ControlEverything.com manufacturers hundreds of plug-and-play hardware devices for IoT applications such as Current Monitors, FET Drivers & Relay Controllers and much more!
For best results use their I2C boards, which are chainable, but be sure to use the Power Level Shifter (see "Wiring" section) to ensure 5V supply.
UX2-I2C – 3 x I2C, 1 x UART, 1 x SPI:
UX2-ALT – 2 x I2C, 2 x GPIO, 1 x UART, 1 x SPI:
UX2-GPIO – 1 x I2C, 4 x GPIO, 1 x UART, 1 x SPI:
UX2-1IS – 1 x I2C, 1 x 1-WIRE, 1 x INTERRUPT, 1 x UART, 1 x SPI, 1 x SOUND-WIRE:
First, make sure you have a Power Level Shifter beween each UX2 I2C bus and the ControlEverything modules:
Then wire everything up in the usual I2C way...
| UX2 | Control Everything |
|---|---|
 |
Vin, Vcc |
 |
GND |
 |
SDA |
 |
SCL |
I2C devices can be chained in a linear topology as shown above.
ControlEverything provide Hubs which allow more complex topologies.
TBC