littleBits Sample Rotator

January 23, 2014
Build a sample rotator using Erector set parts and littleBits for your home laboratory. The sample rotator, or media rotator "is a common piece of standard laboratory equipment that is used for continuous mixing of lab samples, for example for slowly reacting or dissolving components." (Source: For a more detailed description of the build, see my Instructable:

How To Make It


Build Circuit: Power + Dimmer + Bargraph + DC MOtor

Related Projects

The bloody pumpkin #hackhalloween

This pumpkin scares during night once you see it with a spooky, chilly sound and lights. How about its look !! 

electric toothbrush

What you need: 1 power, 2 wire extenders, 1 vibration motor, a toothbrush, plastic wrap and tape.First, connect the power to ...

TrickorTreatHouse #HackHalloween

Spooky front door effects to scare your trick-or-treaters out of their pants.  The 3D printed skeleton came from here: h...