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Reading Sensors with an Arduino. June 18, 2015 by Tim Youngblood. The ease with which an Arduino can obtain sensor values is one of the features that makes it so useful. In this experiment, we will use a Sharp GP2Y0A21YK proximity sensor to control the brightness of an LED.
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Row-columm Scanning to control an 8x8 LED Matrix. To control an individual LED, you set its column LOW and its row HIGH. To control multiple LEDs in a row, you set the row HIGH, The 16 pins of the matrix are hooked up to 16 pins of the Arduino or Genuino board. Four of the analog pins are used as digital inputs 16 through 19.
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After building my own Ambient Light for my TV (Boblight project), several users asked how to control the light intensity of the LEDs based on the ambient light. So the LEDs should be brighter during the day, and more dimm at night. This brought me to explore the use of different light sensors on an Arduino, where the cheapest and most common one is a so called LDR (Light Dependent Resistor).
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This circuit demonstrates the principle and operation of a simple shadow alarm using LDR. Shadow alarms are widely used for security purposes. A shadow alarm is a device that generates an alarm whenever a shadow falls on it. Call using Keyboard, GSM Arduino.
Arduino-controlled RGB LED Infinity Mirror: 13 Steps (with
Solar Module for Arduino is a small board that can power your Arduino board, to get a totally autonomous outdoor board. It includes a 3W solar panel that provides 5V to …
Arduino Platform - Differential Gap Control (Solar Tracker
Simple implementation of a differential gap control to track the sun East/West movement. 13,880,366 members. Sign in. Email. Arduino Platform - Differential Gap Control (Solar Tracker) If the light source then moves, a shadow is cast onto the sensor, changing its resistance. When tracking the sunlight, e. g. for a solar panel, you would
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Pirate: 4WD Arduino Mobile Robot Kit with Bluetooth 4. 0 Introduction This Pirate 4WD Arduino Robot kits is an Arduino and Bluetooth 4. 0 (BLE) ready robot kit with a set of Ultrasonic sensor (URM37). It allows you to build a fully autonomous mobile robot.
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Using Amazon Alexa to Control Ameba Arduino: Alexa is a Amazon's cloud voice service that allow developers to voice-control connected Amazon services. An example application is Amazon Echo, which is a voice-control assistant. When users speak to Amazon Echo, it analyzes the received voice an. . .