Hey there
I built a puzzlebox. To measure Time i added a 7-segment display. Also, i added a Neopixel-Ring that shows visualy how much time is left. The goal of the puzzle-box is to find 3 keys to the corresponding key-switches. Each key-switch has its own LED (10 mm LED) which turns on, when the key-switch is turned. To start the Game I added another push button with an LED inside. Also i added a DF-Player to play sound as soon as the game starts.
When i turn on the Arduino (Nano-Clone) everything looks fine and as intended. The "Start-button" is blinking an the 7-Segment-Display shows "Play".
The problem i'm facing is the following:
As soon as I push the "Start-button" one LED (or sometimes multiple) of the "Key-switch"-LED start flickering. Sometimes the 7-Segment display does not work properly (also flickering and not showing the remaining Time correctly).
Could it be, that I did something wrong in my Coding?
This is the code i'm using:
// Module connection pins (Digital Pins)
#define CLK 8
#define DIO 7
#include <FastLED.h>
#define numberOfSeconds(_time_) ((_time_ / 1000)% 60)
#define numberOfMinutes(_time_) (((_time_ / 1000)/ 60) % 60)
#include <TM1637Display.h>
#define NUM_LEDS 12 //Anzahl LEDs
#define DATA_PIN 4
CRGB leds[NUM_LEDS];
int seconds;
int minutes;
const byte startLED = 5;
const byte startButton = 6;
unsigned long startTime;
int startLEDBlink = 500;
const uint8_t OFF[] = {0, 0, 0, 0};
// .GFEDCBA
const uint8_t PLAY[] = {B01110011, B00111000, B01011111, B01101110};
const uint8_t LOST[] = {B00111000, B00111111, B01101101, B01111001};
TM1637Display display(CLK, DIO);
unsigned long timeLimit = 3606000;
unsigned long timeLimitLEDRing = timeLimit;
int Counter = 1;
const byte anzahlSchluessel = 3;
byte schluessel[anzahlSchluessel] = {3, 10, 12};
byte schluesselLED[anzahlSchluessel] = {2, 9, 11};
bool schluesselLastState[anzahlSchluessel] = {1, 1, 1};
bool schluesselCurrentState[anzahlSchluessel] = {1, 1, 1};
byte schluesselAlleSchluessel[anzahlSchluessel] = {0, 0, 0};
#include <Arduino.h>
#include <SoftwareSerial.h>
#include <DFRobotDFPlayerMini.h>
SoftwareSerial mySoftwareSerial(A0, A1); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
void printDetail(uint8_t type, int value);
void setup() {
mySoftwareSerial.begin(9600);
Serial.begin(115200);
Serial.println();
Serial.println(F("DFRobot DFPlayer Mini Demo"));
Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));
if (!myDFPlayer.begin(mySoftwareSerial)) { //Use softwareSerial to communicate with mp3.
Serial.println(F("Unable to begin:"));
Serial.println(F("1.Please recheck the connection!"));
Serial.println(F("2.Please insert the SD card!"));
while (true) {
delay(0); // Code to compatible with ESP8266 watch dog.
}
}
Serial.println(F("DFPlayer Mini online."));
myDFPlayer.volume(24); //Set volume value. From 0 to 30
pinMode(5, OUTPUT);
pinMode(6, INPUT_PULLUP);
display.setBrightness(0x0c);
display.setSegments(OFF);
FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS); // GRB ordering is typical
FastLED.setBrightness(100);
for (int i = 0; i < NUM_LEDS; i++) {
if (i < 7) {
leds[i] = CRGB::Green;
} else if (i < 10) {
leds[i] = CRGB::Yellow;
}
else {
leds[i] = CRGB::Red;
}
}
FastLED.show();
startTime = millis();
displayText();
for (int i = 0; i < anzahlSchluessel; i++) {
pinMode(schluessel[i], INPUT_PULLUP);
pinMode(schluesselLED[i], OUTPUT);
}
}
void countdown() {
long timeRemaining = timeLimit - millis();
while (timeRemaining > 0) {
if (timeRemaining <= ((timeLimitLEDRing - 2000) - (Counter * ((timeLimitLEDRing - 3000) / 12))) && Counter <= 12) {
leds[Counter - 1] = CRGB::Black;
Counter++;
FastLED.show();
}
seconds = numberOfSeconds(timeRemaining);
minutes = numberOfMinutes(timeRemaining);
display.showNumberDecEx(seconds, 0, true, 2, 2);
display.showNumberDecEx(minutes, 0x40, true, 2, 0);
timeRemaining = timeLimit - millis();
for (int i = 0; i < anzahlSchluessel; i++) {
schluesselCurrentState[i] = digitalRead(schluessel[i]);
if (schluesselCurrentState[i] != schluesselLastState[i]) {
if (schluesselCurrentState[i] == 0) {
digitalWrite(schluesselLED[i], HIGH);
}
else if (schluesselCurrentState[i] == 1) {
digitalWrite(schluesselLED[i], LOW);
}
}
schluesselLastState[i] = schluesselCurrentState[i];
}
if (memcmp(schluesselCurrentState, schluesselAlleSchluessel, 3) == 0) {
onSolve();
}
}
}
void displayText() {
display.setSegments(PLAY);
delay(2000);
}
void lost() {
myDFPlayer.play(3);
while (1) {
fill_solid( leds, NUM_LEDS, CRGB::Red);
FastLED.show();
display.setSegments(OFF);
delay(500);
fill_solid( leds, NUM_LEDS, CRGB::Black);
display.setSegments(LOST);
FastLED.show();
delay(500);
}
}
void onSolve() {
myDFPlayer.play(2);
delay(50);
myDFPlayer.volume(30);
while (1) {
display.setSegments(OFF);
for (int i = 0; i < anzahlSchluessel; i++) {
digitalWrite(schluesselLED[i], LOW);
}
digitalWrite(startLED, LOW);
for (int i = 0; i < NUM_LEDS; i++) {
leds[i] = CRGB::Black;
FastLED.show();
delay(50);
}
for (int i = 0; i < anzahlSchluessel; i++) {
digitalWrite(schluesselLED[i], HIGH);
}
digitalWrite(startLED, HIGH);
display.showNumberDecEx(seconds, 0, true, 2, 2);
display.showNumberDecEx(minutes, 0x40, true, 2, 0);
for (int i = 0; i < NUM_LEDS; i++) {
leds[i] = CRGB::Green;
FastLED.show();
delay(50);
}
}
}
void loop() {
if (digitalRead(startButton) == 1) {
if (millis() > startTime + startLEDBlink) {
if (digitalRead(startLED) == HIGH) {
digitalWrite(startLED, LOW);
startTime = millis();
}
else {
digitalWrite(startLED, HIGH);
startTime = millis();
}
}
}
else if (digitalRead(startButton) == 0) {
digitalWrite(startLED, LOW);
timeLimit = timeLimit + millis();
myDFPlayer.play(1); //Play the first mp3
displayText();
countdown();
lost();
}
}
I tried to draw the circuit (DF-Player is connected to A0 and A1):
I tried changing the Arduino. This did not help.
Does someone have an idea why this is not working properly?
Thank you for any advice!
). If the problem still occurs when I implemented the new ring I'll let you know!