Bluetoot Speaker Boombox With HM-M18 Bluetooth Audio Module
by tonycheunghkg in Circuits > Audio
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Bluetoot Speaker Boombox With HM-M18 Bluetooth Audio Module
![011.jpg](/proxy/?url=https://content.instructables.com/FIW/AOJ9/KX1TZ1IC/FIWAOJ9KX1TZ1IC.jpg&filename=011.jpg)
In this tutorial I would like to show you how to make a simple Bluetooth Boombox with HM-M18 bluetooth module. HM-M18 is the cheapest bluetooth audio module with a nice feautres. Also this module is well known by the diy network.
Supplies
![BT_module1.jpg](/proxy/?url=https://content.instructables.com/FLG/0U58/KX1TZ0I0/FLG0U58KX1TZ0I0.jpg&filename=BT_module1.jpg)
• HM-M18 Bluetooth Module
• Amplifier Module PAM8403 2x3W
• 2x Speaker 3W 4Ohm
• Push/Push On/Off Switch
• 4mm MDF Sheet
• 5V 18650 Power UPS + 18650 Battery
• Eva Foam Coating
Prepare Enclosure
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You may cut MDF Plate with a utility knife and glue with double component adhesive. You can apply your own model in the dimensions you want.
Schematics & Wiring
![011.jpg](/proxy/?url=https://content.instructables.com/FGR/6A8E/KX1TZ0QD/FGR6A8EKX1TZ0QD.jpg&filename=011.jpg)
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Assembling to modules according to schematic diagram.
Coating With Eva Foam
![012.jpg](/proxy/?url=https://content.instructables.com/FW2/UJHF/KX1TZ0UF/FW2UJHFKX1TZ0UF.jpg&filename=012.jpg)
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Cut eva foam and glue on enclosure.
Sound Test
![How to make a Bluetooth Speaker, a Cheap Boombox](/proxy/?url=https://content.instructables.com/FOL/3ABZ/KX1TZ1F4/FOL3ABZKX1TZ1F4.jpg&filename=How to make a Bluetooth Speaker, a Cheap Boombox)