> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Fermion: MEMS Microphone Module

**Type:** Product page · **SKU:** SEN0487 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/fermion-mems-microphone-module.html ([markdown](https://core-electronics.com.au/fermion-mems-microphone-module.html.md))

This tiny MEMS microphone has an amplifier gain of 66. When there is no sound detected, it outputs voltage around 0.66\*VCC. When speaking, you can easily get the...

## Pricing

- **Price:** $4.80 (inc GST) — $4.36 AUD, exc GST
- **Quantity discounts:** 6+ $4.15 (exc GST) · 12+ $3.97 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 15 today, and up to 500 more in 8–12 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0487:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0487:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This tiny MEMS microphone has an amplifier gain of 66. When there is no sound detected, it outputs voltage around 1.5V. When speaking, you can easily get the acoustic waveform by ADC sampling. The module can be used on all kinds of 3.3V/5V main controllers.

**![](https://core-electronics.com.au/attachments/localcontent/Connection-Diagram_307543537df.png)**

**Connection Diagram**

###  Specification

5. Signal Type: Analog signal
6. Power Supply: 3.3V/5V
7. Directivity: All-round
8. Sensitivity: -42dB
9. S/N Ratio: 59dBA
10. Frequency Range: 100Hz~8KHz
11. Dimension: 18\*12.5 mm/ 0.71\*0.49”
###  Documents

13. [Product wiki](https://wiki.dfrobot.com/Fermion_MEMS_Microphone_Sensor_SKU_SEN0487)
###  Parts List

15. Fermion: MEMS Microphone Module ×1
16. 2.54-3P Black Single Row Pin Header ×1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0487.jpg)