<![CDATA[[SOLVED] RF switch questions]]>Hi there,

I'm trying to figure out how to work with the external antenna. There's the RF switch which can be triggered with a WiFi(antenna=WLAN.EXT_ANT) but I'm trying to figure out what is happening since I switch back and forth between the Pycom firmware and ESP32 IDF firmware running C/C++.

Looking at the reference design I cannot quite figure out which pin is set to high/low to activate the switch. Looking at a Pighixxx scematic it should be the GPIO16 on the chip.

Could someone shed some light?

Thanks,
Martijn

]]>https://forum.pycom.io/topic/1749/solved-rf-switch-questionsRSS for NodeSun, 17 May 2026 21:05:57 GMTWed, 30 Aug 2017 14:54:59 GMT60<![CDATA[Reply to [SOLVED] RF switch questions on Wed, 30 Aug 2017 18:52:14 GMT]]>Hi there,

I'm trying to figure out how to work with the external antenna. There's the RF switch which can be triggered with a WiFi(antenna=WLAN.EXT_ANT) but I'm trying to figure out what is happening since I switch back and forth between the Pycom firmware and ESP32 IDF firmware running C/C++.

Looking at the reference design I cannot quite figure out which pin is set to high/low to activate the switch. Looking at a Pighixxx scematic it should be the GPIO16 on the chip.

Could someone shed some light?

Thanks,
Martijn

]]>https://forum.pycom.io/post/10722https://forum.pycom.io/post/10722Wed, 30 Aug 2017 18:52:14 GMT<![CDATA[Reply to [SOLVED] RF switch questions on Wed, 30 Aug 2017 15:31:21 GMT]]>Correct, it is GPIO16

Source: https://github.com/pycom/pycom-micropython-sigfox/blob/dd8a99215d768ce6ba1a0cdbf53ae576dac44338/esp32/main.c#L109

]]>https://forum.pycom.io/post/10723https://forum.pycom.io/post/10723Wed, 30 Aug 2017 15:31:21 GMT<![CDATA[Reply to [SOLVED] RF switch questions on Wed, 30 Aug 2017 15:56:43 GMT]]>@jmarcelino Yes. Perfect. Thanks for the pointer.

]]>https://forum.pycom.io/post/10725https://forum.pycom.io/post/10725Wed, 30 Aug 2017 15:56:43 GMT