Logic Level Shifter 4-channel bidirectional - Pololu 2595
Product information:
This small logic level shifter has 4 bidirectional channels, which allows you to safely and easily communicate between two devices operating at different logic levels. It can convert signals from as low as 1.5V to as high as 18V and vice versa. Its four channels support most common bidirectional and unidirectional digital interfaces, including I2C, SPI and asynchronous TTL serial.
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