Name: Gravity: 386AMP Audio Amplifier Module
Brand: DFRobot
SKU: DFR0064

Logical pinout · physical placement not verified

VCC
Module power supply input. DFRobot wiki specification states power supply 4-12V for the DFR0064 386AMP audio amplifier module.
Type · PowerVoltage · 4-12V per DFRobot wiki specification
GND
Module ground / power return for the audio amplifier board.
Type · GroundVoltage · 0V reference
IN+
Positive audio input into the LM386 amplifier; schematic exposes the amplifier input as IN+.
Type · Signal
IN-
Negative / reference audio input into the LM386 amplifier; schematic exposes the amplifier input as IN-.
Type · Signal
Speaker +
Amplified speaker output terminal. DFRobot wiki says the amplified sound is passed to the speaker and specifies an 8 ohm, 0.5W speaker load.
Type · Signal
Speaker -
Speaker return terminal for the amplified output. DFRobot wiki specifies the external speaker load for the module.
Type · Ground

Pin	Type	Function	Voltage
VCC	Power	Module power supply input. DFRobot wiki specification states power supply 4-12V for the DFR0064 386AMP audio amplifier module.	4-12V per DFRobot wiki specification
GND	Ground	Module ground / power return for the audio amplifier board.	0V reference
IN+	Signal	Positive audio input into the LM386 amplifier; schematic exposes the amplifier input as IN+.
IN-	Signal	Negative / reference audio input into the LM386 amplifier; schematic exposes the amplifier input as IN-.
Speaker +	Signal	Amplified speaker output terminal. DFRobot wiki says the amplified sound is passed to the speaker and specifies an 8 ohm, 0.5W speaker load.
Speaker -	Ground	Speaker return terminal for the amplified output. DFRobot wiki specifies the external speaker load for the module.

Logical pinout · physical placement not verified

Pin details

6 connections

VCC
Module power supply input. DFRobot wiki specification states power supply 4-12V for the DFR0064 386AMP audio amplifier module.
PowerVoltage · 4-12V per DFRobot wiki specification
GND
Module ground / power return for the audio amplifier board.
GroundVoltage · 0V reference
IN+
Positive audio input into the LM386 amplifier; schematic exposes the amplifier input as IN+.
Signal
IN-
Negative / reference audio input into the LM386 amplifier; schematic exposes the amplifier input as IN-.
Signal
Speaker +
Amplified speaker output terminal. DFRobot wiki says the amplified sound is passed to the speaker and specifies an 8 ohm, 0.5W speaker load.
Signal
Speaker -
Speaker return terminal for the amplified output. DFRobot wiki specifies the external speaker load for the module.
Ground

Start wiring

I2S · I2C · Analog · 3.3 – 5 V · Breakout

Verify supply voltage and logic levels before powering up.

Module pins: VCC, GND, Speaker -, IN+, IN-, Speaker +. Schematik maps them to your board in the app.

Amplifiers

14 other options

MAX98357A and MAX98357 I2S class-D amps, PAM8403 and TPA2012 analog stereo amps, MAX9744 20W stereo amp, LM386 and PAM8302 mono amps, and discrete op-amp packs for signal-level work.

View all 14

Related groups

4 groups

Audio boards

Adafruit Audio FX boards and WAV Trigger for standalone playback, DFPlayer Pro and Gravity MP3 for MCU-scripted audio, EasyVR for speech recognition, Fermion/Gravity voice recorders, and Pi I2S DAC/codec boards.

Audio · Audio boards · 51 parts

Buzzers & speakers

Passive speakers from 1 W to 20 W (4–8 Ω), piezo buzzers active and passive, bone-conductor and surface transducers, and a BOSON buzzer module — all need a matching driver circuit or amplifier.

Audio · Buzzers & speakers · 23 parts

Microphones

MAX4466 and MAX9814 electret preamp breakouts for analog audio, I2S MEMS mics (ICS-43434, SPH0645LM4H, INMP441) for digital audio, PDM breakouts, ReSpeaker arrays for far-field pickup, and an LM386 sound detector.

Audio · Microphones · 17 parts

3D printing

DFRobot 1.75 mm PLA in 1 kg spools makes up the bulk of the group, in over 15 colors. Specialty options include PVA in both diameters, NinjaFlex flexible filament, Proto-Pasta conductive PLA, and wood-fill. OverLord printer spares and OverLord printers round out the hardware side.

Tools & prototyping · 3D printing · 53 parts