{"product_id":"10pcs-i2c-8-bit-i-o-expander-module-pca8574ad-expansion-board-robotdyn-for-arduino-products-that-work-with-official-for-arduino-boards","title":"10pcs I2C 8-bit I\/O Expander Module PCA8574AD Expansion Board RobotDyn for Arduino - products that work with official for Arduino boards","description":"\u003cdiv id=\"specification\"\u003e\u003c\/div\u003e\u003cdiv id=\"specification_end\"\u003e\u003c\/div\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-weight: bolder;\"\u003eFeature:\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eIf you just don't have enough digital I\/O pins on your for Arduino to interface with all your sensors and controls, you might want to look at using the I2C bus to connect a few port expander chip PCA8574AD have 8 digital I\/O bits and can be set to addresses 0x38-0x3F respectively.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe I2C bus on the for Arduino uses SCL, SDA, a couple of pull up resistors and the Wire library.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eYou can connect more expander module. More 8 modules. Just change the address of each module.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eOn the backside of the board have instruction.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eIf you need more connecting modules, pls cut off the connection of pull-up resistor on the back side of board. \u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eOnly 1 board needs a pull-up resistor.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bolder;\"\u003ePackage includes:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e10 x Expansion Board\u003c\/span\u003e\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/82\/AF\/926690ff-2fbc-4903-8930-2d6cb5834ffc.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/D2\/4C\/e9b7d3a0-6110-44e0-a278-b0dc086130b8.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/4F\/38\/82a8b0cd-653c-4299-8b35-6d6b49a5f950.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/F0\/6E\/89de8262-ece3-49a5-83e0-81401f40cf0d.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/F7\/62\/2b3285e3-57dd-4f42-9e14-6a7e712f4457.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e","brand":"Electronic Pro","offers":[{"title":"Default Title","offer_id":35461595005084,"sku":"1705021","price":2163.99,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/926690ff-2fbc-4903-8930-2d6cb5834ffc.jpg?v=1597131272","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/10pcs-i2c-8-bit-i-o-expander-module-pca8574ad-expansion-board-robotdyn-for-arduino-products-that-work-with-official-for-arduino-boards","provider":"Electronic Pro ","version":"1.0","type":"link"}