Hey Guys, In this tutorial I'm going to show you how to make a Bluetooth speaker, which has an inbuilt power bank. So you can also use this speaker to charge your mobile and other USB support devices. So let's get started :)
Parts List:
1) 3W speaker(2x) (alternative www.banggood.com/40mm-4Ohm-5W...)
2) Passive Radiator.(www.banggood.com/2Pcs-60x90MM...)
3) PAM 8403 Amplifier Module.(www.banggood.com/5pcs-PAM8403...)
4) Bluetooth Module.(www.amazon.in/Generic-Bluetoo...)
5) Micro USB battery Charging Module. (www.banggood.com/USB-Lithium-...)
6) 3V to 5V 1A Boost Converter. (www.banggood.com/3V-To-5V-1A-...)
7) 18650 Li-on Battery(2x) ( From Old Power Bank)
8) On/OFF Switch. (Local Store)
9) 4mm Acrylic Sheet. (Local Store)
Here's the link for the circuit diagram and more details
www.instructables.com/id/DIY-...
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5 июн 2018