For week 3 there’ve been the following assignments:

• program digital input and output on an Arduino
• Attach a speaker to an output pin and turn it on and off at a set frequency using tone () command
• Connect the Sensors and the Speaker
• Check the sensor input range
• use a servomotor
• Check that the Speaker Works
• Check that the Speaker Works
• Play it Loud
• Use Headphones
• create a musical instrument with 3 forse-sensing resistors
• learn how to control a servomotor’s position from a microcontroller using the value returned from an analog sensor
• Connect an Analog Input Sensor and a Servo
• find out the range of sensor by using analogRead()

A microcontroller makes sound by sending pulses of electrical energy from an output pin through a wire that’s connected to the paper cone of a speaker.