The Temperature Candle is a relatively simple design which essentially boils
down to a 8-pin microcontroller, a temperature sensor and voltage reference
and a RGB LED on a 1.5″ diameter PCB – the same size as a standard votive
candle. The micro flickers the LED like a candle at a color determined by
the ambient temperature. The color gives an indication of the room
temperature in reference to the recommended sleep time temperature for
babies to reduce the risk of SIDS (Sudden Infant Death Syndrome).
The candle can also blink the temperature by pressing a reset button on the
This should be a relatively cheap kit and it uses all thru-hole components
so it should be easy to assemble. Using a simple micro, it can also be a
good introduction to microcontrollers, and is designed with a jack to
connect to Microchip’s Pickit 3 programmer / debugger.
You can see more information and look at all the design files on its project
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
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