======Learning about Arduino Microcontrollers====== Made by: [[zoey-lin|Zoey]] =====Learning about resistors and potentiometers===== {{ :zoey-measuring_resistors_and_potentiometers_making_diagrams.svg |}} ====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.** {{:zoey-breadboard.jpg?400|}} photo from [[https://www.digikey.tw/zh/maker/projects/learn-to-breadboard/43bde9f32dad493182278f0441466a6e]] ====switch==== **The yellow box means, The electricity will go through** {{:zoey-how_the_switch_works.svg?400|}} ====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==== ====Oscillator with Speaker, Potentiometers and Switch Illustration ==== {{:zoey-building_an_audio_oscillator_and_amplifier.png?600|}} =====Arduino Circuits===== {{:zoey-test_arduino.jpg?400|}}