On Sat, Dec 28, 2024 at 04:06 PM, <soundwichartist@...> wrote:
Thank you so much for this, I had come across MEMS before but was honestly unsure about the best practices to use them. I assume its in best practice to create a PCB for them? I know for sure that would be the best case scenario for 3d printing a case for it, but is there anything else I should know about these types of microphones? I realize there is one ready and make on mic boosters, but its not really the mic shape im going for in my working prototype, so i'm definitely up for learning a little more about PCB design with an experienced friend I have.
The basic micboosters capsule is very tiny and (almost) impossible to work with by hand!?
However, if you're going for a PCB you will need to create a surface mount style board, to accomodate that capsule.... That's quite brave for a first try, IMHO!
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One thing I have discovered (the hard way!) is that MEMs capsules really don't like excessive voltage applied to them..... Keep it below 3 volts, to be safe.?
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I've use a MEMs capsule in the prototype boom pole mounted? mic that? I used this last summer - in conjunction with my Zoom F3 recorder - to record bat echo location calls.? That uses the Micbooster's PCB mounted capsule, fitted into a section of 32mm plastic waste pipe, to help keep the weight down on the end of the boom pole.
Some preliminary notes on that project here: https://www.jp137.com/lts/MEMS.Ultrasonic.Interface.pdf
