Hi i am a new member to this forum and would like some suggestions/help from some people who know better.
My project is as follows:
I am trying to build a VU Meter, a very large one. I was planing on using a couple of LM 3915 to drive all of the LEDS, about 60 in total. I was thinking about using two PC power supplies because they would convert AC to DC. One of the power supplies would power the LED's and one of them would supply power to the LM3915 chips. I am not sure of a circuit for which to do this. i have read through the LM3915 datasheet, and i am unsure of how exactly it would interface with an Electret condenser microphones. In the end i want this meter to read how loud it is in a room... i plan on building it right into a table. Any suggestions/advice anyone can give would be a huge help, i dont want to blow anything up. Thanks again.
My project is as follows:
I am trying to build a VU Meter, a very large one. I was planing on using a couple of LM 3915 to drive all of the LEDS, about 60 in total. I was thinking about using two PC power supplies because they would convert AC to DC. One of the power supplies would power the LED's and one of them would supply power to the LM3915 chips. I am not sure of a circuit for which to do this. i have read through the LM3915 datasheet, and i am unsure of how exactly it would interface with an Electret condenser microphones. In the end i want this meter to read how loud it is in a room... i plan on building it right into a table. Any suggestions/advice anyone can give would be a huge help, i dont want to blow anything up. Thanks again.