Gravity: Analog Sound Level Meter
Analog sound level meter with low-noise microphone, outputting a voltage proportional to ambient dB level for plug-and-play Arduino noise measurement.
Pinout
- A1
Analog signal output from the sound level meter; DFRobot wiki pinout lists A as Analog Signal Output.
Type · AnalogVoltage · 0.6~2.6V output per DFRobot wiki - +2
Power VCC input for the Gravity analogue sound level meter.
Type · PowerVoltage · 3.3~5.0V input per DFRobot wiki - -3
Power ground/reference connection.
Type · GroundVoltage · 0V per DFRobot wiki
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| A | 1 | Analog | Analog signal output from the sound level meter; DFRobot wiki pinout lists A as Analog Signal Output. | 0.6~2.6V output per DFRobot wiki |
| + | 2 | Power | Power VCC input for the Gravity analogue sound level meter. | 3.3~5.0V input per DFRobot wiki |
| - | 3 | Ground | Power ground/reference connection. | 0V per DFRobot wiki |
Pin details
3 connections- A1
Analog signal output from the sound level meter; DFRobot wiki pinout lists A as Analog Signal Output.
AnalogVoltage · 0.6~2.6V output per DFRobot wiki - +2
Power VCC input for the Gravity analogue sound level meter.
PowerVoltage · 3.3~5.0V input per DFRobot wiki - -3
Power ground/reference connection.
GroundVoltage · 0V per DFRobot wiki
Start wiring
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Adafruit/Pimoroni list the electret microphone amplifier as a MAX4466-based board with 2.4–5 V DC supply, rail-to-rail analog output and …
Module pins: +, -, A. Schematik maps them to your board in the app.
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