bobbycar/controller_teensy/include/led.h

43 lines
1.3 KiB
C

#ifndef _LED_H_
#define _LED_H_
#include <Adafruit_NeoPixel.h>
#define LED_PIN 3
#define LED_COUNT 16
// NeoPixel brightness, 0 (min) to 255 (max)
#define BRIGHTNESS 50 // Set BRIGHTNESS to about 1/5 (max = 255)
// Declare our NeoPixel strip object:
Adafruit_NeoPixel strip(LED_COUNT, LED_PIN, NEO_GRBW + NEO_KHZ800);
unsigned long last_ledupdate=0;
#define LEDUPDATEINTERVAL 100
void init_led() {
strip.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
strip.show(); // Turn OFF all pixels ASAP
strip.setBrightness(BRIGHTNESS);
}
void led_update(unsigned long loopmillis) {
if (loopmillis>last_ledupdate+LEDUPDATEINTERVAL) {
last_ledupdate=loopmillis;
uint32_t color=strip.Color(0, 0, 0, 255);
uint32_t colorOff=strip.Color(30, 0, 0, 0);
uint8_t position=(loopmillis/100)%strip.numPixels();
for(int i=0; i<strip.numPixels(); i++) { // For each pixel in strip...
if (i==position) {
strip.setPixelColor(i, color); // Set pixel's color (in RAM)
}else{
strip.setPixelColor(i, colorOff); // Set pixel's color (in RAM)
}
}
strip.show(); // Update strip to match
}
}
#endif