Learning about Arduino Microcontrollers
Made by: Zoey
Learning about resistors and potentiometers
Resistor Measurement Videos
Potentiometers
Learn how the breadboard and switch works
breadboard
each row is concatenated, Which means that A to E in the first line are all connected together and so on.
There are two lines next to it, one red and one blue. The red one is connected positive, the blue one is connected negative.
photo from https://www.digikey.tw/zh/maker/projects/learn-to-breadboard/43bde9f32dad493182278f0441466a6e
switch
two LEDs alternating according to a switch(resistor: 470)
Learning about audio oscillator and amplifier
Oscillator with Potentiometers
If the potentiometer resistance is getting smaller the capacitors charge faster so the oscillator frequency will be faster because more current flows. The opposite of if the potentiometer resistance is getting bigger, The representative said that the charging speed of the capacitor is relatively slow, so then the oscillator frequency will be slower.
Oscillator with Speaker, Potentiometers and Switch