10 pz INMP441 modulo microfono omnidirezionale interfaccia MEMS I2S per ESP-32

EUR 32,01 Compralo Subito o Proposta d'acquisto, EUR 4,87 Spedizione, 30-Giorno Restituzione, Garanzia cliente eBay
Venditore: etecstore186 ✉️ (650) 98.6%, Luogo in cui si trova l'oggetto: ShenZhen, CN, Spedizione verso: WORLDWIDE, Numero oggetto: 156117011091 10 pz INMP441 modulo microfono omnidirezionale interfaccia MEMS I2S per ESP-32.

10Pcs INMP441 Omnidirectional Microphone Module MEMS I2S Interface for ESP-32 Store Categories

Store Categories Product introduction:
The INMP441 is a high performance, low power, digital output, omnidirectional MEMS microphone with bottom port. The
The complete INMP441 solution consists of a MEMS sensor, signal conditioning, analog to digital converter, anti-aliasing filter, power management and industry standard 24-bit I2S interface. The I2S interface allows the INMP441 to be directly connected to digital processors such as DSPs and microcontrollers without the need for an audio codec for use in the system. The INMP441 has a high signal-to-noise ratio and is an excellent choice for near field applications. The INMP441 has a flat wideband frequency response that results in high definition of natural sound.

Product Features:
1. Digital I2S interface with high precision 24-bit data
2. High signal to noise ratio is 61 dBA
3. High sensitivity - 26 dBFS
4. Stable frequency response from 60 Hz to 15 kHz
5. Low power consumption: low current consumption 1.4 mA
6. High PSR: -75 dBFS
Interface definition:
SCK: Serial data clock for I2S interface
WS: Serial data word selection for I2S interface
L/R: Left/Right channel selection.
When set to low, the microphone outputs a signal on the left channel of the I2S frame.
When set to high level, the microphone outputs signals on the right channel
SD: Serial data output of the I2S interface.
VCC: Input power, 1.8V to 3.3V.
GND: power ground

This product provides tutorials for using ESP32 modules with I2S functionality.
Connect to ESP32:
INMP441 ESP32
SCK >> GPIO14
SD >> GPIO32
WS >> GPIO15
L/R >> GND
GND >> GND
VDD >> VDD3.3
What is the difference between an omnidirectional microphone and a unidirectional microphone:
First of all, I understand that the sound divergence is all-round. One person speaks and diverge in the air.
As for how far it can pass, it depends on many factors.
1.directional microphone, the general pickup radius is very small, 30 cm is a big one, single use, put it on the mouth, the sound quality is very good, because it is not picked up again.
The shape is generally goose neck wheat, a rod, a curved rod, to your mouth, directivity, just listen to your voice.
With a single-point microphone, the sensitivity is limited to a certain range. Sensitivity is too high, causing sharp whistling, etc., involving many other devices
As for why not make a big pickup radius, there is a reason. Later
2.omnidirectional microphone, the general pickup radius is very large, one meter two meters three meters five meters have, compared with ten centimeters, this level is very different, it is not just picking a person\'s voice, but Multiple people, five six, seven eight or even ten.
Omnidirectional microphones are highly sensitive,
The omnidirectional microphone pickup radius is too large, and it will also pick up more ambient noise, so the sound quality is not as good as the single-point microphone, unless you do a good noise reduction. There is definitely a difference between collective use and single-person service.
But omnidirectional wheat has a benefit, the wiring is simple, not one by one. Suitable for small meetings, ad hoc meetings, some remote discussions, remote operations.
3.single-point wheat generally supports local amplification,
Omnidirectional microphones generally do not support local amplification. It should be noted that because of such high sensitivity, the local amplification whistling is very scary, and the current technology is difficult to deal with.   Package Included: 10x  INMP441 Omnidirectional Microphone Module MEMS I2S Interface for ESP32 SHIPPING

1.We only ship to the confirmed address provided by eBay. please make sure your ebay address is 100% matches the address you would like us to ship to. If not, please let us know before we sent you the package, or we will not be responsible for any loss. hope you could understand.

2.Orders will be processed instantly and dispatched within 1-2 business days except hoilday, so we do NOT accept any email/message note after you place orders.

3.Normally the package need to take about 2-5 weeks, some remote area need more than 5 weeks arrive.  Please take care it.

FEEDBACK

1.We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.

2.Please DON'T leave negative or neutral feedback if you haven't received item in 30 days, because we have mentioned the shipping time repeatedly.

PAYMENT

1.We accept PayPal payment ONLY, and must be received within 5 days from the date of purchase.

2. It is easy and safe for you to pay by credit cards, debit cards, bank transfers and PayPal account balances.

3.Buyers are responsible for import duties,custom fees and taxes, if any, please check your country.

RETURN

1.We believe our items are so outstanding. We are convinced you will be happy with your Purchase.

2. If you do not satisfy with our items. Please simply return to us within 30 Days in original condition. Just pay for the returned postage. Then we can issue full refund or resend the item to you after the returned item arrived at our warehouse.

3. Please include your eBay ID and item number with any email requests.

 

CONTACT US

1. If you have any questions, please feel free to email our service specialists.

2.Just contact us using the " Ask the seller a question" link on eBay.

3.Our aim is to provide Top Level Customer Service, normally so we will try our best to solve any problem.


Am 22.08.2022 hat der Verkäufer die folgenden Angaben hinzugefügt:


Am 24.08.2023 hat der Verkäufer die folgenden Angaben hinzugefügt:


Am 08.11.2023 hat der Verkäufer die folgenden Angaben hinzugefügt:


Am 14.03.2024 hat der Verkäufer die folgenden Angaben hinzugefügt:

  • Condition: Nuovo
  • Marke: Markenlos
  • Brand: Unbranded/Generic
  • Model: INMP441 Omnidirectional Microphone esp32
  • Type: INMP441
  • Compatible Brand: Universal
  • Interface: Digital I2S
  • Power Consumption: 1.4mA
  • noise ratio: 61dBA
  • Data: 24-bit
  • Stable frequency: 60Hz to 15KHz
  • High PSR: -75dBFS
  • power ground: GND

PicClick Insights - 10 pz INMP441 modulo microfono omnidirezionale interfaccia MEMS I2S per ESP-32 PicClick Esclusivo

  •  Popolarità - 0 utenti che lo osservano, 0.0 nuovi utenti che lo osservano ogni giorno, 16 days for sale on eBay. 0 venduti, 10 disponibili.
  •  Miglior Prezzo -
  •  Venditore - 650+ oggetti venduti. 1.4% feedback negativo. Grande venditore con molto buone risposte positive e oltre 50 recensioni.

Persone Apprezzato Anche PicClick Esclusivo