{"product_id":"tca9548a-1-to-8-i2c-8-way-8ch-channel-multi-channel-expansion-board-iic-module-development-board","title":"TCA9548A 1-to-8 I2C 8-way 8CH Channel Multi-channel Expansion Board IIC Module Development Board","description":"\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003eFeature:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eYou just found the perfect I2C sensor, and you want to wire up two or three or more of them to your when you realize \"Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you cannot have two devices with the same address on the same SDA\/SCL pins!\" Are you out of luck? You would be, if you didn't have this ultra-cool CJMCU-9548 1-to-8 I2C multiplexer!\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eFinally, a way to get up to 8 same-address I2C devices hooked up to one microcontroller - this multiplexer acts as a gatekeeper, shuttling the com mands to the selected set of I2C pins with your com mand.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eUsing it is fairly straight-forward: the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77) and you simply write a single byte with the desired multiplexed output number to that port, and bam - any future I2C packets will get sent to that port. you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003eWe put this nice chip on for you so you can use it on a breadboard with capacitors, and pullups and pulldowns to make usage a snap. Some header is required and once soldered in you can plug it into a solderless-breadboard. The chip itself is 3V and 5V compliant so you can use it with any logic level.\u003c\/span\u003e\u003c\/div\u003e\u003cdiv\u003e \u003c\/div\u003e\u003cdiv\u003e\u003cspan style=\"font-size:14px;\"\u003e\u003cspan style=\"font-size:16px;\"\u003e\u003cstrong\u003ePackage includes:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e1 x Expansion Board\u003c\/span\u003e\u003c\/div\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/62\/91\/df80f300-5650-48d6-8121-c06c99633f7f.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/F2\/FC\/85d2a49e-f4ad-4565-9d6a-ec0acc72ead8.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/B8\/F8\/fc0fcdcc-95a2-4f24-b61b-08d114079120.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/BB\/EE\/280c5aa0-a132-4e99-b1dd-b274255a5319.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/96\/C4\/678e8094-50bc-4156-b216-3d30d259c7c9.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/9E\/1B\/5d23bb18-8415-4d46-a599-bb2e67fdc55c.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/60\/0F\/1ebb4c1e-4943-4b95-b364-fc4f2ec1b56e.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/51\/C8\/02b559b3-17da-4f64-b3e3-6795ee7964f2.jpeg\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/imgaz.staticbg.com\/images\/oaupload\/banggood\/images\/79\/03\/7b73342a-743b-4039-9756-1fe809646e7f.jpeg\"\u003e","brand":"Electronic Pro","offers":[{"title":"Default Title","offer_id":35551849250972,"sku":"1498811","price":210.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2787\/9162\/products\/edb82352-f501-4d33-9f0a-5768a9ea5def.jpg?v=1597576467","url":"https:\/\/electronic-pro-south-africa.myshopify.com\/products\/tca9548a-1-to-8-i2c-8-way-8ch-channel-multi-channel-expansion-board-iic-module-development-board","provider":"Electronic Pro ","version":"1.0","type":"link"}