A programmer's video shows how he hacked these Amazon Dash buttons to control the temperature in his car. Michael Donnelly/YouTube video screenshot
"I picked up some of those $5 Dash buttons. Then I decided I'd rather have them do something other than buy baby food," Donnelly wrote in the video's description.
The programmer explains in the video how he reprogrammed the buttons to send code to his car and control the air conditioner. One push of the button causes the Tesla's temperature read-out to come up, while a second push sets the air conditioner to his preferred driving temperature.
The buttons also honk the Tesla's horn and turn on a light in Donnelly's house.
