Arduino connectivity

I hate it how one must spend €1000s in order to pay someone to build a custom built device to test your hypothesis.  Do you know there’s a vibrant opensource community devoted to Arduino hardware (€10-€50) that makes it easy to create your own equipment? Xperiment can easily interface with the Arduino on any device, via USB, bluetooth, wireless, even infrared.

There exist 100s of addon ‘shields’ that slot on-top the Arduino and add functionality without you having to touch a soldering iron (list).  Such functionality includes: adding LCD screens, GPS, joystick, buttons, robotics, MP3 playback, storage, battery pack, pH detection, weather sensing, GSM… .

To add further functionality, you can custom interface with the Arduino.  Want to hack a kitchen scale to know the weight of your stimuli?  Here’s one of our tutorials on how to do this.  But there are literally thousands of projects for you to make use of out there (check out indestructable’s Arduino projects).  Some unusual ones are shown below.



Mechanical Turk integration

Test 100s of participants within minutes from around the world for a fraction of the normal cost. Xperiment has been tried, tested and fully integrated with Mechanical Turk.  Participants are given their unique ‘I have finished the study within a respectable amount of time’ code after completing the study to give to MTurk.

“…Mechanical Turk is a reliable alternative to using college populations to obtain survey data — and may even be a better alternative than traditional Internet surveys. For just pennies, people will complete even lengthy questionnaires in their efforts to help others with their projects and research. While more research needs to be done to confirm these findings, MTurk appears to be a marketplace more psychology researchers should be considering as they prepare their next study.” (,  –  blog article by Grohol 2011).

an Xperiment utility developed to ensure participants complete the study done within Mechanical Turk.


Berinsky, A., Huber, G.A. & Lenz, G.S. (in press). Using Mechanical Turk as a Subject Recruitment Tool for Experimental Research. Political Analysis pdf

Mason, W. & Suri, S. (2012). Conducting behavioural research on Amazon’s Mechanical Turk. Behavior Research Methods, 44, 1-23. pdf