First of all i want to say i think your glasses are awesome 😀
I was looking for something like this to make, did you make the schematic with softcad eagle if so can i have he schematic?
And what kind of thing is M1?
Hi, thanks for writing.
The schematic is posted on the blog. Giving you the schematic file wouldn't really help because I use my own library of parts.
M1 is the microphone. -44dB 2.2k electret.
tnx i have almost created it in cadsoft but i have some questions.
-vcc and vcc/2 are just nets?
-and what kind of power do you use 9v?
-and what kind of device is in front of the triac's?
-and in the schematic there stand common terminal for u4d and u5d but there are no u4d and u5d.
-and for what are those 3 lines in the top left corner?
-yep, just off-page indicators to make it the schematic a little neater.
-LM339 as indicated on the schematic
-U4D and U5D are the D gate of U4 and U5 (see UA-C on the right?)
-Read the blog post and it explains.
Also, I've added a bill of materials to the bottom of the page. Might help you.