LM393- Electret Microphone Module

LM393 Electret Microphone module uses LM393 as its main Op-Amp and is a single channel signal output sensor module. LM393 module has 3 pins which are Out, GND and VCC. GND is connected to ground and VCC is connected to the positive terminal of power supply. Out is an Output pin. Out pin is high when it does not detect any sound. It goes low whenever it detects sound in its surroundings. Out pin is connected to digital pin of the microcontroller board or directly to a 5V relay.

There is a potentiometer onboard to calibrate the digital output of the module. By potentiometer, a threshold volume can be set and when this threshold volume is exceeded status LED will light up and digital output will be low. The other LED glows when the device is powered.  This module is can be used for Acoustic control light, give sound and light alarm working with Photosensitive sensor, sound control, sound detect and DIY projects like clap circuits. 

Features

• Uses an electret condenser microphone
• LM393 Op-Amp is used
• Signal Output indication
• Both Analog and Digital Output are given
• The comparator output is light
• Electric condenser microphone
• Low-level output signal used for sound control light

SHIPPING

• We at HatchnHack, believe that you as our customer have ordered the items with enthusiasm and an urgent requirement.
• We try to ship all orders received by 11 AM Indian Standard Time, on the same day.
• For ensuring fastest possible delivery time (i.e. the time in which the order reaches your doorstep), we ship your order only through trustworthy and highly reputable courier services.
• We may at a few times be limited by technical and stock issues (based on product specification or ready availability), and have to fulfill your order partially. In such rare scenarios, we shall inform you of the same before dispatching the order.
• In case you think that the condition of the parcel is not proper, or have any doubts regarding it being tampered with or damaged, kindly contact us through the support channel, on - 8810424663, or through e-mail at 'Sales@HatchnHack.com'.
• For tracking the shipment status of your order, you may either use the 'Track your Order' section of our website, or click on the mail confirmation you received from us with the Tracking Information.
• All packages shall be shipped with an invoice included, mentioning the price as regulated by the Indian Tax Regulations.

RETURNS POLICY

• Our policy lasts 15 days. If 15 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
• To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
• Several types of goods are exempt from being returned.
• Additional non-returnable items: Gift cards and Downloadable software products
• To complete your return, we require a receipt or proof of purchase.
• Please do not send your purchase back to the manufacturer.
• There are certain situations where only partial refunds are granted (if applicable)
• Any item not in its original condition, is damaged or missing parts for reasons not due to our error
• Any item that is returned more than 15 days after delivery