Debashis Das

How to Program ESP8266 for DHT22 using MicroPython

For a beginner who is interested in programming Wi-Fi enabled microcontrollers like the ESP8266, understanding the ESP-IDF...

Build Your Own Capacitive Touch Sensor to Control Home Appliance using ESP32

In many cases, touch sensors are used instead of push buttons. The advantage is that we don't have to provide force to press a...

All About Transformer Protection and Transformer Protection Circuits

Transformers are one of the most critical and expensive components of any distribution system. It is an enclosed static device...

230V AC Mains Over Voltage Protection Circuit

Most of the power supply these days are very reliable due to advancement in technology and better design preferences, but there...

Block all your Ads with PI-hole on Raspberry Pi

After reading the heading of this post, you must be wondering, why are we posting an article which explains how to block ad-...

How to Test a SMPS Power Supply Board

To verify product functionalities and design parameters, a power supply circuit requires sophisticated testing methods and...

BLE based Proximity Control using ESP32 – Detect Presence of BLE Devices

Proximity sensors can be described as one of a kind switches that detect a nearby object with the help of light,...

Pure Sine Wave Inverter Using Arduino

Inverter circuits are often needed where it is not possible to get AC supply from the grid. An inverter circuit is used to...

Design your own ESP Modules for Battery Powered IoT Applications

The ESP Controllers from Espressif are becoming a widely popular choice for IoT based designs. There are many kinds of ESP...

Build Your Own 5V, 1A Adjustable SMPS Using a Dead Computer ATX Power Supply

A Switch Mode Power Supply (SMPS) is an indispensable part of any electronic design. It is used to convert mains high-voltage...