May 3, 2023
Description
Small diy budget speaker whick has decent appearance & quality. If 5v step up regulator is used, speaker has 2x3w rms power. I have one speaker connected to the left audio channel and the other to the right audio channel. Thus, when both are used together, they work as stereo. (Use the same identical bluetooth module to make stereo, or there may be delay differences in audio.) The list of parts I used in this project is:
*40mm speakers
*type-c charger board (tp4056)
*5v boost module
*18500 li-ion cell (18650 can also be used)
*bluetooth audio module
*pam8403 (with potantiometer)
*40x80mm passive radiator
*5 pin audio jack
Additional tools:
*proper adhesive for pasting speakers
*double-sided acrylic tape
*4x3.5mm countersunk head screws
*Washer for potantiometer mounting
License:
Creative Commons — Attribution — Noncommercial
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