![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
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/
Idler.cpp
- Committer:
- Bobty
- Date:
- 2015-09-01
- Revision:
- 5:910909f34907
- Child:
- 6:8df79fe1afcd
File content as of revision 5:910909f34907:
#include "Idler.h" DigitalOut* Idler::_pStatusLed = NULL; bool Idler::_isIdle = true; unsigned int Idler::_stepCount = 0; DrawingManager* Idler::_pDrawingManager = NULL; Ticker Idler::_idleTicker; Timer Idler::_idleTimer; const int IDLE_TIMEOUT = 10; // N seconds of no REST commands -> idle Idler::Idler(DigitalOut* pStatusLed, DrawingManager* pDrawingManager) { _pStatusLed = pStatusLed; _pDrawingManager = pDrawingManager; _idleTicker.attach(&tick, 0.1); } void Idler::tick() { // Check if idle if (!_isIdle) { // Check time since last notIdle if (_idleTimer.read() < IDLE_TIMEOUT) return; // Now idle again _idleTimer.stop(); _isIdle = true; } // Blink LED *_pStatusLed = !(*_pStatusLed); // Step through display _pDrawingManager->DisplayIdle(_stepCount); _stepCount++; } void Idler::notIdle() { _isIdle = false; *_pStatusLed = false; _idleTimer.reset(); _idleTimer.start(); _stepCount = 0; }