
SendspinZero is an open-source, DIY Sendspin audio receiver for your amplifier that relies on off-the-shelf parts costing around $10 and a 3D printed enclosure. It integrates with Home Assistant for multi-room audio synchronization. It sounds good, but what is Sendspin exactly? It’s a royalty-free, open protocol developed by the Open Home Foundation for synchronized audio playback across multiple devices and rooms. Besides audio, it also supports screens for album art and control music, and sound-activated lights (coming soon feature). The protocol enables open-source products that compete against proprietary systems like Sonos, AirPlay, or Google Cast, and integrates nicely with the Music Assistant add-on for Home Assistant. Sendspin audio receiver key components: Waveshare ESP32-S3-Zero board with 2MB PSRAM (About $4-$6 on AliExpress, $12 on Amazon), ideally the version without pre-soldered headers Optional 1.54-inch LCD screen (About $5 on AliExpress) Optional 3-6V, 22mm bi-color button (About $2 to $3) Audio output options: […]
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