h.v
Junior Member level 2
i need to connect a GPS operating on 3.3 v to an AVR mega32 with 5v supply via USART.
how is it possible to do that?
i think i need a level convertor!
here are my suggestions!!! are they able to do this?
GPS(3.3v) RX,TX =====>74ACT125(5v)======>MCU(5v) RX,TX
GPS(3.3v) RX,TX =====>MAX232(3.3v)=====>MAX232(5v)======>MCU(5v) RX,TX
GPS(3.3v) RX,TX =====>pull up resistor======>MCU(5v) RX,TX
i have not implement them yet! Because i am not sure if they would harm GPS or MCU!!!
how is it possible to do that?
i think i need a level convertor!
here are my suggestions!!! are they able to do this?
GPS(3.3v) RX,TX =====>74ACT125(5v)======>MCU(5v) RX,TX
GPS(3.3v) RX,TX =====>MAX232(3.3v)=====>MAX232(5v)======>MCU(5v) RX,TX
GPS(3.3v) RX,TX =====>pull up resistor======>MCU(5v) RX,TX
i have not implement them yet! Because i am not sure if they would harm GPS or MCU!!!