This is a DIY Arduino kit for electronics enthusiasts and students who want to build their Arduino using discrete components. You will get all the components required to build your own Arduino. It can be programmed with FTDI basic breakout board and works exactly like the real Arduino. It is very popular among students and hobbyists worldwide. Have a look !
It’s a popular clap switch for operating 110V-220V AC lamps. Sold in more than 80 countries, it is still a popular product for electronics hobbyists and students. The kit comes fully assembled. You just need to connect your light to the screw terminal which is connected to a relay. The kit can be operated from a distance of 10 meters. The kit is tested before shipping. Have a look!