rabbitcreek shared this lunar light tide clock, based on Luke Miller’s Simple Tide Clock, on Instructables. The build features 3D printed moon and enclosure, NeoPixels, an AT24C32 IIC RTC and an ESP32 CP2104 WiFi Bluetooth Module. My favorite part of the build is the ability to have the NeoPixels display different colors on special days.
The design is based on a ESP32 microcontroller attached to a real time clock with battery back-up running a tide program that allows it to output a light based corona that designates high and low tide. The microcontroller will run the tide script endlessly as long as it has power, requiring no internet connection for its calculations.
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