In this guide you will learn how to create a water activated relay. This is an example of turning the physical world into the digital world.
Makey Makey Kit, Thin Nail, Copper Wire, 8oz Plastic Cup, Tape, Water, (optional) LED's
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Step 1: Cup Setup
- Start by using a sharp pointed finish nail to poke holes through the top of your plastic cup. You will need 4 holes. Look at the image below for the location of the holes needed.The holes should be no more than a 1/8 inch apart.
- Insert coper wire
Step 2: Connect Your Makey Makey
- MS ↑
(See image below)
- MS OUT
(see image below)
Add a group of led's behind the cup to indicate when the water hits the wire.
Note: You can find LED's in flashlights at a dollar store.
Step 3: Scratch
Click on the link below to start the water glass
Note: Adjust the speed on the mouse pointer to slow or speed up the water flow for your project.