I wrote a blog post [1] several months ago on how to use these buttons to call Uber. Happy hacking!<p>[1] <a href="https:&#x2F;&#x2F;medium.com&#x2F;@geoffrey___&#x2F;summon-uber-with-the-new-amazon-dash-button-876b54385dec#.r01e7f9zt" rel="nofollow">https:&#x2F;&#x2F;medium.com&#x2F;@geoffrey___&#x2F;summon-uber-with-the-new-ama...</a>