Cannot get piezospeaker to "beep" in activity three

neidpath

Hi

Need help.

Trying to run run the Start/Reset Indicator circuit and while the program runs and gives the expected messages, I cannot get the speaker to "beep"

I have checked the wiring and code and everything seems right.

Questions:

What setting should the on/off switch be set at - 1 or 2.?
Does it matter what colour the jumper wires are?
Could the batteries be going flat and affecting the "beep"?

Any help would be appreciated.

Regards

davejames

...what is the proposed frequency of the "beep"?

Mike Green

What board are you using? Is it a Board of Education? What activity #3 do you mean? Are you referring to "What's a Microcontroller?" If so, what page #?

"What setting ... ?" - Either switch setting should do. The difference between setting #1 and setting #2 is that power to the servo sockets is only on in position #2.

"Does it matter what colour ... ?" - No. The colour is for your benefit (and that of others who may look at your project) to indicate what signal is carried in the wire. Usually red indicates (+) or Vdd while black indicates (-) or Vss or ground (earth).

" ... batteries ... flat ... ?" - Maybe, but it's more likely that the wiring is incorrect.