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--- zoey-lin-arduino [2023/01/20 06:00] – zoey.lin
+++ zoey-lin-arduino [2023/01/23 07:15] (current) – zoey.lin
@@ Line 2: / Line 2: @@
 Made by: [[zoey-lin|Zoey]]
-====making a circuit with an LED====
+=====Learning about resistors and potentiometers=====
-===Resistor 1 - Red,Black,Red,Gold===
-Resistor Value: 2000 Ω(ohms)
-If you see Resistor 1's LED you may think this one is brighter than Resistor 3, but that is wrong because it has the most resistance, So the current that passes through should be the smallest.
+{{ :zoey-measuring_resistors_and_potentiometers_making_diagrams.svg |}}
-{{:students:zoey-resistors_1.jpg?400|}}
+====Resistor Measurement Videos====
-===Resistor 2 - Brown,Black,Red,Gold===
+<html>
-Resistor Value: 1000 Ω(ohms)
+<iframe width="560" height="315" src="https://www.youtube.com/embed/AWzdkKd3hxM" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
-This LED for Resistor 2 looks brighter than Resistor 1, There are changes, but not much, so if you do not see it carefully you may think this two are the same. It should not work like this Because the resistance values of resistor 1 and resistor 2 differ by 1000 ohms.
+====Potentiometers====
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/nSKLxB8Dm4g" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+</html>
-{{:students:zoey-resistors_2.jpg?400|}}
+=====Learn how the breadboard and switch works=====
-===Resistor 3 - Yellow, Violet,Brown, Gold===
-Resistor Value: 470 Ω(ohms)
-In this picture, you can see that the Resistor 3's LED is the least bright, But it shouldn't be like this because Resistor 3 has less resistance than the other two.
+====breadboard====
-So I think I do not take the picture correctly, The Resistor 1 and 2 is a different angle from Resistor 3. I may redo the experiment again.
+**each row is concatenated, Which means that A to E in the first line are all connected together and so on.**
-{{:students:zoey-resistors_3.jpg?400|}}
+**There are two lines next to it, one red and one blue. The red one is connected positive, the blue one is connected negative.**
-===Experimental video===
+{{: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)====
 <html>
-<iframe width="560" height="315" src="https://www.youtube.com/embed/GoiPrXlCRoI?start=4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/ViLEBPt2VVQ?start=4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
+=====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.
+<html>
+<iframe width="560" height="315" src="https://www.youtube.com/embed/KZe8h4jgnTo?start=6" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 </html>
-====Arduino Circuits====
+====Oscillator with Speaker, Potentiometers and Switch====
+<html><iframe width="560" height="315" src="https://www.youtube.com/embed/1RjBA_ZsNY0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
+====Oscillator with Speaker, Potentiometers and Switch Illustration ====
+{{:zoey-building_an_audio_oscillator_and_amplifier.png?600|}}
+=====Arduino Circuits=====
 {{:zoey-test_arduino.jpg?400|}}
 <HTML><iframe width="560" height="315" src="https://www.youtube.com/embed/DTBFIZS_JsU?start=5" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></HTML>