Using IO12 on ESP-12e for ws2811 LED Question
Posted: Sat Jun 08, 2019 4:18 pmHi,
I have a simple sketch that I am trying to get working that includes a ws2812b LED strip on the RX pin and a single ws2811 LED on pin 12 of a raw ESP-12e. I will be using almost all of the other pins for a variety of things and I am stuck with pin 12 for the single LED. For some reason I can not get the LED on pin 12 to light up. The LED strip is working fine.
Is it possible that the neopixels library doesn't work with pin 12?
I am confident in the wiring of the single LED because it worked on another pin.
Thanks for any advice!
Jeremy
I have a simple sketch that I am trying to get working that includes a ws2812b LED strip on the RX pin and a single ws2811 LED on pin 12 of a raw ESP-12e. I will be using almost all of the other pins for a variety of things and I am stuck with pin 12 for the single LED. For some reason I can not get the LED on pin 12 to light up. The LED strip is working fine.
Is it possible that the neopixels library doesn't work with pin 12?
I am confident in the wiring of the single LED because it worked on another pin.
Thanks for any advice!
Jeremy
Code: Select all
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
// Which pin on the Arduino is connected to the NeoPixels?
#define PIN 3
#define STATUS 12
#define NUMPIXELS 20 // Popular NeoPixel ring size
Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_BRG + NEO_KHZ800);
Adafruit_NeoPixel statusLED(1, STATUS, NEO_BGR + NEO_KHZ800);
#define DELAYVAL 100 // Time (in milliseconds) to pause between pixels
void setup() {
pixels.begin(); // INITIALIZE NeoPixel strip object (REQUIRED)
statusLED.begin();
}
void loop() {
pixels.clear(); // Set all pixel colors to 'off'
statusLED.setPixelColor(0, statusLED.Color(255, 0, 0));
statusLED.show(); // Send the updated pixel colors to the hardware.
for (int i = 0; i < NUMPIXELS; i++) { // For each pixel...
// pixels.Color() takes RGB values, from 0,0,0 up to 255,255,255
// Here we're using a moderately bright green color:
pixels.setPixelColor(i, pixels.Color(25, 0, 0));
pixels.show(); // Send the updated pixel colors to the hardware.
delay(DELAYVAL); // Pause before next pass through loop
}
}