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High gain audio amplifier based on the LM386 integrated circuit.
See description for more details about the product.
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1. Power up the audio amplifier.
The module is powered with a voltage between 5 V and 12 V. The supply pins are marked with VCC and GND. On the module are marked 2 pins with GND, but it does not matter which pin you connect the table.
2. Connect a speaker to the mode.
On the opposite side of the module, there are two screw terminals useful for connecting a speaker with a 8Ω impedance.
3. Connect an audio signal source.
The audio input is made through the pins marked with IN and GND. If the audio signal and the power supply come from a common source (for example: an Arduino development board), you need to connect a single mesh wire (GND).
Example of use with an Arduino development board
The module connects to the development board:
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