Hello all. I’ve been enjoying Stefan Petrick’s self modifying code and greatly desire to insert a 10k ohm pot to control overall brightness levels. I’m having great difficulty as the micro is a Teensy 3.5, not an Arduino. I can’t figure out how to read an analog pot (10k) and write to Pin 11 (DATA) on the Teensy. I just cant find any examples. Can anyone point me in a direction towards a solution?
void setup() {
Any help would be greatly appreciated.
marmil
July 24, 2017, 2:47am
2
Here’s an example that used two potentiometers, one for hue and one for brightness.
//===============================================================
// hue_and_brightness_example.ino
//
// Example setup for using two potentiometers to control hue and
// brightness with FastLED.
//
// Every time the function checkKnobs() is called it will read
// the current value of both potentiometers and map those values
// to a hue and master brightness for FastLED.
//
// Marc Miller, 2015
//===============================================================
#include "FastLED.h"
#define LED_TYPE NEOPIXEL
#define DATA_PIN 6
#define NUM_LEDS 12
#define MASTER_BRIGHTNESS 255 // Set the master brigtness value [should be greater then min_brightness value].
uint8_t min_brightness = 30; // Set a minimum brightness level.
uint8_t brightness; // Mapped master brightness based on potentiometer reading.
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The potentiometer has pos and neg wired to the outer connections, and the analog pin wired to the middle connection, as seen here:https://www.arduino.cc/en/tutorial/potentiometer