OurWeather V2 Upgrade Kit Feb 10, 2020 16:04:42 GMT -8 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by SDL on Feb 10, 2020 16:04:42 GMT -8 No clock needed with the ESP32. If you want to use a DS3231 anyway, we have a Grove connected one available.BPshop.switchdoc.com/products/switchdoc-labs-ds3231-at24c32-eprom-battery-and-software