{"id":8456824029421,"title":"TCA9548A I2C multiplexer","handle":"tca9548a-i2c-multiplexer","description":"\u003ch3\u003eTCA9548A I2C Multiplexer\u003c\/h3\u003e \u003cp id=\"b\"\u003eYou've just found the perfect I2C sensor and you're about to connect two or three or more of them to your Arduino when you realize, \"Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you can't 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 TCA9548A 1-to-8 I2C multiplexer. Finally, it is a way to get up to 8 I2C devices with the same address connected to a microcontroller - this multiplexer acts as a gatekeeper by transmitting the commands to the selected I2C pins with your command. Using the TCA9548A I2C Multiplexer is pretty straightforward: the multiplexer itself is at I2C address 0x70 (but can be set from 0x70 to 0x77) and you simply write a single byte with the desired multiplex output number to that port and bam - all future I2C packets will be sent to this port. Theoretically you could have 8 of these multiplexers on each of the 0x70-0x77 addresses to\u003c\/p\u003e \u003ch3\u003eProduct Features\u003c\/h3\u003e \u003cul class=\"a\"\u003e \u003cli\u003eEventually a possibility of up to 8 I2C To get devices with the same address connected to a microcontroller - this multiplexer acts as a gatekeeper that transmits the commands with your command to the selected set of I2C pins.\u003c\/li\u003e \u003cli\u003eUse is pretty simple: the multiplexer itself is located is on the I2C address 0x700 (but can be set from 0x70 to 0x77) and you simply write a single byte with the desired multiplex output number to that port, and bam - all future I2C packets are sent to that port. Theoretically, you could have 8 of these multiplexers on each of the 0x70-0x77 addresses to control 64 of the same I2C addressed portion.\u003c\/li\u003e \u003cli\u003eInternational products have separate terms, are sold from abroad and may differ from local products , including fit, age ratings, and language of product, labeling or instructions.\u003c\/li\u003e \u003c\/ul\u003e","published_at":"2024-03-11T18:26:09+11:00","created_at":"2024-03-11T18:26:17+11:00","vendor":"Adafruit","type":"Analog multiplexers","tags":["industryDE"],"price":16900,"price_min":16900,"price_max":16900,"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":45401614254317,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"de-B017C09ETS","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"TCA9548A I2C multiplexer","public_title":null,"options":["Default Title"],"price":16900,"weight":700,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/leoforward.com\/cdn\/shop\/products\/71-f48v-qxL.jpg?v=1710141977","\/\/leoforward.com\/cdn\/shop\/products\/81-mdw9A7bL.jpg?v=1710141977","\/\/leoforward.com\/cdn\/shop\/products\/81dSrNDQ2hL.jpg?v=1710141977","\/\/leoforward.com\/cdn\/shop\/products\/81ydiZHq3FL.jpg?v=1710141977","\/\/leoforward.com\/cdn\/shop\/products\/81qcJlI8HqL.jpg?v=1710141977"],"featured_image":"\/\/leoforward.com\/cdn\/shop\/products\/71-f48v-qxL.jpg?v=1710141977","options":["Title"],"media":[{"alt":" [AUSTRALIA] - TCA9548A I2C multiplexer","id":32609697431789,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1200,"width":1200,"src":"\/\/leoforward.com\/cdn\/shop\/products\/71-f48v-qxL.jpg?v=1710141977"},"aspect_ratio":1.0,"height":1200,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/71-f48v-qxL.jpg?v=1710141977","width":1200},{"alt":" [AUSTRALIA] - TCA9548A I2C multiplexer","id":32609697464557,"position":2,"preview_image":{"aspect_ratio":1.333,"height":900,"width":1200,"src":"\/\/leoforward.com\/cdn\/shop\/products\/81-mdw9A7bL.jpg?v=1710141977"},"aspect_ratio":1.333,"height":900,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/81-mdw9A7bL.jpg?v=1710141977","width":1200},{"alt":" [AUSTRALIA] - TCA9548A I2C multiplexer","id":32609697497325,"position":3,"preview_image":{"aspect_ratio":1.333,"height":900,"width":1200,"src":"\/\/leoforward.com\/cdn\/shop\/products\/81dSrNDQ2hL.jpg?v=1710141977"},"aspect_ratio":1.333,"height":900,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/81dSrNDQ2hL.jpg?v=1710141977","width":1200},{"alt":" [AUSTRALIA] - TCA9548A I2C multiplexer","id":32609697530093,"position":4,"preview_image":{"aspect_ratio":1.333,"height":900,"width":1200,"src":"\/\/leoforward.com\/cdn\/shop\/products\/81ydiZHq3FL.jpg?v=1710141977"},"aspect_ratio":1.333,"height":900,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/81ydiZHq3FL.jpg?v=1710141977","width":1200},{"alt":" [AUSTRALIA] - TCA9548A I2C multiplexer","id":32609697562861,"position":5,"preview_image":{"aspect_ratio":1.333,"height":900,"width":1200,"src":"\/\/leoforward.com\/cdn\/shop\/products\/81qcJlI8HqL.jpg?v=1710141977"},"aspect_ratio":1.333,"height":900,"media_type":"image","src":"\/\/leoforward.com\/cdn\/shop\/products\/81qcJlI8HqL.jpg?v=1710141977","width":1200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eTCA9548A I2C Multiplexer\u003c\/h3\u003e \u003cp id=\"b\"\u003eYou've just found the perfect I2C sensor and you're about to connect two or three or more of them to your Arduino when you realize, \"Uh oh, this chip has a fixed I2C address, and from what I know about I2C, you can't 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 TCA9548A 1-to-8 I2C multiplexer. Finally, it is a way to get up to 8 I2C devices with the same address connected to a microcontroller - this multiplexer acts as a gatekeeper by transmitting the commands to the selected I2C pins with your command. Using the TCA9548A I2C Multiplexer is pretty straightforward: the multiplexer itself is at I2C address 0x70 (but can be set from 0x70 to 0x77) and you simply write a single byte with the desired multiplex output number to that port and bam - all future I2C packets will be sent to this port. Theoretically you could have 8 of these multiplexers on each of the 0x70-0x77 addresses to\u003c\/p\u003e \u003ch3\u003eProduct Features\u003c\/h3\u003e \u003cul class=\"a\"\u003e \u003cli\u003eEventually a possibility of up to 8 I2C To get devices with the same address connected to a microcontroller - this multiplexer acts as a gatekeeper that transmits the commands with your command to the selected set of I2C pins.\u003c\/li\u003e \u003cli\u003eUse is pretty simple: the multiplexer itself is located is on the I2C address 0x700 (but can be set from 0x70 to 0x77) and you simply write a single byte with the desired multiplex output number to that port, and bam - all future I2C packets are sent to that port. Theoretically, you could have 8 of these multiplexers on each of the 0x70-0x77 addresses to control 64 of the same I2C addressed portion.\u003c\/li\u003e \u003cli\u003eInternational products have separate terms, are sold from abroad and may differ from local products , including fit, age ratings, and language of product, labeling or instructions.\u003c\/li\u003e \u003c\/ul\u003e"}