Rudimentary 555 Buzzer Control

144

02:03:06

A simple 555 timer circuit that can control a buzzer. I made it piece by piece and then I outlined it on here. It is probably not the optimal design as it was very much trial and error, but if you have a buzzer and the components, you have a rough musical instrument that will play three notes. Note that the buttons pressed together create a different resistance which will produce a higher tone. I would LOVE feedback on any conventions that I have completely screwed up. I am very much an amateur learning as I go. But the circuit does work.

published 6 years ago

hurz

6 years ago

according to 555 specs resistor Ra is limited to 1kOhm, anyway you come 470 parallel 1k down to 320Ohm which is with Rb 470 and 4.7uF 222Hz which is very low ae tone. I think you need a redesign and lower the capacitor drastic by a factor if ten or more. As long the circuit is not finish i think its better to keep the standard topology and not move all the components around, the push buttons have to be replaced by switches anyway, cuz even we have multitouch smartphones we cant press both buttons at the same moment. right?

MJBay86

6 years ago

I appreciate the feedback. I will look into it. I built the circuit on an old Radio Shack learning board, so the push buttons are litterally pushbuttons. I just echoed that. I can totally understand your point though. Thank you so much!

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