{"id":6391,"date":"2023-11-06T17:52:12","date_gmt":"2023-11-06T17:52:12","guid":{"rendered":"http:\/\/mc.scsiraidguru.com\/?page_id=6391"},"modified":"2024-03-08T00:29:19","modified_gmt":"2024-03-08T00:29:19","slug":"day-1-pb-led","status":"publish","type":"page","link":"https:\/\/mc.scsiraidguru.com\/index.php\/arduino\/30-days-in-space\/day-1-pb-led\/","title":{"rendered":"Day 1: PB + LED"},"content":{"rendered":"\t\t
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Wow! The just opened.\u00a0 Standing outside is my crew.\u00a0 \u00a0I now have access to my spart parts lab.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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#include <Arduino.h> uncomment if using IDE other than Arduino.  I have a Raspberry PI that I will be using with Arduino IDE.\n\/*\narray for crew\n1      1701796041     Capt.   Douglas     Adams     AA    B3    3C    29\n2      23715925245    Lt.     Ford        Prefect   ED    9F    FC    2D\n# 3    2027724463     Sgt.    Authur      Dent      CA    4D    F4    3F  \/\/Returned with damaged RFID\n4      162814481      Eng.    Kieran      McKenney  A2    51    2C    51\n5      16711203167    Blank   Blank       Blank     A7    0B    CB    A7\n# 6    18358204167    Blank   Blank       Blank     B7    3A    CC    A7  \/\/Returned with damaged RFID\n\n    String crew[rows][columns] = { { \"1\", \"1701796041\", \"Capt.\", \"Douglas\", \"Adams\", \"AA\", \"B3\", \"3C\", \"29\", \"Granted\"},\n                                   { \"2\", \"23715925245\", \"Lt.\", \"Ford\", \"Prefect\", \"ED\", \"9F\", \"FC\", \"2D\", \"Granted\" },\n                                   { \"3\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\" },\n                                   { \"4\", \"162814481\", \"Eng.\", \"Kieran\", \"McKenney\", \"A2\", \"51\", \"2C\", \"51\", \"Granted\" },\n                                   { \"5\", \"16711203167\", \"\", \"\", \"\", \"A7\", \"0B\", \"CB\", \"A7\", \"Denied\"},\n                                   { \"6\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\"} };\n*\/\n\n#include <SPI.h>\n#include <MFRC522.h>\n#include <Wire.h>  \/\/ Library for I2C Wire\n\n\/\/ C++ creates class objects.  The class is LiquidCrystal_I2C.  Each LCD has its own class based on its address.\n\n#include <LiquidCrystal_I2C.h> \/\/ Library for I2C LCD displays\nLiquidCrystal_I2C lcd_20(0x20, 20, 4); \/\/ I2C address 0x20, 20 column and 4 rows\nLiquidCrystal_I2C lcd_21(0x21, 20, 4); \/\/ I2C address 0x21, 20 column and 4 rows\nLiquidCrystal_I2C lcd_22(0x22, 20, 4); \/\/ I2C address 0x22, 20 column and 4 rows\nLiquidCrystal_I2C lcd_23(0x23, 20, 4); \/\/ I2C address 0x23, 20 column and 4 rows\nLiquidCrystal_I2C lcd_24(0x24, 20, 4); \/\/ I2C address 0x24, 20 column and 4 rows\nLiquidCrystal_I2C lcd_25(0x25, 20, 4); \/\/ I2C address 0x25, 20 column and 4 rows\nLiquidCrystal_I2C lcd_26(0x26, 20, 4); \/\/ I2C address 0x25, 20 column and 4 rows\nLiquidCrystal_I2C lcd_27(0x27, 20, 4); \/\/ I2C address 0x25, 20 column and 4 rows\n\n\/* Typical pin layout used:\n * -----------------------------------------------------------------------------------------\n *             MFRC522      Arduino       Arduino   Arduino    Arduino          Arduino\n *             Reader\/PCD   Uno\/101       Mega      Nano v3    Leonardo\/Micro   Pro Micro\n * Signal      Pin          Pin           Pin       Pin        Pin              Pin\n * -----------------------------------------------------------------------------------------\n * RST\/Reset   RST          9             5         D9         RESET\/ICSP-5     RST\n * SPI SS      SDA(SS)      10            53        D10        10               10\n * SPI MOSI    MOSI         11 \/ ICSP-4   51        D11        ICSP-4           16\n * SPI MISO    MISO         12 \/ ICSP-1   50        D12        ICSP-1           14\n * SPI SCK     SCK          13 \/ ICSP-3   52        D13        ICSP-3           15\n *\n *\/\n\n#define SSPin 53\/\/define sda pin\n#define RSTPin 49 \/\/define reset pin\n#\n\/\/Cabin Light\n\/\/ #define SwitchPin_22 22\n#define RedLed_22 22\n#define SwitchPin_23 23\n\n\/\/Opening Front View\n#define WhiteLed_24 24\n#define SwitchPin_25 25\n\n\n\/\/Opening Rear View\n#define BlueLed_26 26\n#define SwitchPin_27 27\n\n\n\nint redPin = 8; \/\/pin connected to red cathode of RGB LED\nint greenPin = 9; \/\/pin connected to green cathode of RGB LED\nint bluePin = 10; \/\/pin connected to blue cathode of RGB LED\nint IntRC[4]; \/\/ This converts the key fob ID to integers\nint Dly = 5000;\n\nString readCard[4]; \/\/array for storing the UID of the card, 4 is the size because it will store 4 hexadecimal values but convert to string for easy identity checking later on\n\nMFRC522 mfrc522(SSPin, RSTPin); \/\/create instance of mfrc522 class\nMFRC522::MIFARE_Key key;        \/\/create key structure used to store card info\n\n\/\/custom color writer func for rbg led\nvoid RGBColorPicker(int redValue, int greenValue, int blueValue) { \/\/3 parameters, red, green, blue value are used for writing the different color values to make a single color to display on the LED\n  analogWrite(redPin, redValue); \/\/write specific value for red aspect of the RGB LED\n  analogWrite(greenPin, greenValue); \/\/write specific value for green aspect of the RGB LED\n  analogWrite(bluePin, blueValue); \/\/write specific value for blue aspect of the RGB LED\n\n}\n\n\/\/reads card uid stores in string\nString readCardUID(String UIDToRead) { \/\/parameter: UIDToRead used to pass a string in which we want to store the UID\n  for (int i = 0; i < mfrc522.uid.size; i++){ \/\/ create a loop to go through the UID, for which the end of the reading is defined by the size\n    readCard[i] = String(mfrc522.uid.uidByte[i]); \/\/mfrc522.uid.uidByte = an array containing the entire uid for our card but we can only take it out one byte at a time; convert to string so we can store it in our redCard array\n    IntRC[i] = readCard[i].toInt();\n    UIDToRead = UIDToRead + readCard[i]; \/\/continuously concatanate the read byte into our passed string, UIDToRead\n  }\n  return(UIDToRead);\n}\n\nvoid setup() {\n  \/\/ Arduino Mega on I2C Bus\n  \/\/ I usually connect my Arduino devices and Raspberry Pi devices to the I2C bus.  This will start the addresses at 0x50.\n  Wire.begin(0x50);\n\n  \/\/DIP Switch for Cabin Light\n  pinMode(RedLed_22, OUTPUT);\n  pinMode(SwitchPin_23, INPUT);\n\n  pinMode(WhiteLed_24, OUTPUT);\n  pinMode(SwitchPin_25, INPUT);\n\n  pinMode(BlueLed_26, OUTPUT);\n  pinMode(SwitchPin_27, INPUT);\n\n\n  \/\/DIP Switch for Opening\n\n  \/\/ I2C LCD screens are on addresses 0x20 to 0x27.  This code is used to find all of the I2C LCDs attached.\n  lcd_20.clear();   \/\/ clear display 0x20\n  lcd_20.init(); \/\/ initialize the lcd\n  lcd_20.backlight();\n  lcd_20.setCursor(0, 0);\n  lcd_20.print(\"0x20\");\n\n  lcd_21.clear();   \/\/ clear display 0x21\n  lcd_21.init(); \/\/ initialize the lcd\n  lcd_21.backlight();\n  lcd_21.setCursor(0, 0);\n  lcd_21.print(\"0x21\");\n\n  lcd_22.clear();   \/\/ clear display 0x22\n  lcd_22.init(); \/\/ initialize the lcd\n  lcd_22.backlight();\n  lcd_22.setCursor(0, 0);\n  lcd_22.print(\"0x22\");\n\n  lcd_23.clear();   \/\/ clear display 0x23\n  lcd_23.init(); \/\/ initialize the lcd\n  lcd_23.backlight();\n  lcd_23.setCursor(0, 0);\n  lcd_23.print(\"0x23\");\n\n  lcd_24.clear();   \/\/ clear display 0x24\n  lcd_24.init(); \/\/ initialize the lcd\n  lcd_24.backlight();\n  lcd_24.setCursor(0, 0);\n  lcd_24.print(\"0x24\");\n\n  lcd_25.clear();   \/\/ clear display 0x25\n  lcd_25.init(); \/\/ initialize the lcd\n  lcd_25.backlight();\n  lcd_25.setCursor(5, 0);         \/\/ move cursor to   (5, 0)\n  lcd_25.print(\"Welcome To\");\n  lcd_25.setCursor(4, 1);         \/\/ move cursor to   (4, 1)\n  lcd_25.print(\"The Heart of\");\n  lcd_25.setCursor(3, 2);         \/\/ move cursor to   (3, 2)\n  lcd_25.print(\"Stainless Steel\");\n\n  lcd_26.clear();   \/\/ clear display 0x26\n  lcd_26.init(); \/\/ initialize the lcd\n  lcd_26.backlight();\n\n  \/\/ 0x27 is in use with the RFID tagging system.\n  lcd_27.clear();   \/\/ clear display 0x27\n  lcd_27.init(); \/\/ initialize the lcd 0x27\n  lcd_27.backlight();\n\n  \/\/define RGB LED outputs\n  pinMode(redPin, OUTPUT);\n  pinMode(greenPin, OUTPUT);\n  pinMode(bluePin, OUTPUT);\n\n  RGBColorPicker(0,0,255); \/\/initialize our RGB LED at color blue\n  SPI.begin(); \/\/begin SPI bus\n\n  mfrc522.PCD_Init(); \/\/initialize mfrc522 card\n  for (byte i = 0; i < 6; i++){\n    key.keyByte[i] = 0xFF; \/\/set key security id values to 0xFF across the board\n  }\n        lcd_27.setCursor(0, 0);         \/\/ move cursor to   (0, 0)\n        lcd_27.print(\"Scan \");        \/\/ print message at (0, 0)\n}\n\nvoid loop() {\n\n    \/\/ I usually use arrays for data groups.  This group is the RFID information, rank and crew members.\n    int rows = 6;\n    int columns = 10;\n    String crew[rows][columns] = { { \"1\", \"1701796041\", \"Capt.\", \"Douglas\", \"Adams\", \"AA\", \"B3\", \"3C\", \"29\", \"Granted\"},\n                                   { \"2\", \"23715925245\", \"Lt.\", \"Ford\", \"Prefect\", \"ED\", \"9F\", \"FC\", \"2D\", \"Granted\" },\n                                   { \"3\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\" },\n                                   { \"4\", \"162814481\", \"Eng.\", \"Kieran\", \"McKenney\", \"A2\", \"51\", \"2C\", \"51\", \"Granted\" },\n                                   { \"5\", \"16711203167\", \"\", \"\", \"\", \"A7\", \"0B\", \"CB\", \"A7\", \"Denied\"},\n                                   { \"6\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\", \"\"} };\n\n\n\/\/DIP Switch for cabin light\nif (digitalRead(SwitchPin_23) == HIGH)\n      {\n        lcd_26.setCursor(0, 0);\n        lcd_26.print(\"Cabin Light is  ON\");\n        digitalWrite(RedLed_22, HIGH);\n\n      }\n\nif (digitalRead(SwitchPin_23) == LOW)\n      {\n        lcd_26.setCursor(0, 0);\n        lcd_26.print(\"Cabin Light is OFF\");\n        digitalWrite(RedLed_22, LOW);\n\n      }\n\n\/\/DIP Switch for opening front view\nif (digitalRead(SwitchPin_25) == HIGH)\n      {\n        digitalWrite(WhiteLed_24, HIGH);\n        lcd_26.setCursor(0, 1);\n        lcd_26.print(\"Front View    Open\");\n      }\n      else\n      {\n        digitalWrite(WhiteLed_24, LOW);\n        lcd_26.setCursor(0, 1);\n        lcd_26.print(\"Front View  Closed\");\n      }\n\n\/\/DIP Switch for opening rear view\nif (digitalRead(SwitchPin_27) == HIGH)\n      {\n        digitalWrite(BlueLed_26, HIGH);\n        lcd_26.setCursor(0, 2);\n        lcd_26.print(\"Rear View    Open\");\n      }\n      else\n      {\n        digitalWrite(BlueLed_26, LOW);\n        lcd_26.setCursor(0, 2);\n        lcd_26.print(\"Rear View  Closed\");\n      }\n\n  String UID = \"\"; \/\/first read\n  String SecondRead = \"\"; \/\/second read\n\n  \/\/ if new card is not present rerun loop\n  if (!mfrc522.PICC_IsNewCardPresent()){\n    return;\n  }\n\n  \/\/select card to read\n  if (!mfrc522.PICC_ReadCardSerial()){\n    return;\n  }\n\n\n  UID = readCardUID(UID); \/\/call the readCardUID function and store it in UID variable\n  for ( int i = 0; i <= 6; i++ ) {\n\n       RGBColorPicker(0,0,255);  \/\/Start RGB LED as Blue\n    if ( UID == crew[i][1]){\n        \/\/print to I2C LCD 0x27 UID on line 1\n        lcd_27.clear();                 \/\/ clear display\n        lcd_27.setCursor(0, 0);         \/\/ move cursor to   (0, 0)\n        lcd_27.print(\"UID: \");        \/\/ print message at (0, 0)\n        lcd_27.setCursor(5, 0);         \/\/ move cursor to   (5.0)\n        lcd_27.print(UID); \/\/ print message at (2, 1)\n\n        lcd_27.setCursor(0, 1);         \/\/ move cursor to   (0, 1)\n        lcd_27.print(crew[i][2]);        \/\/ print message at (0, 1)\n        lcd_27.print(\" \");\n        lcd_27.print(crew[i][3]);        \/\/ print message at (0, 1)\n        lcd_27.print(\" \");\n        lcd_27.print(crew[i][4]);\n\n        lcd_27.setCursor(0, 2);         \/\/ move cursor to   (0, 2)\n        lcd_27.print(\"Access: \");\n        lcd_27.setCursor(9, 2);         \/\/ move cursor to   (9, 2)\n        lcd_27.print(crew[i][9]);\n\n         \/\/ This code changes the RGB LED to colors depending on access.\n         \/\/ Red for Denied\n         \/\/ Green for Granted\n         \/\/ I created two If Else statements that do the same thing.  The active one is less code.\n         \/*\n         if (crew[i][9] == \"Granted\")\n            {\n            \/\/ RGBColorPicker(0,255,0); \/\/set color to green\n            RGBColorPicker(0,255,0);\n            delay(Dly);\n            }\n\n          else if (crew[i][9] == \"Denied\")\n            {\n            \/\/ RGBColorPicker(0,255,0); \/\/set color to red\n            RGBColorPicker(255,0,0);\n            delay(Dly);\n            }\n          *\/\n\n          if (crew[i][9] == \"Granted\")\n            {\n            \/\/ RGBColorPicker(0,255,0); \/\/set color to green\n            RGBColorPicker(0,255,0);\n            delay(Dly);\n            }\n\n          else {\n          \/\/ RGBColorPicker(0,255,0); \/\/set color to red\n            RGBColorPicker(255,0,0);\n            delay(Dly);\n          }\n\n\n\n    }\n\n\n    lcd_27.clear();   \/\/ clear display\n    \/\/Serial.println(\"Scan card for message: \"); \/\/scan card for secret message\n    \/\/delay(500);\n    \/\/revealMessage(SecondRead); \/\/calls revealMessage function, storing the second read of the UID into variable SecondRead\n  }   \/\/end of for loop\n\n    mfrc522.PICC_HaltA(); \/\/stops reading\n\n  lcd_27.setCursor(0, 0);         \/\/ move cursor to   (0, 0)\n  lcd_27.print(\"Scan: \"); \/\/end of loop -> prompts user to scan again\n  RGBColorPicker(0,0,255);\n}\n<\/pre>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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I found noise on the I2C bus that is caused by the grounding.\u00a0 I will place a 100uF capacitor across the VCC to Ground and I2C SDA to SCL buses.\u00a0 This will help clean up the noise and boost current to the circuit.\u00a0 <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"
Wow! The just opened.\u00a0 Standing outside is my crew.\u00a0 \u00a0I now have access to my spart parts lab. #include <Arduino.h> uncomment if using IDE other than Arduino. I have a Raspberry PI that I will be using with Arduino IDE. \/* array for crew 1 1701796041 Capt. Douglas Adams AA B3 3C 29 2 23715925245 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":968,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"custom","ocean_center_header_left_menu":"","ocean_custom_header_template":"7124","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","osh_disable_topbar_sticky":"default","osh_disable_header_sticky":"default","osh_sticky_header_style":"default","osh_sticky_header_effect":"","osh_custom_sticky_logo":0,"osh_custom_retina_sticky_logo":0,"osh_custom_sticky_logo_height":0,"osh_background_color":"","osh_links_color":"","osh_links_hover_color":"","osh_links_active_color":"","osh_links_bg_color":"","osh_links_hover_bg_color":"","osh_links_active_bg_color":"","osh_menu_social_links_color":"","osh_menu_social_hover_links_color":"","footnotes":""},"class_list":["post-6391","page","type-page","status-publish","hentry","entry"],"yoast_head":"\nDay 1: PB + LED - mc.scsiraidguru.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/mc.scsiraidguru.com\/index.php\/arduino\/30-days-in-space\/day-1-pb-led\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Day 1: PB + LED - mc.scsiraidguru.com\" \/>\n<meta property=\"og:description\" content=\"Wow! The just opened.\u00a0 Standing outside is my crew.\u00a0 \u00a0I now have access to my spart parts lab. #include <Arduino.h> uncomment if using IDE other than Arduino. I have a Raspberry PI that I will be using with Arduino IDE. \/* array for crew 1 1701796041 Capt. 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