• https://github.com/iamericmin/Time-MachiĀ­ne-Mk.-IV/blob/master/clock_mk4.js Here's the code. I put it in a link to make my response more concise.

    I have two seven segment LEDs and five 1206 SMD LEDs, all blue. I know, it's quite a load for the tiny battery. I'm only an amateur so I'm not familiar with the term "duty cycle." I've heard it before but never understood what it was. I just keep all the LEDs on full brightness whenever they are activated. Since it's a watch, they LEDs turn on for about two seconds when a button is clicked. I multiplexed the segments so there's also some fast computation/timing going on too. The button is clicked I think about 5 times an hour, which means the LEDs are activated for 10 seconds an hour, or 240 seconds(4 minutes) a day.

    I thought NRF52 modules automatically went to deep sleep?

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