This guide is assuming that you have already read the Getting Started for Maker UNO and installed the Arduino IDE. If not, you can refer it here.
1. Open the Arduino IDE and paste the following code into the sketch
2. Plug in the Maker UNO and upload the code.
3. Refer to this post to setup the serial monitor.
4. Test yourself by creating a new code with three option, option ‘1’ to turn on LED, option ‘2’ to turn on song and option ‘3’ to turn off song and LED.