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Block and Schematic Diagrams<\/p><\/div>\n
Code<\/p>\n
\/*Project Title: Box Breathing Box\r\n Team Members: Yuqi (Alice) Zhou\r\n Description: Arduino takes in inputs from three components: rocker switch, potentiometer, and keypad. \r\n The rocker switch is the switch for the overall system. Once on, the LED strip will change \r\n color one by one with speed dictated by the potentiometer's position. The output solenoid \r\n is fired based on that speed as well. Which solenoid is determined from the keypad input. \r\n Pin mapping:\r\n Arduino pin | role | description\r\n ------------|--------|-------------\r\n A0 input potentiometer pin 1\r\n A1 input keypad c3 \r\n A2 input keypad c2\r\n A3 input keypad c1\r\n 13 input keypad r1\r\n A4 input keypad r2\r\n A5 input keypad r3\r\n 2 output solenoid RE\r\n 3 output solenoid LAL \r\n 4 output solenoid MI\r\n 5 output solenoid DOL\r\n 6 output solenoid DOLH\r\n 7 output solenoid SOL\r\n 8 output solenoid LA\r\n 9 output solenoid SOLL\r\n 12 output LED Strip \r\n\r\n Keypad Code adapted from https:\/\/www.circuitbasics.com\/how-to-set-up-a-keypad-on-an-arduino\/\r\n*\/\r\n\r\n#include <PololuLedStrip.h>\r\n\r\n\/\/ Create an ledStrip object and specify the pin it will use.\r\nPololuLedStrip<12> ledStrip;\r\n\r\n\/\/ Create a buffer for holding the colors (3 bytes per color).\r\n#define LED_COUNT 60\r\nrgb_color colors[LED_COUNT];\r\n\r\n\/\/ interval bewteen individual LED light change, controlled by the potentiometer\r\nint delayTime = 500;\r\nint i = 0;\r\n\/\/ potentiometer value\r\nint pVal = 0;\r\n\r\n\/\/ LED strip colors *adjustable\r\nrgb_color blue = rgb_color(28, 73, 255);\r\nrgb_color green = rgb_color(46, 255, 47);\r\nunsigned long sTimer;\r\n\/\/ how many lights each side has\r\nint sFactor = 15;\r\n\r\n\/\/ link pin number to tone on the drum\r\nconst int SOLL = 9;\r\nconst int LAL = 3;\r\nconst int DOL = 5;\r\nconst int RE = 2;\r\nconst int MI = 4;\r\nconst int SOL = 7;\r\nconst int LA = 8;\r\nconst int DOLH = 6;\r\nint notes[] = {SOLL, LAL, DOL, RE, MI, SOL, LA, DOLH};\r\n\r\n\/\/ the pin to be pushed this round, default to 2\r\nint pushPin = 2;\r\n\r\n\/\/ initializing keypad\r\n#include <Keypad.h>\r\n\r\nconst byte ROWS = 3;\r\nconst byte COLS = 3;\r\n\r\nchar hexaKeys[ROWS][COLS] = {\r\n {'1', '2', '3'},\r\n {'4', '5', '6'},\r\n {'7', '8', '9'}\r\n};\r\n\r\nbyte rowPins[ROWS] = {13, A5, A4};\r\nbyte colPins[COLS] = {A3, A2, A1};\r\n\r\nKeypad notePad = Keypad(makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);\r\n\r\n\/\/flow rate (fastest and slowest breath rounds in milliseconds) *adjustable\r\nint durLow = 70;\r\nint durHigh = 300;\r\n\r\n\/\/ solenoid move function\r\nvoid sMove(int pushPin) {\r\n digitalWrite(pushPin, HIGH);\r\n delay(10);\r\n digitalWrite(pushPin, LOW);\r\n}\r\n\r\nvoid setup()\r\n{\r\n pinMode(A0, INPUT);\r\n for (uint16_t i = 0; i < LED_COUNT; i++) {\r\n colors[i] = blue;\r\n }\r\n ledStrip.write(colors, LED_COUNT);\r\n pinMode(SOLL, OUTPUT);\r\n pinMode(LAL, OUTPUT);\r\n pinMode(DOL, OUTPUT);\r\n pinMode(RE, OUTPUT);\r\n pinMode(MI, OUTPUT);\r\n pinMode(SOL, OUTPUT);\r\n pinMode(LA, OUTPUT);\r\n pinMode(DOLH, OUTPUT);\r\n}\r\n\r\nvoid loop()\r\n{\r\n sTimer = millis();\r\n \/\/ Update the colors.\r\n for (i; i < LED_COUNT; i++)\r\n {\r\n \/\/ note detection\r\n char note = notePad.getKey();\r\n int noteNum = note - '0';\r\n if (noteNum == 1) {\r\n pushPin = SOLL;\r\n } else if (noteNum == 2) {\r\n pushPin = LAL;\r\n } else if (noteNum == 3) {\r\n pushPin = DOL;\r\n } else if (noteNum == 4) {\r\n pushPin = RE;\r\n } else if (noteNum == 5) {\r\n pushPin = MI;\r\n } else if (noteNum == 6) {\r\n pushPin = SOL;\r\n } else if (noteNum == 7) {\r\n pushPin = LA;\r\n } else if (noteNum == 8) {\r\n pushPin = DOLH;\r\n }\r\n\r\n \/\/ solenoid control\r\n if ((millis() - sTimer) >= delayTime * sFactor) {\r\n sMove(pushPin);\r\n sTimer = millis();\r\n }\r\n \/\/ read potentiometer value\r\n pVal = analogRead(A0);\r\n \/\/ map into the time range of breath\r\n delayTime = map(pVal, 0, 255, durLow, durHigh);\r\n colors[i] = green;\r\n ledStrip.write(colors, LED_COUNT);\r\n delay(delayTime);\r\n }\r\n\r\n\/\/resetting the color at the end of the strip to start a new round\r\n if (i == LED_COUNT) {\r\n i = 0;\r\n for (uint16_t i = 0; i < LED_COUNT; i++) {\r\n colors[i] = blue;\r\n }\r\n ledStrip.write(colors, LED_COUNT);\r\n sMove(pushPin);\r\n }\r\n}<\/pre>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This device guides my breath with the box breathing technique through both visual (the LED lights) and auditory (steel tongue drum tones) channels. Moving Image: Power on….<\/p>\n","protected":false},"author":198,"featured_media":14180,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[89],"tags":[],"_links":{"self":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/posts\/14179"}],"collection":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/users\/198"}],"replies":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/comments?post=14179"}],"version-history":[{"count":7,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/posts\/14179\/revisions"}],"predecessor-version":[{"id":14279,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/posts\/14179\/revisions\/14279"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/media\/14180"}],"wp:attachment":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/media?parent=14179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/categories?post=14179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/f2021\/work\/wp-json\/wp\/v2\/tags?post=14179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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