Formatting Audio Files for WAV Players
Formatting audio to be compatible with your Propeller C or Spin projects is simple with Audacity; just follow this guide for step-by-step instructions.
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Creating Audio Files for WAV Players
Make some noise with this helpful guide on creating audio with Audacity that you can use with your Propeller C or Spin projects.
Sound Library
Want to make some noise with your Propeller C or Spin project? Visit our sound library for helpful resources like step-by-step audio recording and formatting instructions, ready-to-use WAV downloads, and a list of external free audio websites.
How Does it All Work Together?
Dig Inside the Code
The AB-IR-Remote-WAV application uses the simpletools and abdrive (or abdrive360) libraries, which may be familiar to you already. It also uses the wavplayer library to play the audio files, and sirc to decode the infrared signals received from the remote controller.
Comments Count!
A detailed comment block (all the lines between /* and */) helps other people know what is needed to use the application code, and what to expect from it in action.
Audio
BlocklyProp reference for AUDIO blocks
BlocklyProp blocks for generating audio. See each block for board type compatibility.
frequency out
How KittyBot Works
Let's take a look at the code. You can adapt KittyBot to work with different sensors, and use your own WAV files to make different noises.
The KittyBot project includes the following 4 libraries (see below code).
If you're using the KittyBot program for the ActivityBot 360° Robot, its fourth library #include shown below will be abdrive360 not abdrive. Every other part of this program should look the same regardless of which ActivityBot you use.
Polite ActivityBot Variation
Don't like cats? Or perhaps you just want to try out some different sounds?
The Polite ActivityBot is a variation of the same code base, with different WAV files for the three behaviors. Instead of meowing, purring, and hissing, Polite ActivityBot uses its words to nicely request that you move out of its way.
Download the Polite ActivityBot code
Bitmap ePaper Image from SD Card
The ePaper module is able to display bitmap images as well as text that’s formatted to a .bmp file. The first thing you want to have is a BMP file ready to load onto a micro SD card.
If you don’t have one you can convert a file to BMP format using MSPaint, or any online file converter (such as this one). Be sure to select the monochrome setting within the file converter and size your bitmap image dimensions a bit smaller than the display dimensions in units of pixels.
Programming the KittyBot
The Project archive includes updated libraries: wavplayer 0.9 and abdrive 0.5.5. If you run the project from its un-zipped archive using SimpleIDE 0-9-43 or later, it will use these libraries. Get the latest SimpleIDE software, the latest Learn folder & Simple Libraries, and ActivityBot Libraries.