Need to activate coin cell trickle charging feature

Project-CETI / whale-tag-embedded

Source code for the software that is used to build the image for the embedded computer inside the Whale Tags to be deployed onto sperm whales for project CETI

Apache License 2.0

12 stars 5 forks source link

Need to activate coin cell trickle charging feature #44

Open MattCummings0517 opened 1 year ago

MattCummings0517 commented 1 year ago

Starting with v2.2 hardware, a lithium coin cell will be used to back up the RTC. The RTC IC has built-in features to trickle charge the cell, but these features need to be turned on in code.

Care may be needed to ensure there will be no issues if code with trickle charging enabled is inadvertently installed on the Tags that have been built so far with non-rechargeable batteries.

msalinoh commented 11 months ago

Including the command to manually enable trickle charging on v2.2 here: i2cset -y 1 0x68 0x09 0xAA