After a storm my ESP8266-07 to which I had an external antenna connected died. I need to connect something quickly and I have a free ESP version 12 but on the internal antenna it does not connect. I would like to re-solder the antenna socket from the broken module to ver.12 but where do I...

It's not likely to be that simple. PCBs are designed so that the tracks have the right wave impedance, if you cut them and solder in some socket the whole intricate design goes to hell. The end result of this is usually worse, not better.

I would like to use the ESP-07 module with an external antenna (stick) should the resistor between the antenna socket and the ceramic antenna be removed? Maybe I'm thinking wrong, but if I connect the external antenna the ceramic one will be connected too.

See Link . From the description it appears to be a capacitor, not a resistor.

Thanks for the link. Turns out it can be discarded and should be a bit better with range

This is a null resistor. And it should be soldered out to use the potential of the external antenna.

ESP8266-07 - how to solder the antenna socket to the ESP8266-12?

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#1 15707932 29 May 2016 22:06

sliver1 sliver1

Level 22

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Post #1
15707932 29 May 2016 22:06

After a storm my ESP8266-07 to which I had an external antenna connected died. I need to connect something quickly and I have a free ESP version 12 but on the internal antenna it does not connect. I would like to re-solder the antenna socket from the broken module to ver.12 but where do I connect it and where do I cut off the antenna on the board?
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#2 15709873 30 May 2016 20:14

tmf tmf

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Post #2
15709873 30 May 2016 20:14

It's not likely to be that simple. PCBs are designed so that the tracks have the right wave impedance, if you cut them and solder in some socket the whole intricate design goes to hell. The end result of this is usually worse, not better.
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#3 16224289 24 Jan 2017 15:22

piterek-23 piterek-23

Level 33

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Post #3
16224289 24 Jan 2017 15:22

I would like to use the ESP-07 module with an external antenna ("stick") should the resistor between the antenna socket and the ceramic antenna be removed?
Maybe I'm thinking wrong, but if I connect the external antenna the ceramic one will be connected too.
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#4 16230803 26 Jan 2017 20:53

krzbor krzbor

Level 28

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Post #4
16230803 26 Jan 2017 20:53

See Link . From the description it appears to be a capacitor, not a resistor.
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#5 16231919 27 Jan 2017 12:16

piterek-23 piterek-23

Level 33

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Post #5
16231919 27 Jan 2017 12:16

krzbor wrote:
See: Link . From the description it appears to be a capacitor, not a resistor.

Thanks for the link.
Turns out it can be discarded and should be a bit better with range
#6 16233066 27 Jan 2017 20:05

sweter_007 sweter_007

Level 14

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Post #6
16233066 27 Jan 2017 20:05

krzbor wrote:
See: Link . From the description it appears to be a capacitor, not a resistor.

This is a null resistor. And it should be soldered out to use the potential of the external antenna.
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ESP8266-07 - how to solder the antenna socket to the ESP8266-12?

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