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Traffic Lights Controlled by Arduino

Project showcase by lmsousa

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  • 2 comments
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PWM Demonstration Board (Using Arduino)

Project showcase by lmsousa

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  • 3 respects

Temperature and Humidity Logger (Using Arduino)

Project showcase by lmsousa

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  • 3 comments
  • 31 respects

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Comments 2

  • Traffic Lights Controlled by Arduino 4 months ago

    Thanks for your comment.
    Traffic sensors were one of the first ideas during the project phase. However we preferred to use the 2 pushbuttons in the circuit (S1 and S2) to signalize pedestrians request to cross the street. Changing the program, is possible to use the pushbuttons to simulate that kind of sensors. The challenge is on, if someone wants to change it

    PS: pushbuttons also have other functions:
    • Pressing both at the same time will start a light test sequence.
    • After power on, system will start with blinking yellow on both vias. Pressing one of the buttons will start the normal working mode.

    But program can be changed to do what is required. That’s the fun part. Changing and adapting.

  • Temperature and Humidity Logger (Using Arduino) 4 months ago

    Thanks for your comment.
    I chose this display kit from Adafruit because I can have a LCD display and 5 buttons, using only the 2 pins of the Arduino's I2C (and of course the power lines). The main objective was to save Arduino input/output pins for other purposes.
    The kit itself is easy to assemble, just solder all the components in the right place. This kit is a shield and mounts on top of Arduino Uno, so hardware connection is not a big problem. Just sits on top. If you prefer to put the display elsewhere, the connection is also easy. You just need two I2c wires, plus power lines (+5/Gnd).
    For more information about this kit and libraries needed, please refer to:
    https://learn.adafruit.com/rgb-lcd-shield
    https://cdn-learn.adafruit.com/downloads/pdf/rgb-lcd-shield.pdf
    https://learn.adafruit.com/assets/1439

    I will also briefly try to improve the description of the project.
    Hope this helps
    Thanks again,
    Luis Sousa

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