![]() ![]() ![]() Can I just plugin into an 'line in' where my 8 ohm speaker was and use a stereo? In general, how do I control speaker volume in the case where I am not outputting to my stereo? You need to add audio amplification to drive a 8 ohm speaker properly. More important any 8 ohm speaker no matter how small will damage an arduino output pin if connected directly, you need a series resistor of maybe 150 ohms or higher to protect the pin which in turn will consume most of the sound signal. RS sells many 8 ohm speakers but few will reproduce down to 20Hz faithfully, and even if a few could not without a proper designed speaker enclosure. Any advice here? a button for up and a button for down connected to the lcd, and then just read out that value for input into the tone generator? Is radio shack a good place for getting little knobs? OR, I could have digital buttons to control frequency and display the number on an LCD. If I have analog control, like a knob, I want to be able to display the actual frequency on an LCD. ![]() Can I get one of these at radio shack? I want to be able to produce tones as low as 20Hz. the toneMelody specifies an 8 ohm speaker. I was looking at the toneMelody example and it looks like I can output a given frequency pretty easily It looks like there is a sample program that can output tones rather easily, so I think I'm ok on this part. I've basically broken it down into the following pieces: I have some brief experience with arduino and amtels so I know some of what I will need but could use some advice in a few areas. I want to build an audible tone generator with knobs or buttons for selecting the frequency, and perhaps a display to show the current frequency. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |