5 pcs 3.3V-5V 4 Channel IIC I2C Logic Level Converter Bi-Directional Module
3,39 €
Can achieve UART, IIC, 1-wire, SPI and other bus signals 3V-5V level of the two-way conversion. BSCL then 3V system SCL. BSDA connected 3V system SDA. BGND then 3V system GND. To achieve direct serial 5V and 3.3V level communication.
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