Merge pull request #970 from steveway/patch-1
v2 based usermod which allows changing color and brightness
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usermods/rotary_encoder_change_brightness/usermode_rotary_set.h
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211
usermods/rotary_encoder_change_brightness/usermode_rotary_set.h
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#pragma once
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#include "wled.h"
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//v2 usermod that allows to change brightness and color using a rotary encoder,
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//change between modes by pressing a button (many encoder have one included)
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class RotaryEncoderSet : public Usermod
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{
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private:
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//Private class members. You can declare variables and functions only accessible to your usermod here
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unsigned long lastTime = 0;
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/*
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** Rotary Encoder Example
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** Use the Sparkfun Rotary Encoder to vary brightness of LED
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**
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** Sample the encoder at 500Hz using the millis() function
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*/
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int fadeAmount = 5; // how many points to fade the Neopixel with each step
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unsigned long currentTime;
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unsigned long loopTime;
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const int pinA = 5; // DT from encoder
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const int pinB = 18; // CLK from encoder
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const int pinC = 23; // SW from encoder
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unsigned char select_state = 0; // 0 = brightness 1 = color
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unsigned char button_state = HIGH;
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unsigned char prev_button_state = HIGH;
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CRGB fastled_col;
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CHSV prim_hsv;
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int16_t new_val;
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unsigned char Enc_A;
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unsigned char Enc_B;
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unsigned char Enc_A_prev = 0;
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public:
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//Functions called by WLED
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/*
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* setup() is called once at boot. WiFi is not yet connected at this point.
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* You can use it to initialize variables, sensors or similar.
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*/
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void setup()
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{
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//Serial.println("Hello from my usermod!");
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pinMode(pinA, INPUT_PULLUP);
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pinMode(pinB, INPUT_PULLUP);
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pinMode(pinC, INPUT_PULLUP);
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currentTime = millis();
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loopTime = currentTime;
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}
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/*
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* connected() is called every time the WiFi is (re)connected
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* Use it to initialize network interfaces
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*/
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void connected()
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{
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//Serial.println("Connected to WiFi!");
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}
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/*
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* loop() is called continuously. Here you can check for events, read sensors, etc.
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*
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* Tips:
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* 1. You can use "if (WLED_CONNECTED)" to check for a successful network connection.
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* Additionally, "if (WLED_MQTT_CONNECTED)" is available to check for a connection to an MQTT broker.
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*
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* 2. Try to avoid using the delay() function. NEVER use delays longer than 10 milliseconds.
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* Instead, use a timer check as shown here.
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*/
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void loop()
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{
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currentTime = millis(); // get the current elapsed time
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if (currentTime >= (loopTime + 2)) // 2ms since last check of encoder = 500Hz
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{
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button_state = digitalRead(pinC);
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if (prev_button_state != button_state)
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{
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if (button_state == LOW)
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{
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if (select_state == 1)
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{
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select_state = 0;
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}
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else
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{
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select_state = 1;
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}
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prev_button_state = button_state;
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}
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else
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{
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prev_button_state = button_state;
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}
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}
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int Enc_A = digitalRead(pinA); // Read encoder pins
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int Enc_B = digitalRead(pinB);
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if ((!Enc_A) && (Enc_A_prev))
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{ // A has gone from high to low
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if (Enc_B == HIGH)
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{ // B is high so clockwise
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if (select_state == 0)
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{
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if (bri + fadeAmount <= 255)
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bri += fadeAmount; // increase the brightness, dont go over 255
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}
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else
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{
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fastled_col.red = col[0];
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fastled_col.green = col[1];
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fastled_col.blue = col[2];
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prim_hsv = rgb2hsv_approximate(fastled_col);
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new_val = (int16_t)prim_hsv.h + fadeAmount;
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if (new_val > 255)
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new_val -= 255; // roll-over if bigger than 255
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if (new_val < 0)
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new_val += 255; // roll-over if smaller than 0
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prim_hsv.h = (byte)new_val;
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hsv2rgb_rainbow(prim_hsv, fastled_col);
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col[0] = fastled_col.red;
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col[1] = fastled_col.green;
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col[2] = fastled_col.blue;
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}
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}
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else if (Enc_B == LOW)
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{ // B is low so counter-clockwise
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if (select_state == 0)
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{
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if (bri - fadeAmount >= 0)
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bri -= fadeAmount; // decrease the brightness, dont go below 0
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}
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else
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{
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fastled_col.red = col[0];
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fastled_col.green = col[1];
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fastled_col.blue = col[2];
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prim_hsv = rgb2hsv_approximate(fastled_col);
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new_val = (int16_t)prim_hsv.h - fadeAmount;
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if (new_val > 255)
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new_val -= 255; // roll-over if bigger than 255
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if (new_val < 0)
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new_val += 255; // roll-over if smaller than 0
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prim_hsv.h = (byte)new_val;
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hsv2rgb_rainbow(prim_hsv, fastled_col);
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col[0] = fastled_col.red;
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col[1] = fastled_col.green;
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col[2] = fastled_col.blue;
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}
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}
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//call for notifier -> 0: init 1: direct change 2: button 3: notification 4: nightlight 5: other (No notification)
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// 6: fx changed 7: hue 8: preset cycle 9: blynk 10: alexa
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colorUpdated(NOTIFIER_CALL_MODE_BUTTON);
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updateInterfaces()
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}
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Enc_A_prev = Enc_A; // Store value of A for next time
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loopTime = currentTime; // Updates loopTime
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}
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}
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/*
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* addToJsonInfo() can be used to add custom entries to the /json/info part of the JSON API.
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* Creating an "u" object allows you to add custom key/value pairs to the Info section of the WLED web UI.
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* Below it is shown how this could be used for e.g. a light sensor
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*/
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/*
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void addToJsonInfo(JsonObject& root)
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{
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int reading = 20;
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//this code adds "u":{"Light":[20," lux"]} to the info object
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JsonObject user = root["u"];
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if (user.isNull()) user = root.createNestedObject("u");
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JsonArray lightArr = user.createNestedArray("Light"); //name
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lightArr.add(reading); //value
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lightArr.add(" lux"); //unit
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}
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*/
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/*
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* addToJsonState() can be used to add custom entries to the /json/state part of the JSON API (state object).
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* Values in the state object may be modified by connected clients
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*/
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void addToJsonState(JsonObject &root)
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{
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//root["user0"] = userVar0;
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}
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/*
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* readFromJsonState() can be used to receive data clients send to the /json/state part of the JSON API (state object).
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* Values in the state object may be modified by connected clients
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*/
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void readFromJsonState(JsonObject &root)
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{
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userVar0 = root["user0"] | userVar0; //if "user0" key exists in JSON, update, else keep old value
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//if (root["bri"] == 255) Serial.println(F("Don't burn down your garage!"));
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}
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/*
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* getId() allows you to optionally give your V2 usermod an unique ID (please define it in const.h!).
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* This could be used in the future for the system to determine whether your usermod is installed.
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*/
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uint16_t getId()
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{
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return 0xABCD;
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}
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//More methods can be added in the future, this example will then be extended.
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//Your usermod will remain compatible as it does not need to implement all methods from the Usermod base class!
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};
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