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logic level conversion

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    UART Communication between GSM and GPS

    UART Communication between GSM and GPS I want to establish a UART Communication between GSM and GPS. The Supply Voltage of GPS is 3.3V. The Supply Voltage of GSM is 3.8V. The measured RX/TX Voltage Levels of GPS is 2.8V and 0V (for logic High and logic Low). The measured RX/TX Voltage Levels...

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