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Step 5Create an Ambient Display
If your sensor is working properly, you can add an ambient display to show the information.
My LED's are paired such that each color is illuminated by two LED's. To do this, attach the 'in' (short) lead of each color together, and use a low-value resistor before connecting to the Arduino. Connect the ground (longer) lead of all LED's and attach to ground on the Arduino.
Once the LED's are connected, use the candle-holder to house the display. Since the candle holder is made of aluminum, you may want to put an insulator such as a piece of plastic, on the bottom of the container before inserting the LED's to prevent the circuit from shorting out.
My LED's are paired such that each color is illuminated by two LED's. To do this, attach the 'in' (short) lead of each color together, and use a low-value resistor before connecting to the Arduino. Connect the ground (longer) lead of all LED's and attach to ground on the Arduino.
Once the LED's are connected, use the candle-holder to house the display. Since the candle holder is made of aluminum, you may want to put an insulator such as a piece of plastic, on the bottom of the container before inserting the LED's to prevent the circuit from shorting out.
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