how to add buzzer in my nrf51dk board? please give me example. and tell me there is a builtin buzzer in dk?

[iqra]

i want to add alarm/ buzzer to my board. any reference about it? help me out please

[Susheel Nuguru]

There are many types of buzzer available, one that is powerful and needs external powering and some of them can be powered by 3.3v gpio outputs. It all depends on what your use case is. You need to use PWM library to get your buzzer output. There has been some discussion in this board but i am not sure if there are any working examples lying around.

[iqra]

ok thanks.. and u have idea about if i want to create a beep from my cell phone?

[awneil]

What do you mean by, "create a beep from my cell phone"?

• Do you mean to send a signal to the phone, and have the phone produce the beep?
• Or the cell phone send a signal to the nRF51, and have the nRF51 produce the beep?
• Or what?

[awneil]

As to whether or not there is a buzzer on the DK, a quick look at the schematics should answer that ...