Surfing the internet many interesting things come up such as the Top 10 video games of the year or cute and funny cat videos. However that not what has caught my attention this past week. Funnily enough it has been the topic of audio electronics. Audio circuits to be more precise. I browsed the internet on audio circuits and I came across a few interesting websites that detailed a lot about how to build simple circuits with Arduino. In the following blog post I will detail some simple Arduino board circuits to help me understand audio electronics much better and hey!, if you find anything interesting feel free to try them yourself.
RGB LED
RGB has been getting ever so popular with gaming products on the rise in terms of sales and production. I’ve always wondered how they work and I finally found the circuit that showed just that.
To begin the parts needed are:
- (1) Arduino Uno
- (1) USB A-to-B cable
- (1) Breadboard
- (1)RGB LED
- (3 )300 ohm Resistor
- (5) jumper wires
Steps:
Connect the Arduino board to a computer using a USB cable. Download the file Circuit_09_RGBLED and open the project code in Arduino.
Select the board and serial port so that the code is able to run through the board. Ensure everything is running and once that is done, click the upload button to send the sketch to Arduino.
What should follow is that the LED will turn on and change different colours.
Push Button
Learning how to create a circuit with a push button is important if you want to learn to create anything as a majority of products have buttons with functions on it. This specific circuit that I am going to show has an LED light switch on after a press of a button. For me, learning how this circuit works is beneficial as it opens up the idea of adding buttons to my. project. These are the parts you are going to need:
- Arduino uno
- USB A to B cable
- Breadboard – half size
- 1 LED 5mm
- 220 Ohm resistor
- 10k ohm resistor
- push button switch
- 6 jumper wires
Connect the Arduino board to a computer using a USB cable. Download the file and code related to this project on Arduino.com and open the project code in Arduino.
Select the board and serial port so that the code is able to run through the board. Ensure everything is running and once that is done, click the upload button to send the sketch to Arduino.
What should follow is that the LED will turn on after a press of a button.
Much More
I could spend more time detailing more circuits on how to make them however I’ll just leave it at these 2. When you learn 1 circuit it is possible to combine these circuits to complete ‘harder’ functions. For example a circuit with a button should look similar regardless if the function is to turn on a button that makes a noise or emits a light. Overall the world of electronics is daunting at first however if you take it step by step and circuit by circuit it all comes together.