Free Elektor Article: A 3-Dollar Tiny Wi-Fi Switch That Works

Free Elektor Article: A 3-Dollar Tiny Wi-Fi Switch That Works

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Out of curiosity I ordered a tiny ESP8266 relay switch board from aliexpress.com, for next to nothing. Blissfully unaware, then, of the struggle ahead to make the thing work as advertised. I survived and conquered — here’s the story. By Somnath Bera @ elektormagazine.com

The little gizmo pictured in Figure 1 was stated by the vendor(s) to contain an inbuilt switching program, so all I had to do is “use some Android phone to control it”. Sadly, despite several attempts using various Chinese and English-language Android apps, nothing ever happened! Sure, the device gets connected with the Wi-Fi of my PC or laptop as a server and it also allocates the dynamic IP address — but nothing happens after that. No server page etc. opens anywhere! Utterly frustrated, one day I decided to develop and install my own program into its dumb head!

Free Elektor Article: A 3-Dollar Tiny Wi-Fi Switch That Works – [Link]

Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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