Sunday, 7 May 2017

microcontroller - how to convert UART voltage from 5v to 3.3v?



I have PIC18F4455 connected to spark core wifi chip. I send data from PIC18F4455 to the spark core by using UART. The problem is the output data of pic18f4455 equals to 5v, and the spark core accepts only 3.3V. My question is there any way to convert this data to 3.3v ( softwar in the PIC18F4455 or hardware) ?


Ali




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