Starter Kit - Hourglass (personal mod)

5 mm LED: Red

5 mm LED: Green

Resistor 220 ohm

Resistor 10k ohm

Tilt Switch, SPST

Arduino Uno Rev3

Arduino IDE

<p >This project may be thought as a Pommodoro-technique variant of the project n. 8 of the starter kit. Both the circuit and the code are quite straightforward, and since I am still experimenting with the basics I wanted to propose a slightly more challenging variant of the original project.</p><p >The LEDs require a 220 Ohm resistor, while the tilt sensor is going in series with a 10k Ohm in order to force the current towards the 8th pin.</p><figure><img src=https://projects.arduinocontent.cc/bfdf4987-e66a-4813-ae3b-e109730dc077.png /><figcaption>Design realized on Tinkercad</figcaption></figure><p >This has a similar result to the original starter project, with the difference that this is going to count both minutes and seconds (ten by ten). The end of the 5 minutes is going to be signaled by a Christmas-light kind of  LED choreography, which is going to end triggering the tilt sensor and start from the beginning (for the purpose of making a video that would last less than 5 minutes I made the code wait 100x less)</p><div class="se-component se-video-container __se__float-none" contenteditable="false" style="width: 100%;"><figure style="width: 100%; height: 56.25%; padding-bottom: 56.25%; margin: 0px;"><iframe frameborder="0" allowfullscreen="" src="https://www.youtube.com/embed/dUTxZdzroL8" data-proportion="true" data-percentage="100%,56.25%" data-size="100%,56.25%" data-align="none" style="width: 100%; height: 100%;" data-index="0" data-file-size="0" data-origin="100%,56.25%"></iframe></figure></div><p ></p><p ></p>

Arduino Hourglass

TinkerCAD scheme

Starter Kit - Hourglass (personal mod)

Mod of the Starter Kit project n. 8 5 minutes counter with different lights for seconds and minutes