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Temperature Display with Corresponding NeoPixel Ring Color

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This is a small temperature display using a OLED with a NeoPixel Ring around it using MQTT on a ESP8266 and sending data to the on board ATmega328p. It will cycle on a timer though environmental data from other nodes in the house. The LEDs represents the temperature based on color to give an idea of the temperature in the home or apartment I also added a PIR to turn off the LEDs when no one is around since this is designed to run off a LiPo battery. The core is running DomotiGA (Home automation core) and Mosquitto (MQTT broker). Part of this project is exploring the ESP8266 and learning MQTT.

Full project build here at Hackaday.io.


Featured Adafruit Products!

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NeoPixel Ring – 16 x 5050 RGB LED with Integrated Drivers: Round and round and round they go! 16 ultra bright smart LED NeoPixels are arranged in a circle with 1.75″ (44.5mm) outer diameter. The rings are ‘chainable’ – connect the output pin of one to the input pin of another. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside the LED. Each one has ~18mA constant current drive so the color will be very consistent even if the voltage varies, and no external choke resistors are required making the design slim. Power the whole thing with 5VDC (4-7V works) and you’re ready to rock. Read more.


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