{"id":475,"date":"2021-06-23T23:44:43","date_gmt":"2021-06-23T23:44:43","guid":{"rendered":"https:\/\/mc.scsiraidguru.com\/?page_id=475"},"modified":"2024-03-03T15:30:12","modified_gmt":"2024-03-03T15:30:12","slug":"finding-your-i2c-addresses","status":"publish","type":"page","link":"https:\/\/mc.scsiraidguru.com\/index.php\/i2c\/finding-your-i2c-addresses\/","title":{"rendered":"Finding your I2C Addresses"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"475\" class=\"elementor elementor-475\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-869316d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"869316d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 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https:\/\/mlbxg5wzacc0.i.optimole.com\/cb:FyJ0.12d22\/w:1024\/h:576\/q:mauto\/f:best\/https:\/\/mc.scsiraidguru.com\/wp-content\/uploads\/2021\/08\/20210824_132725_rot.jpg 1024w, https:\/\/mlbxg5wzacc0.i.optimole.com\/cb:FyJ0.12d22\/w:768\/h:432\/q:mauto\/f:best\/https:\/\/mc.scsiraidguru.com\/wp-content\/uploads\/2021\/08\/20210824_132725_rot.jpg 768w, https:\/\/mlbxg5wzacc0.i.optimole.com\/cb:FyJ0.12d22\/w:1536\/h:864\/q:mauto\/f:best\/https:\/\/mc.scsiraidguru.com\/wp-content\/uploads\/2021\/08\/20210824_132725_rot.jpg 1536w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f5ffa00 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f5ffa00\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-37c8de5\" data-id=\"37c8de5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1f779b4 elementor-widget elementor-widget-text-editor\" data-id=\"1f779b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Below is the code you use to find I2C device addresses on an Arduino device.\u00a0\u00a0 On a Raspberry Pi you use I2CDevice -y 1.\u00a0\u00a0\u00a0 Raspberry Pi has two I2C buses.\u00a0\u00a0 Bus 0 is used for a HAT device on top of a Pi.\u00a0\u00a0 Bus 1 is used for I2C communication.\u00a0\u00a0 You will see in my setup I have a Bi Directional Logic Level chip to convert 3.3V to 5V devices.\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-fffd822 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fffd822\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0a096d9\" data-id=\"0a096d9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d232b67 elementor-widget elementor-widget-text-editor\" data-id=\"d232b67\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Scanning&#8230; <br \/>I2C Address is 0x05 ! <br \/>I2C Address is 0x06 ! <br \/>I2C Address is 0x07 ! <br \/>I2C Address is 0x09 ! <br \/>I2C Address is 0x0A ! <br \/>I2C Address is 0x0B ! <br \/>I2C Address is 0x0C ! <br \/>Done<time datetime=\"2021-08-27T23:26:03.843Z\" aria-label=\"08\/27\/2021\"><\/time><\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1fba52d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1fba52d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8c3dcc6\" data-id=\"8c3dcc6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dc3faf7 elementor-widget elementor-widget-text-editor\" data-id=\"dc3faf7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Raspberry Pi\u00a0 Terminal <br \/>sudo <br \/>I2Cdetect -y 1.\u00a0\u00a0\u00a0 <br \/>SMBus(1) is the I2C bus you communicate with.<\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-654f214 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"654f214\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6751349\" data-id=\"6751349\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ff4ca65 elementor-widget elementor-widget-text-editor\" data-id=\"ff4ca65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<pre class=\"ql-syntax\" spellcheck=\"false\">\/*I2C_scanner\n  This sketch tests standard 7-bit addresses.\n  Devices with higher bit address might not be seen properly.*\/\n  \n#include &lt;Wire.h&gt;\n\nvoid setup() {\n  Wire.begin();\n\n  Serial.begin(9600);\n  while (!Serial);\n  Serial.println(\"\\nI2C Scanner\");\n}\n\nvoid loop() {\n  byte error, address;\n  int nDevices;\n\n  Serial.println(\"Scanning...\");\n\n  nDevices = 0;\n  for (address = 1; address &lt; 127; address++ ) {\n    Wire.beginTransmission(address);\n    error = Wire.endTransmission();\n\n    if (error == 0) {\n      Serial.print(\"I2C device found at address 0x\");\n      if (address &lt; 16)\n        Serial.print(\"0\");\n      Serial.print(address, HEX);\n      Serial.println(\"  !\");\n\n      nDevices++;\n    }\n    else if (error == 4) {\n      Serial.print(\"Unknown error at address 0x\");\n      if (address &lt; 16)\n        Serial.print(\"0\");\n      Serial.println(address, HEX);\n    }\n  }\n  if (nDevices == 0)\n    Serial.println(\"No I2C devices found\\n\");\n  else\n    Serial.println(\"done\\n\");\n\n  delay(5000);\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bd7f986 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bd7f986\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1fd8cca\" data-id=\"1fd8cca\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ebff787 elementor-widget elementor-widget-text-editor\" data-id=\"ebff787\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<pre>sudo i2cdetect -y 1<br>     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f<br>00:                         -- -- -- -- -- -- -- --<br>10: -- -- -- -- 14 15 16 17 18 19 1a 1b 1c -- -- -- <br>20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br>30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br>40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br>50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br>60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- <br>70: -- -- -- -- -- -- -- -- <\/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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-add9af9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"add9af9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8563fed\" data-id=\"8563fed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\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":"<p>Below is the code you use to find I2C device addresses on an Arduino device.\u00a0\u00a0 On a Raspberry Pi you use I2CDevice -y 1.\u00a0\u00a0\u00a0 Raspberry Pi has two I2C buses.\u00a0\u00a0 Bus 0 is used for a HAT device on top of a Pi.\u00a0\u00a0 Bus 1 is used for I2C communication.\u00a0\u00a0 You will see in my [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":653,"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":"0","ocean_second_sidebar":"0","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":"0","ocean_custom_header_template":"7100","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":"0","ocean_menu_typo_font_family":"0","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":"0","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-475","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Finding your I2C Addresses -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mc.scsiraidguru.com\/index.php\/i2c\/finding-your-i2c-addresses\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Finding your I2C Addresses -\" \/>\n<meta property=\"og:description\" content=\"Below is the code you use to find I2C device addresses on an Arduino device.\u00a0\u00a0 On a Raspberry Pi you use I2CDevice -y 1.\u00a0\u00a0\u00a0 Raspberry Pi has two I2C buses.\u00a0\u00a0 Bus 0 is used for a HAT device on top of a Pi.\u00a0\u00a0 Bus 1 is used for I2C communication.\u00a0\u00a0 You will see in my [&hellip;]\" \/>\n<meta property=\"og:url\" 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