3D render of densely packed components on a PCB.

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1. ɗ𐐩ʃƕρʋ (deshipu@fosstodon.org)'s status on Saturday, 26-Aug-2023 00:07:07 JST ɗ𐐩ʃƕρʋ

   in reply to

   Soo, after testing the sound, I have to conclude that... it works too well? I mean, it's much louder and clearer than with the transistor, and I can change the gain from 3dB to 15dB (at 15dB it starts crackling), and everything is great... as long as USB power is connected. When I switch to battery, any louder sound makes the backlight dim for a moment, and the loudest explosion sound makes the display reset and show the white screen of death.

   So I added a boost circuit. It's getting tight.