Simple 8x8 LED Matrix controller which interfaces with a Processing GUI over serial to display sketches
Dependencies: Multi_WS2811 mbed
Fork of Multi_WS2811_test by
Revision 24:feb1dae0403a, committed 2014-01-02
- Comitter:
- bikeNomad
- Date:
- Thu Jan 02 11:26:44 2014 +0000
- Parent:
- 23:33df42ff2541
- Child:
- 25:751c89f7e654
- Commit message:
- added R/G/B test at start; 50usec guardtime doesn't work for some reason.
Changed in this revision
| TSI.lib | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TSI.lib Thu Jan 02 11:26:44 2014 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/mbed_official/code/TSI/#1a60ef257879
--- a/main.cpp Thu Jan 02 10:30:25 2014 +0000
+++ b/main.cpp Thu Jan 02 11:26:44 2014 +0000
@@ -1,6 +1,7 @@
#include "mbed.h"
#include "WS2811.h"
#include "Colors.h"
+#include "TSISensor.h"
// per LED: 3 * 20 mA = 60mA max
// 60 LEDs: 60 * 60mA = 3600 mA max
@@ -16,6 +17,22 @@
Serial pc(USBTX, USBRX);
+TSISensor touchSensor;
+Ticker touchTicker;
+float touchPercentage;
+float const minBrite = 0.1;
+float const maxBrite = 0.7;
+float brite;
+
+void readTouchSensor()
+{
+ touchPercentage *= 0.9;
+ touchPercentage += touchSensor.readPercentage() * 0.1;
+ brite = maxBrite * touchPercentage;
+ if (brite < minBrite)
+ brite = minBrite;
+}
+
// @brief sets different colors in each of the LEDs of a strip
// @param strip the light strip
// @param sat saturation, 0.0 - 1.0
@@ -33,14 +50,23 @@
strip.show();
}
+static void showSolidColor(WS2811 &strip, uint8_t r, uint8_t g, uint8_t b)
+{
+ unsigned nLEDs = strip.numPixels();
+ for (unsigned i = 0; i < nLEDs; i++) {
+ strip.setPixelColor(i, LedStrip::Color(r, g, b));
+ }
+ strip.show();
+}
+
int main(void)
{
pc.baud(115200);
WS2811 lightStrip(nLEDs, DATA_OUT_PIN);
+ touchTicker.attach(&readTouchSensor, 0.1);
lightStrip.begin();
- float brite = 0.2; // 1.0 is full brightness, which is VERY bright!
float rainbowPeriod = 1 * 1.0e6; // usec
float sat = 1.0;
@@ -49,6 +75,30 @@
bool printed = false;
unsigned frames = 0;
+ uint8_t r =0;
+ uint8_t g =0;
+ uint8_t b =0;
+ for (;;) {
+ if (r < 255)
+ r++;
+ else if (g < 255)
+ g++;
+ else if (b < 255)
+ b++;
+ else {
+ unsigned running = timeRunning.read_us();
+ pc.printf("%u frames in %u usec = %u frames / sec\r\n", frames, running, frames * 1000000 / running);
+ break;
+ }
+
+ wait(0.1);
+ showSolidColor(lightStrip, r, g, b);
+ frames++;
+ }
+
+ timeRunning.reset();
+ frames = 0;
+
for (;;) {
unsigned running = timeRunning.read_us();
float hueShift = running / rainbowPeriod;
