The bi-directional logic level converters are generally required for I2C where the same line changes direction.
As thagrol says, for simple serial you can use a potential divider for external TX to Pi RX, and check the datasheet of your external device RX for the lowest voltage it will accept as a logic high.
As thagrol says, for simple serial you can use a potential divider for external TX to Pi RX, and check the datasheet of your external device RX for the lowest voltage it will accept as a logic high.
Statistics: Posted by 6by9 — Mon Jul 22, 2024 1:39 pm