Search found 2109 matches

by WiFive
Tue Jan 17, 2017 2:49 am
Forum: General Discussion
Topic: ESP32 separate antennas for BT and WIFI
Replies: 4
Views: 2012

Re: ESP32 separate antennas for BT and WIFI

ESP_Sprite wrote:Why would you?
The only reason I can think of is the desire to localize or reduce interference on Bluetooth signals but have larger gain on wifi.
by WiFive
Tue Jan 17, 2017 1:35 am
Forum: Hardware
Topic: Calibrating ADC
Replies: 5
Views: 2974

Re: Calibrating ADC

by WiFive
Tue Jan 17, 2017 1:18 am
Forum: General Discussion
Topic: ESP32 separate antennas for BT and WIFI
Replies: 4
Views: 2012

Re: ESP32 separate antennas for BT and WIFI

You could use an external rf switch like pycom boards do and have separate WiFi or Bluetooth modes not simultaneous operation.
by WiFive
Mon Jan 16, 2017 3:58 am
Forum: General Discussion
Topic: ESP32 and CR2032 battery
Replies: 11
Views: 11459

Re: ESP32 and CR2032 battery

just uncheck CONFIG_ESP32_PHY_AUTO_INIT option ("Component config" -> "WiFi" -> "Initialize PHY in startup code"), and then do PHY initialization in app_main, selecting the desired RF calibration option (full | partial | none) OK, excellent. So what do we miss out on skipping partial cal? What is t...
by WiFive
Mon Jan 16, 2017 2:19 am
Forum: General Discussion
Topic: ESP32 and CR2032 battery
Replies: 11
Views: 11459

Re: ESP32 and CR2032 battery

The default phy init is for partial rf calibration, right? Shouldn't it be possible to skip all RF calibration at the possible consequence of reduce RF performance (assuming there is stored cal data)? Battery capability in this mode should be testable by removing the external power after the device ...
by WiFive
Mon Jan 16, 2017 12:07 am
Forum: ESP32 IDF
Topic: Adding, removing and re-adding an ISR handle in the GPIO sample ...
Replies: 1
Views: 1082

Re: Adding, removing and re-adding an ISR handle in the GPIO sample ...

Its just a demo, in the real world some things would happen in between removing it and readding it.
by WiFive
Sun Jan 15, 2017 3:03 am
Forum: General Discussion
Topic: I think I just bricked ESP32
Replies: 2
Views: 1434

Re: I think I just bricked ESP32

Erase complete flash with esptool, make sure your SDK and submodules and toolchain up to date, generate a new sdkconfig, do make clean and make flash.
by WiFive
Sat Jan 14, 2017 8:16 pm
Forum: Hardware
Topic: ESP-WROOM-32 flash fail
Replies: 6
Views: 3630

Re: ESP-WROOM-32 flash fail

Is it always at 0x00084000?

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