{"product_id":"5pcs-i2c-8-bit-i-o-expander-module-pca8574ad-expansion-board-robotdyn-for-arduino-products-that-work-with-official-for-arduino-boards","title":"5pcs 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\u003e5 x Expansion Board\u003c\/span\u003e\u003c\/div\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/0D\/77\/7536ecb9-8688-4288-81c3-eb592ca8273a.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/EA\/29\/1dbc9597-7abf-4ac2-884d-2bb8899a392e.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/F7\/B6\/51fc04af-ff81-46d5-9388-56df16be44ed.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/C1\/82\/a85c4c4b-8de7-48a4-960c-d1102962075c.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"http:\/\/imgmgr.banggood.com\/images\/oaupload\/banggood\/images\/EF\/D6\/7eeb4e07-85b0-484c-832b-3fdb44f4361b.jpeg\" style=\"width:1000px\"\u003e\u003c\/p\u003e","brand":"Electronic Pro","offers":[{"title":"Default Title","offer_id":35461594939548,"sku":"1705022","price":1099.29,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/7536ecb9-8688-4288-81c3-eb592ca8273a.jpg?v=1597131271","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/5pcs-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"}