Spidey Wall is the name for a physical wall lit up by multiple addressable LED strips. This program is an LPC1768 web server to control the wall from a browser.
Dependencies: EthernetInterfacePlusHostname RdWebServer mbed-rtos mbed
This project is part of a Light-Wall using addressable LED strips (WS2801). I have published a few posts on my blog about the construction of the wall and building a game to play on it (PacMan). I have also had a guest post from a friend who has set his children the task of producing some interesting animations. The original post is http://robdobson.com/2015/07/spidey-wall/
So far, however, I hadn't fully connected the physical (and electronic) wall with the web-browser creations to drive it. This project is hopefully the final link. A fast and reliable web server using REST commands to drive the 1686 LEDs in the Spidey Wall from code running in a browser (say on an iPad while you are playing a game).
The approach taken here results in the ability to control the RGB values of all 1686 LEDs at a rate of 20 frames per second.
A blog post describing the whole thing is here:
http://robdobson.com/2015/08/a-reliable-mbed-webserver/
Diff: ledstrip.h
- Revision:
- 0:887096209439
- Child:
- 1:362331cec9b7
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ledstrip.h Tue Aug 18 16:03:29 2015 +0000 @@ -0,0 +1,42 @@ +#ifndef LEDSTRIP__H +#define LEDSTRIP__H + +#include "mbed.h" + +class ledstrip +{ + private: + unsigned char* mpLedValuesA; + unsigned char* mpLedValuesB; + unsigned char* mpCurLedValues; + int mLedsInStrip; + int mSplitPoint; + int mLedsBufSize; + SPI* mpSPI0; + SPI* mpSPI1; + + public: + static const int mColoursPerLed = 3; + + public: + ledstrip(int length, int splitPoint); + ~ledstrip(); + unsigned char* GetBuffer(); + int GetBufferSizeinBytes(); + bool Resize(int length, int splitPoint); + bool IsBusy(); + int GetNumLeds() + { + return mLedsInStrip; + } + void Clear(); + void Fill(int startLed, int numLeds, + int r1, int g1, int b1, + int r2, int g2, int b2); + void Fill(int startLed, int numLeds, + int r1, int g1, int b1); + void ShowLeds(); + +}; + +#endif