Microcontroller › 8051 › 9v battery used in at89c51 › 9v battery used in at89c51
August 31, 2015 at 12:11 pm
#13236
Participant
Hi HIFZUL,
It is not good to connect 9v battery directly to at89c51 it may harm it, You have to use 7905 voltage regulator to reduce the voltage to 5 volt.