KSM091 Logic Level Converter 4路雙向 Raspberry PI I2C電位 邏輯電位轉換模組

4路雙向邏輯電位轉換模組 

Logic Level Converter Bi-Directional

5V / 3.3V 邏輯準位互轉 (最低可轉至1.8V)

通用任何數位訊號轉換，SPI，I2C， UART

適用Raspberry Pi 系列 Arduino DUE等IO 電位是3.3V的

Description:If you’ve ever tried to connect a 3.3V device to a 5V system, you know what a challenge it can be. The bi-directional logic level converter is a small device that safely steps down 5V signals to 3.3V AND steps up 3.3V to 5V at the same time. This level converter also works with 2.8V and 1.8V devices. What really separates this Logic level converter from our previous versions is that you can successfully set your high and low voltages and step up and down between them safely on the same channel. Each level converter has the capability of converting 4 pins on the high side to 4 pins on the low side with two inputs and two outputs provided for each side.

The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the ‘HV’ pin, low voltage (3.3V for example) to ‘LV’, and ground from the system to the ‘GND’ pin.