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Showing posts with the label LED

Arduino LED Temperature Indicator

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Above is a simuation.  Click the "Start Simulation" button to begin.  Click on the sensor labled "TMP" to change its value: the LEDs will light themselves according to the sensor's reading. This design is made to keep track of the temperature in a room. You give it the parameters you want and it will light a blue LED if it is too cold, a red LED if it's too hot, and a green one if it's just right. You will need: Arduino board:  https://amzn.to/2DLjxR2 Breadboard:  https://amzn.to/2RYqiSK Jumper wires:  https://amzn.to/2Q7kiKc 3 220Ω resistors (red-red-brown):  https://amzn.to/2S2sV5R 3 LEDs (colors of your choice):  https://amzn.to/2S5PFlM A temperature sensor (mine is an LM35, but most should work):  https://amzn.to/2ORLHuQ Step 1: Make the Circuit Red LED goes to digital pin 4 through one of the resistors, and ground Green LED goes to digital pin 3 though a resistor, and ground Blue LED goes to digital pin 2 t...

Arduino Paper Controller (Buttons, Slider)

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This project allows you to draw your own controller to be used with anything.  It utilizes capacitive sensing and the conductive properties of graphite to send data to an Arduino board. Materials: Alligator clips: https://amzn.to/2qYmKEB Arduino:  https://amzn.to/2DLjxR2 Breadboard:  https://amzn.to/2RYqiSK Jumper wires:  https://amzn.to/2Q7kiKc 10M Ohm Resistors  (x3):  https://amzn.to/2DMx3Ux Pencil Paper Servo Motor:  https://amzn.to/2S6E5GZ LED (x2):  https://amzn.to/2S5PFlM resistors for LEDs (Usually 220 Ohm)   (x2):  https://amzn.to/2DMx3Ux Step 1: Draw Controller You are literally drawing your controller on a piece of paper: Be sure to use pencil (graphite is conductive) Make a few buttons and maybe a slider or two.   Be sure to draw a line leading to the edge of the paper to give room to the alligator clips Step 2: Make Circuit I forgot to include the two led resistors (jus...