Diy Portable Aux Speaker

Componenets

pam8403

2* speakers

3.7v battery

tp4056 charging module

switch

Step 2: Features of Pam8403

• Dual-channel stereo output
• 3 w + 3 w power Class D
• Works with 2.5V-5v power supply
• High amplification efficiency 85%
• can directly drive 4 Ω/8 Ω small speakers
• Good sound quality & no noise
• Can use computer USB power supply directly
• Small Size, 1.85 x 2.11 cm

Step 3: Circuit Diagram

Step 4: Connections

connect aux to input

connect speakers to outputs

connect the battery to supply pins

connect charger module parallel with the battery

watch the making video

Step 5: Case Making

I used 5 mm multi wood you can use the same or you can 3d print

A Real PCB Manufacturer

NextPCB is one of the most experienced and the largest PCB manufacturing company, which is located in Shenzhen, China. The Company is providing high-quality printed circuit boards at the best available prices which can be delivered across the globe. Established in 2004, the company owns Three large factories expanded over where PCBs are manufactured and assembled. One of the factories is for PCB prototype, while PCB mass production is done in another factory.

Step 6: Happy Making

watch the video for full details

if you have any doubts please comment it below