

The logic level 4 channel allows you to interface devices which steps down
5V signals to 3.3V signals and step up 3.3V signals to 5V.
The converter has 4 inputs and outputs and can be used with I2C, SPI, UART, etc.
The board needs to be powered via two sources, 5V and 3.3V and your data lines are linked
via pins 1 to 4 on each side so an input on pin 1 will be converted to the lower or higher
output on the adjoining pin 1 this is repeated for pins 2 to 4.
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