{"id":17849,"date":"2022-07-28T12:11:15","date_gmt":"2022-07-28T05:11:15","guid":{"rendered":"https:\/\/www.makeriot2020.com\/?p=17849"},"modified":"2022-07-28T12:11:20","modified_gmt":"2022-07-28T05:11:20","slug":"i2c-io-card-for-esp-12e-i2c-base-card","status":"publish","type":"post","link":"https:\/\/www.makeriot2020.com\/index.php\/2022\/07\/28\/i2c-io-card-for-esp-12e-i2c-base-card\/","title":{"rendered":"I2C IO Card for ESP-12E I2C Base Card"},"content":{"rendered":"\n<p>The I2C IO Card for ESP-12E I2C Base Card is another expander card for the ESP-12E I2C Base Card Project. This PCB is an address-selectable I2C module with two relays and six (6) GPIO pins, all driven from a single PCF8574 running at 3v. The relays are optically isolated, and generous mains isolation cutouts were provided to reduce the possibility of mains voltage tracking. A jumper to enable\/disable the i2c pullup-resistors is also provided on the PCB. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"768\" height=\"1024\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-768x1024.jpg\" alt=\"\" class=\"wp-image-17853 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-768x1024.jpg 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-225x300.jpg 225w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-1152x1536.jpg 1152w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-1536x2048.jpg 1536w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-1200x1600.jpg 1200w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymoduleinbase-side-scaled.jpg 1920w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/1024;\" \/><\/figure>\n\n\n\n<p>The relays are powered from a single LDO regulator, accepting 12v DC from the 2x20pin female header on the bottom of the card. 3.3v and ground should also be applied to the card at the 2x20pin header. <br><br>It is worth mentioning that this circuit does not contain level converting circuitry and that the i2c bus thus runs at 3.3v to be compatible with ESP chips. <\/p>\n\n\n\n<p>It is possible to use the card with other processors if the appropriate level converters are used on the i2c bus.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"768\" height=\"1024\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-768x1024.jpg\" alt=\"\" class=\"wp-image-17857 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-768x1024.jpg 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-225x300.jpg 225w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-1152x1536.jpg 1152w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-1536x2048.jpg 1536w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-1200x1600.jpg 1200w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/relaymodule-scaled.jpg 1920w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/1024;\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">The Schematic<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"725\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_1-1-1024x725.png\" alt=\"\" class=\"wp-image-17924 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_1-1-1024x725.png 1024w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_1-1-300x212.png 300w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_1-1-768x544.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_1-1.png 1169w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/725;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"725\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_2-1-1024x725.png\" alt=\"\" class=\"wp-image-17925 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_2-1-1024x725.png 1024w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_2-1-300x212.png 300w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_2-1-768x544.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/Sheet_2-1.png 1169w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/725;\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"768\" height=\"1024\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-768x1024.jpg\" alt=\"\" class=\"wp-image-17851 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-768x1024.jpg 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-225x300.jpg 225w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-1152x1536.jpg 1152w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-1536x2048.jpg 1536w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-1200x1600.jpg 1200w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/07\/pwminbase-scaled.jpg 1920w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/1024;\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Manufacturing the PCB<\/h3>\n\n\n\n<h6 class=\"wp-block-heading\"><br>Over the past eight years, PCBWay has continuously upgraded their MANUFACTURING plants and equipment to meet higher quality requirements, and now THEY also provide <a href=\"https:\/\/www.pcbway.com\/oem\/?from=makeriot2020\" target=\"_blank\" rel=\"noreferrer noopener\">OEM service<\/a>s to build your products from ideas to mass production and access to the market.<\/h6>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-vimeo wp-block-embed-vimeo wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"PCBWay New Factory &amp; Main Service Overview\" data-src=\"https:\/\/player.vimeo.com\/video\/723212010?dnt=1&amp;app_id=122963\" width=\"840\" height=\"473\" frameborder=\"0\" allow=\"autoplay; fullscreen; picture-in-picture; clipboard-write; encrypted-media; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><br>The PCB for this project has been manufactured at <a href=\"https:\/\/www.pcbway.com\/?from=makeriot2022\" target=\"_blank\" rel=\"noreferrer noopener\">PCBWay.<\/a><br>Please consider supporting them if you would like your own copy of this PCB, or if you have any PCB of your own that you need to have manufactured.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/www.pcbway.com\/?from=makeriot2022\" target=\"_blank\" rel=\"noreferrer noopener\"><img decoding=\"async\" width=\"728\" height=\"280\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/03\/728x280.jpg\" alt=\"PCBWay\" class=\"wp-image-16555 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/03\/728x280.jpg 728w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/03\/728x280-300x115.jpg 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 728px; --smush-placeholder-aspect-ratio: 728\/280;\" \/><\/a><\/figure>\n\n\n\n<p>If you would like to have&nbsp;<a href=\"https:\/\/www.pcbway.com\/?from=makeriot2022\">PCBWAY<\/a>&nbsp;manufacture one of your own, designs, or even this particular PCB, you need to do the following\u2026<br>1) Click on this&nbsp;<a href=\"https:\/\/www.pcbway.com\/setinvite.aspx?inviteid=403795\" target=\"_blank\" rel=\"noreferrer noopener\">link<\/a><br>2) Create an account if you have not already got one of your own.<br>If you use the link above, you will also instantly receive a $5 USD coupon, which you can use on your first or any other order later. (Disclaimer: I will earn a small referral fee from PCBWay. This referral fee will not affect the cost of your order, nor will you pay any part thereof.)<br>3) Once you have gone to their website, and created an account, or login with your existing account,<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"386\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/Page1.png\" alt=\"\" class=\"wp-image-16928 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/Page1.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/Page1-300x151.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/386;\" \/><\/figure>\n\n\n\n<p>4) Click on PCB Instant Quote<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"386\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/page2.png\" alt=\"\" class=\"wp-image-16929 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page2.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page2-300x151.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/386;\" \/><\/figure>\n\n\n\n<p>5) If you do not have any very special requirements for your PCB, click on Quick-order PCB<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"385\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/page3.png\" alt=\"\" class=\"wp-image-16930 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page3.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page3-300x150.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/385;\" \/><\/figure>\n\n\n\n<p>6) Click on Add Gerber File, and select your Gerber file(s) from your computer. Most of your PCB details will now be automatically selected, leaving you to only select the solder mask and silk-screen colour, as well as to remove the order number or not. You can of course fine-tune everything exactly as you want as well.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"361\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/page4.png\" alt=\"\" class=\"wp-image-16931 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page4.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page4-300x141.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/361;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"384\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/page5.png\" alt=\"\" class=\"wp-image-16932 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page5.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page5-300x150.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/384;\" \/><\/figure>\n\n\n\n<p>7) You can also select whether you want an SMD stencil, or have the board assembled after manufacturing. Please note that the assembly service, as well as the cost of your components, ARE NOT included in the initial quoted price. ( The quote will update depending on what options you select ).<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"768\" height=\"385\" data-src=\"http:\/\/makeriot2020.com\/wp-content\/uploads\/2022\/04\/page6.png\" alt=\"\" class=\"wp-image-16933 lazyload\" data-srcset=\"https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page6.png 768w, https:\/\/www.makeriot2020.com\/wp-content\/uploads\/2022\/04\/page6-300x150.png 300w\" data-sizes=\"(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 768px; --smush-placeholder-aspect-ratio: 768\/385;\" \/><\/figure>\n\n\n\n<p>8) When you are happy with the options that you have selected, you can click on the Save to Cart Button. From here on, you can go to the top of the screen, click on Cart, make any payment(s) or use any coupons that you have in your account.<br><br>Then just sit back and wait for your new PCB to be delivered to your door via the shipping company that you have selected during checkout.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The I2C IO Card for ESP-12E I2C Base Card is another expander card for the ESP-12E I2C Base Card Project. This PCB is an address-selectable I2C module with two relays and six (6) GPIO pins, all driven from a single PCF8574 running at 3v. The relays are optically isolated, and generous mains isolation cutouts were &hellip; <a href=\"https:\/\/www.makeriot2020.com\/index.php\/2022\/07\/28\/i2c-io-card-for-esp-12e-i2c-base-card\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;I2C IO Card for ESP-12E I2C Base Card&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":17853,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[150,44,140,51,50,129],"tags":[45,81,67],"class_list":["post-17849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-breakout-board-modules","category-electronics","category-esp8266","category-i2c-devices","category-io-extender-outputs","category-pcbdesign","tag-electronics","tag-esp8266","tag-i2c"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/posts\/17849","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/comments?post=17849"}],"version-history":[{"count":0,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/posts\/17849\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/media\/17853"}],"wp:attachment":[{"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/media?parent=17849"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/categories?post=17849"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.makeriot2020.com\/index.php\/wp-json\/wp\/v2\/tags?post=17849"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}