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Arduino Project – LED Skull 5: Adding Subroutines/Functions

This code was a great opportunity to introduce the idea of subroutines and returning values from subroutines (functions) with an Arduino Uno.
This code was a great opportunity to introduce the idea of subroutines and returning values from subroutines (functions) with an Arduino Uno. The last stage of this… http://markandersononline.com/blog/arduino-project-led-skull-5-adding-subroutines/

Fire Breathing Arduino Pumpkin With IR Remote Control

A small change to another fire-breathing Arduino pumpkin replaces a proximity sensor with an small IR remote control.
Fire Breathing Arduino Pumpkin With IR Remote Control from Mark Anderson on Vimeo. A small change to another fire-breathing Arduino pumpkin replaces a proximity sensor with… http://markandersononline.com/blog/fire-breathing-arduino-pumpkin-ir-remote-control/

Arduino Project – LED Skull 4: Add HC-SR04 Ultrasonic Module

The next step in creating a spookier skull was to add an HC-SR04 ultrasonic module that would fire the LEDs based on proximity to a viewer.
The next step in creating a spookier skull was to add an HC-SR04 ultrasonic module that would fire the LEDs based on proximity to a viewer. The existing code works… http://markandersononline.com/blog/arduino-project-led-skull-4-add-hc-sr04-ultrasonic-module/

Arduino Project – LED Skull Eyes 3: Adding a Second Eye

The next step involves adding a second "eye" (LED), independent of the first, to maintain the wink effect.
The next step involves adding a second "eye" (LED), independent of the first, to maintain the wink effect. So far the kids have wired up one LED, and modified a basic… http://markandersononline.com/blog/arduino-project-led-skull-eyes-3-adding-second-eye/

Arduino Project – LED Skull Eyes 2: Wink Effect

More variables and the addition of a "wink" effect to make the LED skull eyes seem more animated.
More variables and the addition of a "wink" effect to make the LED skull eyes seem more animated. As the kids started playing with the brightness and pause values that… http://markandersononline.com/blog/arduino-project-led-skull-eyes-2-wink-effect/

Arduino Project – LED Skull Eyes 1

The first part of this project (adding LED "eyes" to a skull, driven by an Arduino UNO) was about teaching code optimization, abstraction and commenting.
The first part of this project (adding LED "eyes" to a skull, driven by an Arduino UNO) was about teaching code optimization, abstraction and commenting. As a starting… http://markandersononline.com/blog/arduino-project-led-skull-eyes-1/

Arduino IDE "'lt' was not declared in this scope" Error

Be aware of a small encoding issue and the resulting "lt/gt was not declared in this scope" error when pasting into the excellent Arduino IDE for Mac.
Be aware of a small encoding issue and the resulting "lt/gt was not declared in this scope" error when pasting into the excellent Arduino IDE for Mac. I recently… http://markandersononline.com/blog/arduino-ide-lt-was-not-declared-scope-error/