Buzzer Interfacing with P89V51RD2

Hi Guys

I tried to interface buzzer with P89V51RD2 but i'm not getting the output. I'm using the below circuit to beep buzzer. Need help

I actually ran into a problem similar to this while working on my current project. Make sure that there's enough current going into the base, otherwise you will not switch the transistor. Play around with the values of a the resistances.

try to remove that pull down resistor on the port pin side and see if that works. I agree with Raiden, base current is always an issue and you need to play with different values.

K thanks Raiden and Ajay i will try it and post the updates.

I got the Output It worked with 10K resistor without any problem. Actually the problem was with PIN. I changed the PIN and it s working absolutely fine Thanks Raiden and Ajay Sir

@prajwalsnh, great