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Reply To: [rtc] time kept without power (has cr1220)?

Home › Forums › Mayfly Data Logger › [rtc] time kept without power (has cr1220)? › Reply To: [rtc] time kept without power (has cr1220)?

2016-06-23 at 7:30 PM #1591
hank
Participant

    Thanks for the timely replies!

    Mine read out zero with positive on the battery housing and ground on the microSD. Pic hopefully attached. (Board in off state and not plugged via USB). Note, i did also change a jumper on one of the Grove connectors to 5V, no sensor/cables attached.

    The battery itself is 3V outside of housing. -h

    Attachments:

    1. mayfly_rtc_batt_test_hp01.png