FireBeetle 2 ESP32-E u.fl

userHead Roger.James 2023-09-27 18:14:25 373 Views1 Replies

Is there a version of the FireBeetle 2 ESP32-E with u.fl connector instead of the onboard antenna? If not has anybody tried cutting the feeds to the onboard and patching one in?

2023-09-30 22:59:03

There isn't, but I have successfully implemented this sort of mod on other ESP32 SOMs which have a printed inverted F antenna (as per the firebeetle ESP32s) or PIFA for short.

 

If you can solder carefully, it is easy enough 9espcially with PTFE dielectrics and fEP jackets) to fill the braid with solder to form  tube, score and crack off the surplus leaving a neat edge which can be sweated down to the ground of the PIFA, then get the inner down to the feed. Remember to first cut the feed from the ESP32 RF pin of course! lot of the UFL flying leads you can get are with PTFE but some are lapped rather than braided screens - get braided if you can.

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