{"id":8608169224,"title":"MCP23017 - I2C 16 Input\/Output Port Expander","handle":"mcp23017-i2c-16-input-output-port-expander","description":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eThe MCP23017 uses two i2c pins, and in exchange gives you 16 general purpose pins. Each of the 16 pins can be set to be input, output, or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eUse this chip from 2.7-5.5V (good for any 3.3V or 5V setup), and you can sink\/source up to 20mA from any of the I\/O pins so this will work for LEDs and such. \u003c\/span\u003e\u003cspan\u003e8 chips can share a single i2c bus. \u003c\/span\u003eThis board\/chip uses I2C 7-bit address between 0x20-0x27, selectable with jumpers.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e4 x 3 x 0.2 inches\u003c\/li\u003e\n\u003cli\u003e0.3 ounces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eHelpful Tools\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/mcp23017.pdf\" target=\"_blank\"\u003eData Sheet for MCP23017\u003c\/a\u003e\u003c\/p\u003e","published_at":"2017-01-30T19:22:00-05:00","created_at":"2017-01-30T19:22:39-05:00","vendor":"kjdElectronics","type":"","tags":[],"price":299,"price_min":299,"price_max":299,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":29778529800,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"IM-D3QK-G2BS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"MCP23017 - I2C 16 Input\/Output Port Expander","public_title":null,"options":["Default Title"],"price":299,"weight":0,"compare_at_price":null,"inventory_quantity":78,"inventory_management":"shopify","inventory_policy":"deny","barcode":null}],"images":["\/\/cdn.shopify.com\/s\/files\/1\/1749\/9663\/products\/51p3kAKeNcL._SL1000.jpg?v=1486959921","\/\/cdn.shopify.com\/s\/files\/1\/1749\/9663\/products\/71AYuaoJLVL._SL1500.jpg?v=1486959922","\/\/cdn.shopify.com\/s\/files\/1\/1749\/9663\/products\/71XkC8aN8lL._SL1500.jpg?v=1486959924","\/\/cdn.shopify.com\/s\/files\/1\/1749\/9663\/products\/81LzAPsB-WL._SL1500.jpg?v=1486959926"],"featured_image":"\/\/cdn.shopify.com\/s\/files\/1\/1749\/9663\/products\/51p3kAKeNcL._SL1000.jpg?v=1486959921","options":["Title"],"content":"\u003cp\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003eThe MCP23017 uses two i2c pins, and in exchange gives you 16 general purpose pins. Each of the 16 pins can be set to be input, output, or input with a pullup. There's even the ability to get an interrupt via an external pin when any of the inputs change so you don't have to keep polling the chip.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eUse this chip from 2.7-5.5V (good for any 3.3V or 5V setup), and you can sink\/source up to 20mA from any of the I\/O pins so this will work for LEDs and such. \u003c\/span\u003e\u003cspan\u003e8 chips can share a single i2c bus. \u003c\/span\u003eThis board\/chip uses I2C 7-bit address between 0x20-0x27, selectable with jumpers.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e4 x 3 x 0.2 inches\u003c\/li\u003e\n\u003cli\u003e0.3 ounces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eHelpful Tools\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/mcp23017.pdf\" target=\"_blank\"\u003eData Sheet for MCP23017\u003c\/a\u003e\u003c\/p\u003e"}

MCP23017 - I2C 16 Input/Output Port Expander

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