I2C Qwiic 멀티플렉서 PCA9846 모듈
(Qwiic Mux PCA9846)
개요
- 본 제품은 I2C Qwiic 멀티플렉서 PCA9846 모듈 입니다.
- 같은 주소를 가진 I2C 장치를 같은 I2C 버스상에서 통신하고자 할 경우 사용이 가능한 제품입니다.
- 모듈에는 4개의 I2C 장치를 연결할 수 있으며, 나머지 두개의 커넥터를 통해 I2C 버스 및 다른 모듈과 연결이 가능합니다.
- 본 모듈은 8개까지 주소 설정이 가능하여 하나의 버스상에 총 32개 I2C 장치 까지 연결이 가능합니다.
특징
- 1" x 1" PCB with standoff mounting holes
- Main In and Out Qwiic connections
- Four multiplexed Qwiic ports (0-3)
- Configurable I2C address:
- 0x70 - 0x77 (unshifted)
- Default 0x70
- See Address Configuration for details
- Supports both 100kHz and 400kHz clock speeds
- 0.1"-spaced breakout holes for Power, I2C and Reset
- Power LED (configurable)
- Full set of 2.2K pull-up resistors (configurable)
- "Who Am I" (Device ID) identification
- Supply voltage:
- 1.65V (Min)
- 3.3V (Max)
- Note: Qwiic operates at 3.3V only
-
Do you have too many sensors with the same I2C address? Connect them to the SparkX PCA9846 Qwiic Mux to get them all talking on the same bus! This Qwiic Mux enables communication with multiple I2C devices that have the same address. This Qwiic Mux also has eight configurable addresses of its own, allowing for up to 32 I2C buses on a single connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system.
The PCA9846 Qwiic Mux is very similar to our classic 8-channel Qwiic Mux, except:
- It has four multiplexed Qwiic ports, plus Qwiic Main In and Out connections, on a super-cute 1" x 1" PCB
- The PCA9846 has a "Who Am I" (Device ID) product identification register which makes it much easier to detect in auto-detect DataLogger / OpenLog applications.
We've written a dedicated Arduino Library for the PCA9846 to get you up and running as qwiicly as possible!