[Jon Bennett] sent us this link to his Wifi Robot. After playing with a Linksys ... This thing can be controlled over the internet, or by laptop with a range of about 500 meters.

There’s no interaction with the remote servers when operating the user interface so there is no need for an external Internet connection. The system supports Arduino and ESP controllers.

“Uno R4 WiFi includes an error-catching mechanism that detects run-time crashes and provides detailed explanations and hints about the code line causing the crash,” according to Arduino – Electronics ...