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The NeoPixel Ring - 12 x 5050 RGBW LEDs w/ Integrated Drivers - Natural White - ~4500K is an addressable LED product made for colorful effects
open-source software that supports a wide range of boards
A real-time clock (RTC) keeps the time going even when the Arduino is unplugged
or a matching expansion shield for faster setup
Based on the PT2262
Atlas Scientific EZO EC Conductivity Circuit sim800c The NeoPixel Ring - 12The Atlas Scientific EZO Conductivity Circuit is a compact embedded module for reading electrical conductivity, total dissolved solids, salinity, and seawater specific gravity. It is a great choice for water quality systems, hydroponics, aquaponics, lab builds, dosing systems, and automated monitoring projects. This circuit gives your Arduino, Raspberry Pi, ESP32, or custom controller access to reliable conductivity data without building the analog
