Ping this
metron9
Posts: 1,100
Since I need to educate myself a bit on sound waves, op amps, and the like, I plan to see what I can do to make a distance sensor using:
a piezo earphone that came with my RS electronics kit
a piezo speaker
a LM324 op amp
and various scary things.
I know the Ping sensor parallax sells works fine
BUT
I like reinventing the wheel because I learn more...
a piezo earphone that came with my RS electronics kit
a piezo speaker
a LM324 op amp
and various scary things.
I know the Ping sensor parallax sells works fine
BUT
I like reinventing the wheel because I learn more...