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The LM386 is an audio amplifier module featuring onboard terminal blocks to connect to a speaker and a potentiometer to adjust the volume
Output ripple: 20mV (MAX)
When charging
Input Power : + 5
Bluetooth 5
2x 18650 Battery holder/case plastic for 3.7V Li-Ion battery ( with DC Plug / without DC Plug) Test Circuit The LM386 is an audioThis is a Black Plastic Storage Box Case holder for battery 2 X 18650 Cell Box, with DC Power Plug. The 5 inch cable is terminated with a standard 5. 52. 1mm, centre positive barrel jack connector. The connector mates with the barrel jack on the Arduino (among a number of other products) allowing you to easily make your project battery powered. The case box can keep your batteries organized and protected. The holder case is designed with leads for
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