Gpio audio mixer11/27/2022 ![]() Open the terminal window in Raspberry Pi and enter below command: Unzip the downloaded audio files into the folder which we have created on DESKTOP in previous step.Ĥ. Create a new folder on Raspberry Pi desktop screen and name it as “PI SOUND BOARD”.ģ. First of all download the 6 Audio files from the link given below or you can use your audio files, but then you need to change the file names in Code.Ģ. Before explaining any further, complete the steps below.ġ. We can add more buttons and audio files to extend this board to create more beautiful pattern by pressing these buttons. We have used 6 push buttons to play 6 audio files. Here we are Playing Sound using Buttons with Raspberry Pi. All the basic Hardware and Software requirements are previously discussed, you can look it up in the Raspberry Pi Introduction and Raspberry PI LED Blinking for getting started, other than that we need: Here we are using Raspberry Pi 2 Model B with Raspbian Jessie OS. Learn more about GPIO Pins and interfacing button with Raspberry Pi here. We will use resistors to limit the current flow. So we can draw a maximum of 3mA in average from each of these GPIO pins. And the sum of currents from all GPIO cannot exceed 50mA. Each GPIO pin can deliver or draw a maximum of 15mA. We have 26 GPIO pins in Raspberry Pi which can be programmed, out of which some are used to perform some special functions and then we have 17 GPIO remaining. Also check our Raspberry Pi Tutorial Series along with some good IoT Projects. Check the Demo Video at the end of this article. In other words you can press one or multiple buttons at the same time, Raspberry Pi will play one or multiple audio files accordingly at the same time. These audio files can be played one by one or they can all be played together. In simple terms, we are going to connect few buttons to the Raspberry Pi GPIO pins and when these buttons are pressed Raspberry Pi plays audio files stored in its memory. In this session we are going to use Raspberry Pi and the PYGAME functions to make a sound board. ![]()
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