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Detect Sound and Vibration for Smarter Projects
The MEMS Microphone Breakout INMP401 ADMP401 SparkFun is a ph sensor with analog output designed for sound detection, vibration alerts, and machine monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Frequency Range: 100 Hz – 15 kHz; Supply Voltage: 1.5–3.3V; Output: Analog.
Important: Water-quality sensors usually need calibration solutions and regular probe care. Probe condition and temperature can affect the reading.
Why you’ll love it
- Main chip: INMP401 / ADMP401 MEMS microphone
- Controller output: Analog
- Sensing range: 100 Hz – 15 kHz
- Power range: 1.5–3.3V
- Useful spec: MEMS (omnidirectional)
- Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
Compare with similar products
| Product | Sensor style | Standout |
|---|---|---|
| MEMS Microphone Breakout INMP401 ADMP401 SparkFun | pH sensor with analog output | Current item |
| MEMS Silicon Microphone Breakout SPW2430 Adafruit | pH sensor with analog output | analog output, breakout-board format |
| Electret Microphone Amplifier - MAX9814 with Auto Gain Control | pH sensor with analog output | analog output |
| USB Microphone for Raspberry Pi | pH sensor | general-purpose sensing |
What you can build
This sensor is a good fit for clap switches, knock locks, vibration alarms, sound level demos, and machine monitoring.
Starter bundles
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.
Recommended add-ons
Useful add-ons include an Arduino or ADC-capable board, jumper wires, and a stable power source, depending on how you plan to power, mount, and log the sensor.
Technical specifications
| Product | MEMS Microphone Breakout INMP401 ADMP401 SparkFun |
|---|---|
| Chip | INMP401 / ADMP401 MEMS microphone |
| Output | Analog |
| Frequency Range | 100 Hz – 15 kHz |
| Supply Voltage | 1.5–3.3V |
| Type | MEMS (omnidirectional) |
| Category | acoustic sound vibration sensors |
Wiring & usage notes
Connect power and ground, then read the sensor output with an analog-capable input or external ADC. Stable power and a clean ground help reduce noise. Water-quality sensors usually need calibration solutions and regular probe care. Probe condition and temperature can affect the reading.
What’s in the box
1 × MEMS Microphone Breakout INMP401 ADMP401 SparkFun
Frequently Asked Questions
What does the MEMS Microphone Breakout INMP401 ADMP401 SparkFun measure?
It is designed to measure sound level, audio activity, or optical fingerprint data.
Can I use it with Arduino, ESP32, or Raspberry Pi?
Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this Analog sensor?
This sensor gives an analog-style signal, so you read it with an ADC or an analog-capable input.
Does it need calibration?
Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
Is it good for prototyping?
Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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