Compact Voice-Command PCB Design
Budget: $250 – $750 USD
I’m building a tiny, low-profile board—roughly Apple AirTag size—that understands basic voice commands, confirms them with short beeps, and runs entirely from a single CR2032 coin cell.
Here’s what I need:
• A complete schematic and PCB layout that integrates a low-power voice-recognition IC, an electret or MEMS microphone, and a miniature speaker or ringer tuned for clear beep tones.
• Power architecture that keeps quiescent current ultra-low so the CR2032 lasts months, with attention to battery-friendly regulators or boost circuitry if the audio path needs higher voltage.
• Component selection guidance; I’m flexible on the exact chipset and audio transducer as long as the overall package stays compact and readily sourced.
• No wireless connectivity is required—this is an entirely self-contained device—so the design can stay focused on size and efficiency.
• Board dimensions and component heights must stay within an AirTag-like envelope; creative stacking or flex-rigid ideas are welcome if it helps hit that profile.
Deliverables
1. Editable schematic (KiCad, Altium, or Eagle)
2. PCB files and Gerbers ready for fabrication
3. BOM with part numbers, datasheet links, and estimated unit pricing
4. Basic firmware example or application notes showing how to program sample voice commands and trigger the beep tones
5. Brief power-budget report confirming projected battery life under typical use
I’m ready to iterate quickly, so please outline any lead times you anticipate for prototype spins or component availability when you respond.
I will be submitting the design to a manufacturer for a quote and layout inspection. They will also assist with the review and approval process.
Here’s what I need:
• A complete schematic and PCB layout that integrates a low-power voice-recognition IC, an electret or MEMS microphone, and a miniature speaker or ringer tuned for clear beep tones.
• Power architecture that keeps quiescent current ultra-low so the CR2032 lasts months, with attention to battery-friendly regulators or boost circuitry if the audio path needs higher voltage.
• Component selection guidance; I’m flexible on the exact chipset and audio transducer as long as the overall package stays compact and readily sourced.
• No wireless connectivity is required—this is an entirely self-contained device—so the design can stay focused on size and efficiency.
• Board dimensions and component heights must stay within an AirTag-like envelope; creative stacking or flex-rigid ideas are welcome if it helps hit that profile.
Deliverables
1. Editable schematic (KiCad, Altium, or Eagle)
2. PCB files and Gerbers ready for fabrication
3. BOM with part numbers, datasheet links, and estimated unit pricing
4. Basic firmware example or application notes showing how to program sample voice commands and trigger the beep tones
5. Brief power-budget report confirming projected battery life under typical use
I’m ready to iterate quickly, so please outline any lead times you anticipate for prototype spins or component availability when you respond.
I will be submitting the design to a manufacturer for a quote and layout inspection. They will also assist with the review and approval process.