Miniature OTP Voice PCB Design
Budget: $10 – $30 USD
I’m building a small toy that plays a single prerecorded sound. To make this work I need a PCB design built around the OTP voice chip, a LiPo battery with its recharge module, and an on-board micro speaker. A simple momentary push-button should trigger playback; no other activation modes are required.
Space is at a premium: the entire populated board, battery, and speaker footprint must fit comfortably within roughly 3 cm × 3 cm x 4 cm.
Deliverables
• List of components
• Connection intructions
Please choose components easy to be found in the web, cheap and use as few as possible.
Space is at a premium: the entire populated board, battery, and speaker footprint must fit comfortably within roughly 3 cm × 3 cm x 4 cm.
Deliverables
• List of components
• Connection intructions
Please choose components easy to be found in the web, cheap and use as few as possible.