mirror of
https://github.com/playfultechnology/esp32-eyes.git
synced 2025-12-06 09:05:40 -08:00
90 lines
2.7 KiB
C++
90 lines
2.7 KiB
C++
/***************************************************
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* ESP32-Eyes, Copyright (c) 2023 Alastair Aitchison, Playful Technology
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* Based on previous work by Luis Llamas (www.luisllamas.es)
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*
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****************************************************/
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// INCLUDES
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// Built-in Arduino I2C library
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#include <Wire.h>
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// Defines all face functionality
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#include "Face.h"
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// CONSTANTS
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const byte joystickPins[] = {25, 26};
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const byte blinkPin = 16;
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const byte moodPins[] = {12, 13, 15};
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const eEmotions moods[] = {eEmotions::Angry, eEmotions::Sad, eEmotions::Surprised};
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// GLOBALS
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Face *face;
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void setup(void) {
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// Create a serial connection
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Serial.begin(115200);
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Serial.println(__FILE__ __DATE__);
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// Configure input pins
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pinMode(blinkPin, INPUT_PULLUP);
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// Create a new face
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face = new Face(/* screenWidth = */ 128, /* screenHeight = */ 64, /* eyeSize = */ 40);
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// Assign the current expression
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face->Expression.GoTo_Normal();
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// Assign a weight to each emotion
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//face->Behavior.SetEmotion(eEmotions::Normal, 1.0);
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//face->Behavior.SetEmotion(eEmotions::Angry, 1.0);
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//face->Behavior.SetEmotion(eEmotions::Sad, 1.0);
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// Automatically switch between behaviours (selecting new behaviour randomly based on the weight assigned to each emotion)
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face->RandomBehavior = true;
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// Automatically blink
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face->RandomBlink = true;
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// Set blink rate
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face->Blink.Timer.SetIntervalMillis(4000);
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// Automatically choose a new random direction to look
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face->RandomLook = false;
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}
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float mapFloat(float x, float in_min, float in_max, float out_min, float out_max) {
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// Check if x is outside the input range
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if (x <= in_min) return out_min;
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if (x >= in_max) return out_max;
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// Calculate the proportion of x relative to the input range
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float proportion = (x - in_min) / (in_max - in_min);
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// Map the proportion to the output range and return the result
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return (proportion * (out_max - out_min)) + out_min;
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}
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void loop(){
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static int lastMoveTime;
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// To avoid making eyes too twitchy (and to allow time for previous move animation to end),
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// only recalculate new position every 500ms
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if(millis() - lastMoveTime > 500) {
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int yRaw = analogRead(25);
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int xRaw = analogRead(26);
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float y = mapFloat(yRaw, 0, 4095, 1.0, -1.0);
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float x = mapFloat(xRaw, 0, 4095, -1.0, 1.0);
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face->Look.LookAt(x, y);
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lastMoveTime = millis();
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}
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// Blink when joystick pressed in
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if(!digitalRead(blinkPin)){
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face->DoBlink();
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}
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// Use this code to set a particular emotion from a button
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for(int i=0; i<3; i++){
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int32_t potValue = analogRead(moodPins[i]);
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float moodLevel = map(potValue, 0, 4095, 0.0, 2.0);
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face->Behavior.SetEmotion(moods[i], moodLevel);
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}
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// Update the face!
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face->Update();
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} |