The Internet of Things is a very broad field, but it certainly has a great future. This future is limited in principle by one's own imagination but currently many users are not encouraged to create smart projects for other reasons, even though you can always make something that grabs the attention of many like this smart trash can.
The mechanism is not very difficult and possibly does not require much imagination, but until now there was nothing like it and the few gadgets that tried to fulfill the same function were either very expensive or had proprietary hardware. But this smart trash can works with Hardware Libre.
While this trash can works with hardware libre, the positive thing about this project is not this but the price-quality ratio of the device. So we can open the garbage can by putting our hand close to the lid and all for less than 7 euros. Of course, depending on whether we buy the garbage can or use an old garbage can.
With this project you can get a smart trash can for little money
On the one hand you will need an Arduino Nano board, a plate that will cost approximately 2 dollars; a motion sensor that it will cost us a dollar or less and a servo motor which will cost approximately 4 euros. We download the project code and insert it into the Arduino Nano board, then we connect the sensor that we have placed on the lid of the garbage can to the Arduino board and also the servo motor at the back so that it opens the lid when we get closer. We will also need a power supply, something that we can replace with a power cable with its corresponding adapter.
In any case, those who want to create this smart trash can can create one by following this guide that has been published on Instructables. The process is simple, although it is true that component prices may vary significantly, although it is a useful project Do not you think?