Search found 4 matches

Go to advanced search

by Sudheesh
Fri Oct 03, 2025 2:12 pm
Forum: Hardware
Topic: ESP32-P4 RTC with Backup Battery – How to Enable and Use?
Replies: 1
Views: 1932

Re: ESP32-P4 RTC with Backup Battery – How to Enable and Use?

Anyone know about this? Please reply.
by Sudheesh
Fri Sep 05, 2025 6:20 pm
Forum: ESP-IDF
Topic: Using RTC with Backup Battery on ESP32-P4
Replies: 7
Views: 3494

Re: Using RTC with Backup Battery on ESP32-P4

Thank you,ahsrabrifat.
I am not familiar with the configuration. Could you please share any documentation on that? I am using ESP-IDF v5.5.
by Sudheesh
Thu Sep 04, 2025 5:17 am
Forum: ESP-IDF
Topic: Using RTC with Backup Battery on ESP32-P4
Replies: 7
Views: 3494

Using RTC with Backup Battery on ESP32-P4

Hi everyone,

I’m new to ESP and currently working with the ESP32-P4 on a custom board. I want to use the RTC with a backup battery so that it keeps running when the main power is removed.

I have connected VBAT to a CR1220 backup battery, following the ESP32-P4 datasheet.

I have a few questions ...
by Sudheesh
Tue Aug 26, 2025 1:25 pm
Forum: Hardware
Topic: ESP32-P4 RTC with Backup Battery – How to Enable and Use?
Replies: 1
Views: 1932

ESP32-P4 RTC with Backup Battery – How to Enable and Use?

Hi everyone,

I’m new to ESP32 and currently working with the ESP32-P4 on a custom board. I want to use the RTC with a backup battery so that it keeps running when the main power is removed.

VBAT is connected to a CR1220 backup battery.

RTC_POWER is routed through resistors R115 (0Ω).

I’ve ...

Go to advanced search