Quick

  • HOME

Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer[5626]

Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer
  • Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer[5626]

    보여지는 사진은 제품을 대표적으로 묘사하는 사진입니다. 정확한 규격은 제품의 데이터시트에서 확인하셔야 합니다.

      • 해외
    • 소비자가
      13,600
    • (vat 포함)
      14,960원
    • 상품코드
      P013973618
    • 제 조 사
      Adafruit
    • 마일리지
      60 IC
      마일리지 INFO

      마일리지 적립금은 상품 구매시 적립되는 형태가 아닌, 프로모 션 진행 시 혜택으로 적립되는 형태입니다. 자세한 관 련 내용을 보시려면 마이페이지>마일리지 메뉴에서 확 인하세요!

    • 배송기간
      7~10일
    • 재고위치
      해외 재고
    • 최소구매수량
      1개
    • 수량선택
    총 합계 13,600 원 (vat 별도)
    14,960 원 (vat 포함)
    연구비카드사용가능
  • 이 상품의 상품코드는 P013973618 입니다.

    Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer[5626]

    You just found the perfect I2C sensor, available in a handy chainable Qwiic, or STEMMA QT package, and you want to wire up two or three or more of them to your microcontroller 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 Adafruit PCA9548 8 Channel STEMMA QT / Qwiic I2C Multiplexer!

    Finally, a way to get up to 8 same-address I2C devices hooked up to one microcontroller - this multiplexer acts as a gatekeeper, shuttling the commands to the selected I2C port with your command.

    In case you're wondering why this uses the PCA9548A not the TCA9548A, the PCA9548 is the 'fraternal twin sister' of the TCA9548 but is easier to get during the great chip shortage of 2022. It works exactly the same, just can't go down to 1.8V power which is OK because QT boards are 3V or 5V only anyways. You can still use any example code or library for the TCA9548

    Using it is fairly straight-forward: the multiplexer itself is on I2C address 0x70 (but can be adjusted from 0x70 to 0x77 using jumpers on the back) 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. In theory, you could have 8 of these multiplexers on each of 0x70-0x77 addresses in order to control 64 of the same-I2C-addressed-part.

    The Adafruit STEMMA QT / Qwiic PCA9548A Mux Breakout - 8 Channel has eight JST SH 1mm connectors in two rows of four, all with the power, ground, and SDA/SCL pins connected. There's one port at the end that connects to your I2C controller (there are also breadboard breakout pins if you need them). Use this breakout to add as many I2C devices to the bus as you need. Complete with mounting holes so the board can be added to any system. A small power LED lets you know that the hub board has connectivity.

    There's even an onboard 3.3V 500mA regulator, so if you're using this with a 5V microcontroler like an Arduino 328-compatible, you can level shift all the QT ports to have 3V power and logic level.

    Of course, because STEMMA QT is Qwiic compatible, it will work with any and all STEMMA QT or Qwiic boards and parts we have in the Adafruit shop.

    Comes with only the assembled PCB, no cables or sensors included (we have tons available though!)

    https://www.youtube.com/embed/XDM6b8yL23Y?start=192

    https://www.youtube.com/embed/6GXRRuFuFy0

     

확대보기

문의하기

Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer[5626]

문의유형
제목
내용
답변알림
      • @
      • -
      • -

공유하기

대량구매 문의

상품명 Adafruit PCA9548 8-Channel STEMMA QT / Qwiic I2C Multiplexer[5626]
성명
업체명
연락처
이메일
    • @
수량
유의사항
  • ※ 대량 구매문의를 해주셔서 감사합니다.
  • 문의가 접수 되는대로 빠른 시간내에 연락을 드리도록 하겠습니다.

신규 프로젝트

프로젝트 추가

결제 및 주문

  • 공정거래위원회
  • 홈택스
  • 연구비결제
  • 이노비즈
  • 마우저
  • 에스크로
  • 기업금융

공지사항 목록