1. This product is not a power conversion module 2. 5V power supply must be connected in order to work properly 3. Four MOS tube to achieve level four 3V and 5V bidirectional conversion 4. The power input with anti-reverse protection, integrated 3.3V LDO, and provides external current ( not greater than 150mA ) 5. With power indicator 6. Can realize signals bidirectional conversion such as UART, IIC, SPI
