LoPy4 external RTC clock
Electrozest last edited by Electrozest
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.
Paul Thornton last edited by
@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.
nevercast last edited by
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