wipy or esp32-bit.

Re: Solder external antenna on ESP32 chip

Posted: Tue Nov 28, 2017 1:32 pm
by Saskia
Just so I'm right: I cut above those two gold dots, connect them und wire the antenna on those two + on the chip (like on the esp8266 example)? I already have some 'normal' ESP32 breakout boards here dusting in my drawer, so i don't want to buy new ones only for that.

Re: Solder external antenna on ESP32 chip

Posted: Tue Nov 28, 2017 10:57 pm
by WiFive
No don't connect them the centermost one is antenna and the outer one is ground. The braid is soldered to the metal can for strength.

Re: Solder external antenna on ESP32 chip

Posted: Wed Nov 29, 2017 10:39 am
by Saskia
Great, thanks!

Re: Solder external antenna on ESP32 chip

Posted: Thu Jan 11, 2018 10:07 pm
by Finixgroup
Hi friend!:
Could you do the conversion of the pcb antenna to external antenna? I am about to perform the conversion.
I'll appreciate your answer . Best regards
Carlos