1) Switch on the power supply, the digital tube will display number 1. Press key 1, MCU executes the function of “the next one"; Press key 2, it executes the function of “the previous one". The procedure interior has three vested songs, and key 1 and key 2 can realize the switchover of the three songs.
2) Press the key 4, execute the function of “playing the current song"; press key3, execute function of “pausing/continuing to play".
3) Press the key 5, execute the function of “relaying all the songs"
4) Before broadcasting the songs, the digital tube will display the serial number of the current song.
2.1 x Digital Tube
4.1 x four terminal switch
6.30 x jumper wire
7.1 x +5V power supply
code for reference:
Step 1: Schematic Diagram
Step 2: Connect the ICStation Mega2560 to the Breadboard.
From the ICStation Mega2560 development board, plug +5V power line and GND into the bread board, the red wire is used as power line and black one as GND.
Step 3: Connect the digital tube to the breadboard.
Step 4: Connect the switch to the bread board.
Step 5: Connect the loudspeaker to the ICStation Mega2560
Step 6: Experimental phenomenon
First switch on the power supply, the digital tube will display number 1; Press the key 1, the number will plus one by itself; Press key 2, the number will minus one by itself. When the number is bigger than 3, it will return to 1, then execute the switchover of the three songs. Press the key 4, the loudspeaker will broadcast the song that the number the digital tube displays corresponds. If you press the key 3 when the song is put on, then the song will be stoped. And press the key 3 again, the song will be continued. After the power supply is switched on, press the key 5 directly, it will replay the three songs.