SIM300 and PIC18LF4620

[mitsmepal@gmail.com]

Do we need vpltage level shifter between PIC18LF4620 and SIM300GSM.
PIC18LF4620 works on 3.3 volts whereas SIM300 works on 4.5 volts.

 

[masterleous]

Do we need vpltage level shifter between PIC18LF4620 and SIM300GSM.
PIC18LF4620 works on 3.3 volts whereas SIM300 works on 4.5 volts.

Voltage level shifter is not necessary for communication between above PIC and SIM300, you only need to put 300 ohm resistance in between them ( Tx and RX)