NodeMCU wireless home security system
This project is an incredibly low cost Arduino home security system with ESP8266 wireless stations, infrared presence sensors and RFID identification system.
More …Build your own Harry Potter's Remembrall
One of most useless magic gadgets in Harry Potter saga. To be more precise Harry Potter never had a Remembrall, but his friend Neville Longbottom received that magic item from his grandmother.
Recently I’ve found an online project explaining how to build a Remembrall by yourself, exploiting a small Calliope device. But the description of the project was not complete, and the circuit appeared to not work similarly to the true Remembrall magic artifact.
Then I decided to build one by myself, but changing the main platform. I investigated for the first time the ATtiny85 microcontroller, and I found it perfect for the purpose of present project.
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