LoPy4 external RTC clock
Does the LoPy4 include a 32.768kHz crystal?
I know the two XTAL32 pins can be configured as GPIO or XTAL32, but I have seen other modules with similar pinouts where the quartz crystal is included on the module, so I wondered if the LoPy4 is similar, or if I should add an external crystal and two capacitors to these pins?
For my application, I do require an accurate RTC running including when the ESP32 is in deep sleep mode.
Fick1995 last edited by
i'm having a dou't wether we can use lopy4 as a access point
or are we able to use this as a wifi hub that may be join to computer after which can it be used as a usb dongle.
@nevercast thanks for the grave digging. moving forward support on the forums should be more active and we should see less of this :) appreciate the effort.
Sorry for the gravedigging on this, but I've hit this post a few times in my Google past. So for anyone else landing on this looking for external RTC crystal on LoPy, go here: https://forum.pycom.io/topic/3162/use-of-rtc-with-xtal-and-deepsleep/
FYI, the pins you need are P19 and P20
More information is also here: https://forum.pycom.io/topic/1069/accuracy-of-rtc