Aliexpress 2.5$
Example code: https://learn.adafruit.com/adafruit-tca9548a-1-to-8-i2c-multiplexer-breakout/wiring-and-test
datasheet: http://www.ti.com/lit/ds/symlink/tca9548a.pdf
i2c port: 0x70 (default)
| A2 | A1 | A0 | addr | hex |
|---|---|---|---|---|
| GND | GND | GND | 112 | 70 |
| GND | GND | Vcc | 113 | 71 |
| GND | Vcc | GND | 114 | 72 |
| GND | Vcc | Vcc | 115 | 73 |
| Vcc | GND | GND | 116 | 74 |
| Vcc | GND | Vcc | 117 | 75 |
| Vcc | Vcc | GND | 118 | 76 |
| Vcc | Vcc | Vcc | 119 | 77 |
