The idea is simple, but the development not so much hehe. By a button on a board connected to Internet, activates the sound of a melody (whose mp3 file you have selected) in another board connected to Internet too (the Doorbell).STEP 1: Create Widget for Generic Sensor on Particle Photon Dashboard
STEP 2: Flash the code on Cloud Editor
STEP 3: Create Widget for Generic Actuator on LinkIt ONE Dashboard
STEP 4: Select your prefered song (mp3) and save on a root of a micro SD Card
After, put the microSD in LinkIt ONE Slot, and toggle mode to SD (SD/SPI).STEP 5: Upload sketch for LinkIt ONE
STEP 6: Create trigger for both boards
STEP 7: Test and Fun!
thx for read, and don't forget respect this ;)