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Impact Collision Switch Sensor Module and Circuit Diagram

Last Updated on April 28, 2025 by Swagatam Leave a Comment

Here we are going to learn about a very interesting small sensor called the Impact Collision Switch Sensor Module. This module is super simple but very useful especially when we want to detect a shock, collision, hit or a sudden tap on a surface. Now let us go step-by-step to understand everything about it. What […]

Filed Under: Security and Alarm, Sensors and Detectors

AMS1117 1A LDO Voltage Regulator IC – 3.3V, 1.8V, 2.5V, 5V Regulators

Last Updated on April 25, 2025 by Swagatam 1 Comment

In this post I will be talking about one famous voltage regulator IC called AMS1117. It is a 1 Amp Low Dropout (LDO) Linear Voltage Regulator and we can get it in both fixed output types and also adjustable output version. It is super small, easy to use and available in SOT-223 package mostly, which […]

Filed Under: Datasheets and Components, Voltage Control and Protection

ISD1820 Voice Recording IC Datasheet, Circuit Diagram

Last Updated on April 16, 2025 by Swagatam Leave a Comment

The ISD1820 is a voice IC that lets us record voice from a mic and play it back using simple buttons or microcontroller. We can record between 8 to 20 seconds which depends on how we set it. This IC is used in small voice projects, talking toys, greeting circuits, voice alerts, and more. ISD1820 […]

Filed Under: Audio and Amplifier Projects

What is ISD1820 Module? How to Connect and Use

Last Updated on April 15, 2025 by Swagatam Leave a Comment

The ISD1820 is a small ready-made module which can record human voice for short time and then play it back. It is based on the ISD1820 IC which is a voice record and playback chip. This module is very popular for DIY projects where we want to make some talking gadget or voice-alarm,or greeting system, […]

Filed Under: Audio and Amplifier Projects

Explained: MAX4466 Electret Microphone Amplifier Module with Adjustable Gain

Last Updated on March 14, 2025 by Swagatam Leave a Comment

In this post we will be talking about this MAX4466 microphone amplifier module, right? So this is a tiny little circuit that can amplify weak sound signals from an electret condenser microphone (ECM). That means it is going to take a very small electrical signal from the microphone and then boost it up so we […]

Filed Under: Audio and Amplifier Projects

DC-DC Boost Module (0.9V~5V) to 5V 600mA USB Step-up Board

Last Updated on May 9, 2025 by Swagatam Leave a Comment

So this is a DC-DC boost converter that takes a low voltage (0.9V to 5V) and steps it up to a stable 5V. We use this when we have a small battery, but we need 5V output, like for USB devices. It is super useful for battery-powered projects and small electronics. Main Features How It […]

Filed Under: Power Supply Circuits

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