Code<\/h3>\n\/*\r\n* Good Morning Phone Jail\r\n* Michelle Liu\r\n* \r\n* An assistive device that prevents you from going on your phone in the morning by\r\n* creating a loud buzzing noise when your phone is removed from its surface in the\r\n* hour after your alarm goes off.\r\n* \r\n* Pin Map:\r\n variable name | mode | pin | description\r\n -----------------------------------------------\r\n SOUND_GATE_PIN | input | 2 | detect sound from mic\r\n SOUND_ENVELOPE_PIN | input | A3 | read sound from mic\r\n PHOTO_PIN | input | A0 | reads IR sensor data\r\n BUZZER_PIN | output | 9 | makes buzzing noise\r\n* \r\n* Credits:\r\n* \r\n* LCD display code referenced from the course website: \r\n* https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/tutorials\/I2C-lcd\r\n* \r\n* Piezo buzzer code:\r\n* https:\/\/www.instructables.com\/How-to-use-a-Buzzer-Arduino-Tutorial\/\r\n*\/\r\n\r\n\r\n#include <Wire.h>\r\n#include <LiquidCrystal_I2C.h>\r\n\r\nLiquidCrystal_I2C screen(0x27, 16, 2);\r\n\r\nconst int SOUND_GATE_PIN = 2;\r\nconst int SOUND_ENVELOPE_PIN = A3;\r\nconst int PHOTO_PIN = A0;\r\nconst int BUZZER_PIN = 9;\r\n\r\nconst int SOUND_THRESHOLD = 300;\r\nconst int LIGHT_THRESHOLD = 320;\r\n\r\n\/\/ actual mode (60 min)\r\nconst unsigned long WAIT = 60 * 60 * 1000;\r\n\r\n\/\/ demo mode (30 sec)\r\n\/\/const unsigned long WAIT = 30000;\r\n\r\nboolean timerActive = false;\r\nunsigned long timer = 0;\r\nint dispDelay = 0;\r\n\r\nvoid setup() {\r\n Serial.begin(9600);\r\n pinMode(SOUND_GATE_PIN, INPUT);\r\n pinMode(PHOTO_PIN, INPUT);\r\n pinMode(BUZZER_PIN, OUTPUT);\r\n\r\n screen.init();\r\n\r\n \/\/ set cursor to home position, i.e. the upper left corner\r\n screen.home();\r\n\r\n timerActive = false;\r\n}\r\n\r\n\/\/ convert milliseconds to a string for display on the LCD\r\nString millisToString(unsigned long currentMillis) {\r\n unsigned long seconds = currentMillis \/ 1000;\r\n unsigned long minutes = seconds \/ 60;\r\n unsigned long hours = minutes \/ 60;\r\n unsigned long days = hours \/ 24;\r\n currentMillis %= 1000;\r\n seconds %= 60;\r\n minutes %= 60;\r\n hours %= 24;\r\n return (String(hours) + \":\" + String(minutes) + \":\" + String(seconds));\r\n}\r\n\r\n\/\/ print the current amount of time left on the timer\r\nvoid printTime() {\r\n screen.clear();\r\n screen.setCursor(0, 0);\r\n if (!timerActive) {\r\n screen.noDisplay();\r\n screen.noBacklight();\r\n } else {\r\n screen.backlight();\r\n screen.display();\r\n screen.print(\"Time left: \");\r\n screen.setCursor(0, 1);\r\n unsigned long timeLeft = WAIT - (millis() - timer);\r\n screen.print(millisToString(timeLeft));\r\n }\r\n}\r\n\r\n\r\nvoid loop() {\r\n int sound = analogRead(SOUND_ENVELOPE_PIN);\r\n \r\n printTime();\r\n\r\n \/\/ case 1: timer is currently active\r\n if (timerActive && millis() - timer < WAIT) {\r\n int photo = analogRead(PHOTO_PIN);\r\n\r\n \/\/ play a sound if no device is detected\r\n if (photo >= LIGHT_THRESHOLD) {\r\n tone(BUZZER_PIN, 500);\r\n } else {\r\n noTone(BUZZER_PIN);\r\n }\r\n } else if (!timerActive && sound >= SOUND_THRESHOLD) {\r\n \/\/ case 2: alarm detected -> activate the timer\r\n \r\n \/\/ start timer\r\n timerActive = true;\r\n timer = millis();\r\n Serial.print(\"Timer activated: \");\r\n Serial.println(sound);\r\n noTone(BUZZER_PIN);\r\n } else if (timerActive && millis() - timer >= WAIT) {\r\n \/\/ case 3: time is up -> deactivate timer & turn off buzzer\r\n timerActive = false;\r\n timer = millis();\r\n\r\n noTone(BUZZER_PIN);\r\n screen.clear();\r\n screen.setCursor(0, 0);\r\n screen.print(\"Timer complete!\");\r\n\r\n \/\/ beeping sound to indicate timer is complete\r\n for (int i = 0; i < 5; i++) {\r\n tone(BUZZER_PIN, 1000);\r\n delay(200); \/\/ on for 1 sec\r\n noTone(BUZZER_PIN); \/\/ Stop sound\r\n delay(200);\r\n }\r\n delay(3000);\r\n } else {\r\n timer = millis();\r\n noTone(BUZZER_PIN);\r\n }\r\n delay(300);\r\n}<\/pre>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
An assistive device that prevents you from going on your phone in the morning by creating a loud buzzing noise when your phone is removed from its surface…<\/p>\n","protected":false},"author":50,"featured_media":18033,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"video","meta":[],"categories":[89],"tags":[],"_links":{"self":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/17919"}],"collection":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/users\/50"}],"replies":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/comments?post=17919"}],"version-history":[{"count":19,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/17919\/revisions"}],"predecessor-version":[{"id":18040,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/17919\/revisions\/18040"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/media\/18033"}],"wp:attachment":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/media?parent=17919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/categories?post=17919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/tags?post=17919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}