Experimentalist
Well-known member
Hi, I wonder if anyone knows if I can read the VBat RTC clock battery backup voltage internally somehow or whether I would have to add an external voltage divider or similar to monitor the coin cell for low voltage? My current project is designed to use any Teensy from the following list depending on capability requirements:
Teensy LC
Teensy 3.0
Teensy 3.1
Teensy 3.2
Teensy 3.5
Teensy 3.6
Teensy 4.0
I realise that the Teensy LC does not have this capability i.e. battery backup for the RTC
Teensy LC
Teensy 3.0
Teensy 3.1
Teensy 3.2
Teensy 3.5
Teensy 3.6
Teensy 4.0
I realise that the Teensy LC does not have this capability i.e. battery backup for the RTC
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