Hello, I'm a beginner in using an Arduino. I recently completed a college project in which I made a scrolling LED matrix display.
The original plan was to use an Arduino Nano, a generic MAX7219 8x32 matrix module and the libraries MD_Max72XX and MD_Parola. However, no matter what was tried in changing header files to rewriting parts of the code this wasn't to be. Eventually, I made a successful board using the example code found in the LEDMatrixDriver.hpp library.
Now my project is complete I would like to refine my project to include a HC-05 Bluetooth receiver, to wow some friends and make the text on the board easier to change. My main question was really, is this possible using theLEDMatrixDriver.hpp?
Now my project is complete I would like to refine my project to include a HC-05 Bluetooth receiver, to wow some friends and make the text on the board easier to change.
My main question was really, is this possible using theLEDMatrixDriver.hpp?
How do you currently change the text on the board? I see a library example "Marquee Text. ino". It looks like a character string is passed to a display function.
If you can write code to change the text with input from the Serial Monitor you should be able to use Bluetooth.
I would study Robin2's excellent tutorial on Serial communication with the Arduino. Serial Input Basics - updated - Introductory Tutorials - Arduino Forum
Pay particular attion to Example 3 - Receive with start- and end-markers. I recommend it as the model for what you will do.
You will need a phone app to send the text to the Bluetooth module, but I would think that any standard Bluetooth terminal app would get you started.