Rob Dobson
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: DrawingManager.cpp
- Revision:
- 5:910909f34907
- Parent:
- 4:b521815f2657
- Child:
- 6:8df79fe1afcd
--- a/DrawingManager.cpp Mon Aug 31 15:21:47 2015 +0000
+++ b/DrawingManager.cpp Tue Sep 01 15:53:52 2015 +0000
@@ -5,6 +5,7 @@
#include "DrawingManager.h"
#include "rtos.h"
+#include "colourconverters.h"
DrawingManager::DrawingManager()
{
@@ -68,6 +69,24 @@
pLedStrip->ShowLeds();
}
+void DrawingManager::DisplayIdle(unsigned int stepCount)
+{
+ // Display a step in an auto sequence
+ if (!pLedStrip)
+ return;
+ if (pLedStrip->IsBusy())
+ return;
+ pLedStrip->Clear();
+ int ledsPerGroup = pLedStrip->GetNumLeds() / 10;
+ for (int i = 0; i < pLedStrip->GetNumLeds(); i += ledsPerGroup)
+ {
+ RgbColor colrVal((stepCount * 7) + (i * 23) % 64, (stepCount * 17) + 77 + (i * 3) % 64, (stepCount * 37) + 117 + (i * 13) % 64);
+ RgbColor colrVal2((stepCount * 17) + (i * 33) % 64, (stepCount * 3) + 13 + (i * 13) % 64, (stepCount * 77) + 11 + (i * 23) % 64);
+ pLedStrip->Fill(i,ledsPerGroup,colrVal.r, colrVal.g, colrVal.b, colrVal2.r, colrVal2.g, colrVal2.b);
+ }
+ pLedStrip->ShowLeds();
+}
+
int DrawingManager::GetIntFromNameValPair(char* buf, char* name, int invalidVal)
{
int val = invalidVal;
@@ -76,3 +95,4 @@
val = atoi(pFnd + strlen(name));
return val;
}
+