Visual Thermometer — Circuit Playground Express
This project uses the Circuit Playground Express to create a visual thermometer. The current temperature is measured and represented with LEDS.
Using Circuit Playground Express is a great way to start programming a microcontroller and components. The Playground Express contains components on one small board; including 10 NeoPixels, motion sensor, temperature sensor, light sensor, sound sensor, mini speaker, pushbuttons, slide switch, infrared receiver/transmitter, and capacitive touchpads. Without wiring and soldering, you can write programs that interact with one or all of these components.
This project uses the temperature sensor and all ten RGB LEDs (aka NeoPixels), Every ten seconds, a temperature reading is taken and represented by lighting the LEDs. First, the tens are displayed in blue followed by the ones in yellow. 79 degrees Fahrenheit is displayed as seven blue lights, followed by nine yellow lights.
