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\/\/ Title: Portable Schedule Playback Device by Apples Group \r\n\/\/ Author: Lily, Stan, Cameron\r\n\/\/ Date: 5\/05\/23\r\n\/\/ Description: This code handles the logic for playing back the appropriate pre-recorded\r\n\/\/ recording stored in the microSD card depending on what hour of the day the dial is set to. \r\n\/\/ When the code boots for the first time, the rotary encoder is set to the current hour of the\r\n\/\/ day (read from the RTC) and thus this is the first recording that is played back. Each\r\n\/\/ recording is prefaced with a voice telling the time of the day. The code handles interruptions\r\n\/\/ at any point in the recording\/preface so the user can quickly browse to the desired recording.\r\n\/\/ \r\n\/\/\r\n\/\/ -------------------------------------------------\r\n\/\/ | Role | Variable Name | Arduino Pin |\r\n\/\/ -------------------------------------------------\r\n\/\/ Rotary Encoder | Right Pin | encoderPinA | 2 | https:\/\/www.nobleusa.com\/pdf\/xre.pdf\r\n\/\/ | Left Pin | encoderPinB | 3 |\r\n\/\/ -------------------------------------------------\r\n\/\/ MP3 Playback | RX Pin | pinDfpRX | 10 | https:\/\/markus-wobisch.blogspot.com\/search?q=DFPlayer\r\n\/\/ | TX Pin | pinDfpTX | 11 |\r\n\/\/ | Busy Pin | pinDfpBusy | 12 |\r\n\/\/ -------------------------------------------------\r\n\/\/ RTC | SCL Pin | pinSCL | A5 |\r\n\/\/ | SDA Pin | pinSDA | A4 |\r\n\/\/ -------------------------------------------------\r\n\r\nthe project title,\r\n(optionally) your names,\r\na description (short or long) of what the code does,\r\nany description of pin mapping that would be useful to somebody else trying to recreate your work,\r\nappropriate credit to any code source that you incorporated into your project, and\r\n\r\n\/\/\r\n\r\n\r\n \/* GLOBALS *\/\r\n\r\n\/\/ Rotary Encoder Globals \/\/\r\n#include <Keyboard.h>\r\nenum PinAssignments {\r\n encoderPinA = 2, \/\/ right\r\n encoderPinB = 3, \/\/ left\r\n};\r\n\r\nvolatile unsigned int encoderPos = 0; \/\/ a counter for the dial\r\nunsigned int lastReportedPos = 1; \/\/ change management\r\nstatic boolean rotating = false; \/\/ debounce management\r\nvolatile int rotationDelt;\r\nboolean A_set = false;\r\nboolean B_set = false;\r\nboolean clicked = false;\r\nvolatile int rotationPos = 1;\r\n\r\n\/\/ MP3 Playback Globals \/\/\r\n#include \"SoftwareSerial.h\"\r\nconst byte pinDfpRX = 10; \r\nconst byte pinDfpTX = 11; \r\nconst byte pinDfpBusy = 12; \r\nconst byte dfpVolume = 0x11; \/\/ set volume of DFPLayer - in range: 0x00-0x30 - default=0x30 \r\nSoftwareSerial mySerial(pinDfpRX, pinDfpTX);\r\n# define Start_Byte 0x7E\r\n# define Version_Byte 0xFF\r\n# define Command_Length 0x06\r\n# define End_Byte 0xEF\r\n# define Acknowledge 0x00 \/\/Returns info with command 0x41 [0x01: info, 0x00: no info]\r\n\r\n\/\/ RTC Globals \/\/\r\nconst byte pinSCL = A5;\r\nconst byte pinSDA = A4;\r\n#include <RTClib.h>\r\nRTC_DS3231 rtc;\r\n\r\n\r\n\/\/ Other Globals \/\/\r\nbool start = true;\r\nbool startRot = true;\r\nconst byte nfiles = 6; \/\/ number of mp3 files on SD card \r\nstatic byte ifile = 0; \/\/ number of file played next\r\nunsigned long tellTimeDelay = 800;\r\nbool playMemo = false;\r\nunsigned long memoDelayTimeStamp = 0;\r\nstatic byte nextFile = 0;\r\n\r\n\r\n\r\n\r\n\r\n \/* FUNCTIONS *\/\r\n\r\n\/\/ MP3 Playback Functions \/\/\r\n\/\/plays a file named Par2 from folder Par1\r\nvoid dfpExecute(byte CMD, byte Par1, byte Par2) {\r\n # define Start_Byte 0x7E \r\n # define Version_Byte 0xFF \r\n # define Command_Length 0x06 \r\n # define Acknowledge 0x00 \r\n # define End_Byte 0xEF \r\n \/\/ Calculate the checksum (2 bytes) \r\n uint16_t checksum = -(Version_Byte + Command_Length + CMD + Acknowledge + Par1 + Par2); \r\n \/\/ Build the command line \r\n uint8_t Command_line[10] = { Start_Byte, Version_Byte, Command_Length, CMD, Acknowledge, \r\n Par1, Par2, highByte(checksum), lowByte(checksum), End_Byte};\r\n\r\n \/\/ Send the command line to DFPlayer \r\n for (byte i=0; i<10; i++) mySerial.write( Command_line[i]); \r\n}\r\n\r\n\r\n\/\/ Rotary Encoder Functions \/\/\r\n\/\/ Interrupt on A changing state\r\nvoid doEncoderA() {\r\n \/\/ debounce\r\n if ( rotating ) delay (1); \/\/ wait a little until the bouncing is done\r\n\r\n \/\/ Test transition, did things really change?\r\n if ( digitalRead(encoderPinA) != A_set ) { \/\/ debounce once more\r\n A_set = !A_set;\r\n\r\n \/\/ adjust counter + if A leads B\r\n if ( A_set && !B_set )\r\n \/\/ encoderPos += 1;\r\n rotationDelt = 1;\r\n\r\n rotating = false; \/\/ no more debouncing until loop() hits again\r\n }\r\n}\r\n\r\n\/\/ Interrupt on B changing state, same as A above\r\nvoid doEncoderB() {\r\n if ( rotating ) delay (1);\r\n if ( digitalRead(encoderPinB) != B_set ) {\r\n B_set = !B_set;\r\n \/\/ adjust counter - 1 if B leads A\r\n if ( B_set && !A_set )\r\n \/\/encoderPos -= 1;\r\n rotationDelt = -1;\r\n\r\n rotating = false;\r\n }\r\n}\r\n\r\n\r\n\/\/ Print Debugging \/\/\r\n\/\/ formats and prints the time of the day (AM\/PM)\r\nvoid printTime(byte ifile){\r\n if(ifile == 12){\r\n Serial.print(ifile);\r\n }\r\n else{\r\n Serial.print(ifile % 12); \r\n }\r\n\r\n if(ifile >= 12){\r\n Serial.println(\"PM\");\r\n }\r\n else{\r\n Serial.println(\"AM\");\r\n }\r\n\r\n}\r\n\r\n\r\n\r\n\r\n\r\n\r\nvoid setup() {\r\n \/\/ Rotary Encoder Setup\r\n pinMode(encoderPinA, INPUT);\r\n pinMode(encoderPinB, INPUT);\r\n \/\/ turn on pullup resistors\r\n digitalWrite(encoderPinA, HIGH);\r\n digitalWrite(encoderPinB, HIGH);\r\n \/\/ encoder pin on interrupt 0 (pin 2)\r\n attachInterrupt(0, doEncoderA, CHANGE);\r\n \/\/ encoder pin on interrupt 1 (pin 3)\r\n attachInterrupt(1, doEncoderB, CHANGE);\r\n Keyboard.begin();\r\n \/\/ set the encoder position to the current\r\n \/\/ hour of the day\r\n rotationPos = rtc.now().hour();\r\n\r\n \/\/RTC Setup\r\n pinMode(pinSCL, OUTPUT);\r\n pinMode(pinSDA, INPUT);\r\n rtc.begin(); \/\/ initialize rtc\r\n\r\n\r\n Serial.println(\"\\n\\n\\n\\n\\n\\n\\n---------------------\\n\\n\");\r\n Serial.print(\"The hour of the day is \");\r\n printTime(rtc.now().hour());\r\n\r\n\r\n \/\/MP3 Player\r\n mySerial.begin(9600);\r\n pinMode(pinDfpBusy, INPUT); \/\/ init Busy pin from DFPlayer (lo: file is playing \/ hi: no file playing) \r\n dfpExecute(0x3F, 0x00, 0x00); \/\/ Send request for initialization parameters \r\n delay(5000);\r\n dfpExecute(0x06,0x00,dfpVolume); \/\/ set volume DL=0x00-0x30, default=0x30 \r\n delay(30); \/\/ have >20ms delays between commands \r\n\r\n}\r\n\r\n\r\n\r\n\r\n\r\nvoid loop() {\r\n unsigned long currTime = millis();\r\n\r\n \/\/ speaker plays the MEMO (after tellTimeDelay milliseconds have passed)\r\n if(playMemo && (currTime - memoDelayTimeStamp) > tellTimeDelay){\r\n Serial.print(\"Playing memo for \");\r\n printTime(ifile);\r\n dfpExecute(0x0F,0x02, nextFile);\r\n playMemo = false;\r\n }\r\n \r\n rotating = true; \/\/ reset the debouncer\r\n\r\n \/\/ register a left turn\r\n if(rotationDelt == -1) {\r\n Keyboard.press(KEY_LEFT_ARROW);\r\n rotationPos -= 1;\r\n if(rotationPos < 1){\r\n rotationPos = 24; \/\/ we wrap around to 24 when we go below 1\r\n }\r\n }\r\n\r\n \/\/ register a right turn\r\n else if(rotationDelt == 1) {\r\n Keyboard.press(KEY_RIGHT_ARROW);\r\n\r\n if(rotationPos > 24){\r\n rotationPos = 1; \/\/ we wrap around to 1 when we go over 24\r\n }\r\n }\r\n \r\n\r\n \/\/ if the encoder changed position...\r\n if(startRot || rotationDelt != 0) {\r\n\r\n Serial.println(rotationPos);\r\n startRot = false;\r\n\r\n ifile = rotationPos;\r\n Serial.print(\"Telling time for \");\r\n printTime(ifile);\r\n\r\n \/\/ ...speaker tells the TIME\r\n dfpExecute(0x0F,0x01,ifile);\r\n playMemo = true;\r\n nextFile = ifile;\r\n memoDelayTimeStamp = currTime;\r\n }\r\n\r\n Keyboard.releaseAll();\r\n rotationDelt = 0;\r\n\r\n}\r\n<\/pre>\nCAD Files:<\/p>\n
Mark’s Playback Device SW Files<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"Introduction: Our client Mark lives with a visual impairment and mild memory loss due to a traumatic brain injury. From our conversation with Mark and his caretaker Bill,…<\/p>\n","protected":false},"author":44,"featured_media":18403,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[100,159],"tags":[],"_links":{"self":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/18132"}],"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\/44"}],"replies":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/comments?post=18132"}],"version-history":[{"count":60,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/18132\/revisions"}],"predecessor-version":[{"id":18428,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/posts\/18132\/revisions\/18428"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/media\/18403"}],"wp:attachment":[{"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/media?parent=18132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/categories?post=18132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/courses.ideate.cmu.edu\/60-223\/s2023\/work\/wp-json\/wp\/v2\/tags?post=18132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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