This is a special LED module. When you connect it to ARDUINO, after program, it can emit beautiful green light. Of course, you can also control it using PWM. It will be like fireflies at night. Isn’t it cool? We can also combine it with other sensors to do various interesting interactive experiments.
Note: this module needs to be used together with EASY plug control board. You can also choose other LED to emit different color of light like blue, red, yellow and white.