ESP32 RTC Crystal Parallel Resistor selection

[dovov97815]

Hello,
I am working on the Project in which I am using ESP32 WROOM 32E and this Project will be Battery Operated.I want to implement external RTC crystal feature.

As shown in attached image,
R4 resistor value in the range of 5M ohm to 10M ohm. So how to choose proper value, can suggest specific value of this resistor.

rtc_crystal.png (113.92 KiB) Viewed 1397 times

Thank You

[ESP_LJH]

You could mount 10M as initial value, if it does not work, you could decrease the value until crystal works.

[dovov97815]

You could mount 10M as initial value, if it does not work, you could decrease the value until crystal works.

Wow very interesting, thanks for giving this suggestion, I will never know this, if you don't tell me.