Who likes a weak WiFi signal? We can extend or improve our WiFi signal in the office or at home using specific products, but these need to be placed in precise points for optimal performance. You can use the device shown in this article to measure the strength of your WiFi signal at various points and thus identify weak areas.
We will use a Wemos D1 Mini with its OLED display which, despite being only 0.66 inches, has as main advantage the very simple wiring unlike other displays (which can still be used).