This is about using those inexpensive Amazon Dash Buttons (.com / .de) not for ordering stuff, but for useful purposes within the “Internet of Things” (IoT) scope. … Admittedly, this has been done before – but I believe that my DHCP-based approach to hijack the Dash Button is more elegant. – Watch out – heavy techno-babble ahead!
(… Sorry, keine deutschsprachige Fassung … Sorry, no German language version …)