This tutorial will guide you through how to build your own wireless and/or wired headphones with ambient microphones. We start with some off-the-shelf headphones intended for use while lawn mowing, and then hack in some new electronics to allow wireless (BT), auxiliary 3.
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We’re suckers for alternative data transmission methods, and [Georgi Gerganov]’s ggwave made us smile. At its core, it’s doing what the phone modems of old used to do – sending data encoded as different audio tones. But GGwave does this with sophistication!
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PocketRadio is an ATtiny402/412 controlled FM radio with RDS (RDA5807MP), an integrated audio amplifier (TC8871 or XPT8871), a LiPo battery charger (MCP73831 or TP4054), an OLED display (SSD1306) and three buttons. You can directly connect a protected 3.
from Pocket
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