Computer Says: Break Time!

 *** SPOILER ALERT ***

* Dear avid readers: if you intend to play the game please wait to read this! *

For the Communication assignment, I first considered getting inspiration from the idea of assigning items on my desk into categories. Then I looked at my desk.

Yeah... no.

I was also thinking about the serial monitor communication and how I might be able to write the computer as a character, and the materials for this assignment (specifically the RFID reader) reminded me of making games.... and kaPOW! This idea:

Ta-da!

So easy, right? Somehow a part of me believes that just a little bit, despite logic and consistent evidence to the contrary. Fortunately, Fotoon was kind enough to lend me her RFID reader, and I had an extra Uno board from last semester, so I knew this would be possible. 

Many hours later, I scrapped the idea of the LED matrix and reused my "Simon Says" code with some modifications. I also went from the four digit seven segment display to the single digit version, and made a simpler countdown as a result. I struggled pretty hard on understanding much of the code and some of the wiring (not where it went but what it did exactly) for these components, and what I have below is largely an experimental mish-mosh of sample-code, found-on-internet-code, and code-that-could-probably-be-simplified.

My feelings while trying to make things work

I like the idea of "think outside the box" puzzles, and I wanted to get back into the swing of test playing concepts. I always worry problems like this will be too obvious, but hopefully people don't figure out the trick right away. :) 

Inside!

Outisde! (tweaked the message after this photo)

The following is a playthrough video, a schematic, and code for both programs that are running (one requires connection to the computer for the serial monitor, the other just need battery power).

Enjoy!

As always,
CapriciousClockwinder2345620 + Toupe4
(no ledge)

	#include <SPI.h>
	#include <MFRC522.h>
	#define SS_PIN 10
	#define RST_PIN 9
	MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
	// from _75 hc, setting up on/off mapping to make each digit in 7-seg display
	byte seven_seg_digits[10] = { B11111100, // = 0
	B01100000, // = 1
	B11011010, // = 2
	B11110010, // = 3
	B01100110, // = 4
	B10110110, // = 5
	B10111110, // = 6
	B11100000, // = 7
	B11111110, // = 8
	B11100110 // = 9
	};
	//7-seg display pin assignments
	int latchPin = 3;
	int clockPin = 4;
	int dataPin = 2;
	void setup() {
	Serial.begin(9600);
	SPI.begin(); // Initiate SPI bus
	mfrc522.PCD_Init(); // Initiate MFRC522
	Serial.println("Break time, Human!");
	delay(500);
	Serial.println("Select difficulty for your 'Super Fun Break' game:");
	delay(500);
	Serial.println("1: Easy");
	delay(500);
	Serial.println("2: Medium");
	delay(1000);
	Serial.println("3: Brutal >:)");
	// Set latchPin, clockPin, dataPin as output
	pinMode(latchPin, OUTPUT);
	pinMode(clockPin, OUTPUT);
	pinMode(dataPin, OUTPUT);
	}
	// display a number on the digital segment display
	void numba(byte digit) {
	// set the latchPin to low potential, before sending data
	digitalWrite(latchPin, LOW);
	// the original data (bit pattern)
	shiftOut(dataPin, clockPin, LSBFIRST, seven_seg_digits[digit]);
	// set the latchPin to high potential, after sending data
	digitalWrite(latchPin, HIGH);
	}
	void loop() {
	if ( ! mfrc522.PICC_IsNewCardPresent())
	{
	//return;
	if(Serial.available() > 0) {
	char x = Serial.read();
	Serial.println(x);
	if(x == '1') {
	Serial.println("Lame...");
	delay(1000);
	//makes the timer "act weird"
	for (byte digit = 10; digit > 0; --digit) {
	delay(100);
	numba(digit - 1);
	}
	numba(7);
	delay(100);
	numba(3);
	delay(100);
	numba(5);
	delay(100);
	numba(2);
	delay(100);
	numba(8);
	delay(100);
	numba(1);
	delay(100);
	numba(9);
	delay(100);
	numba(4);
	delay(100);
	numba(2);
	delay(100);
	numba(8);
	delay(100);
	numba(8);
	delay(100);
	numba(1);
	delay(100);
	numba(9);
	delay(100);
	numba(4);
	delay(100);
	numba(2);
	delay(100);
	Serial.println("Oops! Looks like that difficulty doesn't work yet. Try again!");
	}
	if(x == '2') {
	Serial.println("Let's see...");
	delay(1000);
	//makes the timer "act weird"
	for (byte digit = 0; digit < 10; ++digit) {
	delay(100);
	numba(digit + 1);
	}
	for (byte digit = 0; digit < 10; ++digit) {
	delay(100);
	numba(digit + 1);
	}
	for (byte digit = 0; digit < 10; ++digit) {
	delay(100);
	numba(digit + 1);
	}
	Serial.println("Huh");
	delay(2000);
	Serial.println("Looks like there are some technical issues going on.");
	delay(2000);
	Serial.println("So weird.");
	delay(750);
	Serial.println("Well, guess you need to select a different option!");
	}
	if(x == '3') {
	Serial.println("AWWWWWWWWWWW YEAH!");
	delay(3000);
	Serial.println("Ahem.");
	delay(500);
	Serial.println("Difficulty set. Activate your play session by scanning your 'FUN' card where instructed.");
	Serial.println("Check the countdown timer - your time starts now!");
	for (byte digit = 10; digit > 0; --digit) {
	delay(3500);
	numba(digit - 1);
	}
	delay(10000);
	Serial.println("Um... did you read the instructions?");
	}
	}
	}
	// Select one of the cards
	if ( ! mfrc522.PICC_ReadCardSerial())
	{
	return;
	}
	//Show UID on serial monitor
	//Serial.print("UID tag :");
	String content= "";
	byte letter;
	for (byte i = 0; i < mfrc522.uid.size; i++)
	{
	//Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
	//Serial.print(mfrc522.uid.uidByte[i], HEX);
	content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
	content.concat(String(mfrc522.uid.uidByte[i], HEX));
	}
	//Serial.println();
	//Serial.print("Message : ");
	content.toUpperCase();
	if (content.substring(1) == "9B 95 EB 0A") //change here the UID of the card/cards that you want to give access
	{
	Serial.println("Wow, you figured it out! Nice job!");
	Serial.println();
	Serial.println("Now it's time to play the REAL game!");
	delay(3000); //keeps from spamming the serial monitor
	Serial.println("Oh, break time's over! Wasn't that fun??");
	delay(1000);
	Serial.println("Now get back to work! ^_^");
	delay(3000);
	}
	else { //if you try a different card or tag
	Serial.println("Um, no. I said 'FUN' card, remember?");
	delay(3000);
	}
	}
	/*some extra code I tried and either didn't figure out or didn't need:
	Serial.print("UID tag :");
	String content= "";
	byte letter;
	for (byte i = 0; i < mfrc522.uid.size; i++)
	{
	Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
	Serial.print(mfrc522.uid.uidByte[i], HEX);
	content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
	content.concat(String(mfrc522.uid.uidByte[i], HEX));
	}
	Serial.println();
	Serial.print("Message : ");
	content.toUpperCase();
	if (content.substring(1) == "9B 95 EB 0A") //change here the UID of the card/cards that you want to give access
	{
	Serial.println("Authorized access");
	Serial.println();
	Display(9);
	delay(5000);
	Display(10);
	delay(5000);
	Display(11);
	delay(5000);
	Display(12);
	delay(5000);
	Display(13);
	delay(5000);
	Display(14);
	delay(5000);
	Display(15);
	delay(5000);
	}
	else {
	Serial.println(" Access denied");
	delay(3000);
	}*/
	/*int latch=5; //74HC595 pin 9 STCP
	int clock=6; //74HC595 pin 10 SHCP
	int data=4; //74HC595 pin 8 DS
	/*unsigned char table[]=
	{0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c
	,0x39,0x5e,0x79,0x71,0x00};*/
	/*const byte numbers[10][7] = {
	// 0: segment lit, 1: unlit
	// a b c d e f g
	{0, 0, 0, 0, 0, 0, 1}, // 0
	{1, 0, 0, 1, 1, 1, 1}, // 1
	{0, 0, 1, 0, 0, 1, 0}, // 2
	{0, 0, 0, 0, 1, 1, 0}, // 3
	{1, 0, 0, 1, 1, 0, 0}, // 4
	{0, 1, 0, 0, 1, 0, 0}, // 5
	{0, 1, 0, 0, 0, 0, 0}, // 6
	{0, 0, 0, 1, 1, 1, 1}, // 7
	{0, 0, 0, 0, 0, 0, 0}, // 8
	{0, 0, 0, 1, 1, 0, 0}, // 9
	};*/
	/*void Display(unsigned char num) //this is a function for the LED display
	{
	digitalWrite(latch,LOW);
	shiftOut(data,clock,MSBFIRST,table[num]);
	digitalWrite(latch,HIGH);
	}*/
	//THIS IS THE SECOND SET OF CODE FOR SIMON SAYS WITH THE RFID!!!!!!!!
	#include <SPI.h>
	#include <MFRC522.h>
	#define SS_PIN 10
	#define RST_PIN 9
	#define greenLED 2
	#define blueLED 3
	#define yellowLED 4
	#define gButton 5
	#define bButton 6
	#define yButton 7
	#define start 8
	MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
	void setup() {
	Serial.begin(9600); // Initiate a serial communication
	SPI.begin(); // Initiate SPI bus
	mfrc522.PCD_Init(); // Initiate MFRC522
	Serial.println("Approximate your card to the reader...");
	Serial.println();
	pinMode(greenLED, OUTPUT);
	pinMode(blueLED, OUTPUT);
	pinMode(yellowLED, OUTPUT);
	pinMode(gButton, INPUT_PULLUP);
	pinMode(bButton, INPUT_PULLUP);
	pinMode(yButton, INPUT_PULLUP);
	pinMode(start, INPUT_PULLUP);
	}
	void loop() {
	// Look for new cards
	if ( ! mfrc522.PICC_IsNewCardPresent())
	{
	return;
	}
	// Select one of the cards
	if ( ! mfrc522.PICC_ReadCardSerial())
	{
	return;
	}
	//Show UID on serial monitor
	//Serial.print("UID tag :");
	String content= "";
	byte letter;
	for (byte i = 0; i < mfrc522.uid.size; i++)
	{
	//Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
	//Serial.print(mfrc522.uid.uidByte[i], HEX);
	content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
	content.concat(String(mfrc522.uid.uidByte[i], HEX));
	}
	//Serial.println();
	//Serial.print("Message : ");
	content.toUpperCase();
	if (content.substring(1) == "9B 95 EB 0A") //change here the UID of the card/cards that you want to give access
	{ //that time I wrote snarky dialogue and then remembered this would never be seen :'(
	Serial.println("Oh, you want to play Simon Says?");
	delay(200);
	Serial.println("BRING IT");
	Serial.println();
	delay(200);
	//simon says sequence
	digitalWrite(blueLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(yellowLED, HIGH);
	delay(200);
	digitalWrite(yellowLED, LOW);
	delay(200);
	digitalWrite(blueLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(yellowLED, HIGH);
	delay(200);
	digitalWrite(yellowLED, LOW);
	delay(200);
	digitalWrite(blueLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(yellowLED, HIGH);
	delay(200);
	digitalWrite(yellowLED, LOW);
	delay(200);
	digitalWrite(blueLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	delay(200);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(greenLED, LOW);
	delay(200);
	Serial.print("YOUR TURN >:)");
	Serial.print("Press the 3 leftmost buttons to replay the sequence. Press the right button to reset, then rescan");
	Serial.print("and prepare to lose again!!!!!");
	while (digitalRead(start) == HIGH) {
	if (digitalRead(gButton) == LOW) {
	digitalWrite(blueLED, LOW);
	digitalWrite(greenLED, HIGH);
	digitalWrite(yellowLED,LOW);
	}
	if (digitalRead(bButton) == LOW) {
	digitalWrite(blueLED, HIGH);
	digitalWrite(greenLED, LOW);
	digitalWrite(yellowLED,LOW);
	}
	if (digitalRead(yButton) == LOW) {
	digitalWrite(blueLED, LOW);
	digitalWrite(greenLED, LOW);
	digitalWrite(yellowLED,HIGH);
	}
	if (digitalRead(start) == LOW) {
	digitalWrite(blueLED, HIGH);
	digitalWrite(yellowLED, HIGH);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	digitalWrite(yellowLED, LOW);
	digitalWrite(greenLED, LOW);
	delay(200);
	digitalWrite(blueLED, HIGH);
	digitalWrite(yellowLED, HIGH);
	digitalWrite(greenLED, HIGH);
	delay(200);
	digitalWrite(blueLED, LOW);
	digitalWrite(yellowLED, LOW);
	digitalWrite(greenLED, LOW);
	return;
	}
	else {
	digitalWrite(blueLED, LOW);
	digitalWrite(greenLED, LOW);
	digitalWrite(yellowLED,LOW);
	}
	}
	}
	else {
	Serial.println(" Access denied");
	delay(3000);
	}
	}

view raw breaktimeandsimonsays.ino hosted with ❤ by GitHub

PS thanks to Random Nerd Tutorials for providing some code that helped me understand and use the RFID