In this article, we will discuss the electrical wiring required to set up a DIY IoT smart control system to control 8 3W spotlights, one ceiling fan and one Indian jhar bati (chandelier lamp). We have a total 8 number of connections where 8 out of 8 are dimmable and we are using the traditional piano/rocker switches. We have discussed about interfacing the piano/rocker switches with ESP32. We … [Read more...]
Rotary Hammer vs. Demolition Hammer
A rotary hammer is the big brother of the home drill. The rotary hammer vs demolition hammer is a debate as in some cases, you will be able to complete the same work with any of the tools. But they do come with their unique benefits and that is the reason for publishing this article. A rotary hammer is a drill that uses rotation and a hammering action that can be used to break up the concrete. … [Read more...]
How Do I Choose the Best Refrigerator?
Refrigerators are sold since the year 1887. It is an appliance for which, we need to know certain points to select the correct one and enjoy it at least for the next decade. A refrigerator must be repairable by the company and third party with minimum effort from the customer. The gross story of most families on this earth is pretty common : the First generation used a low volume … [Read more...]
How to Make a Non-Contact Voltage Tester
Non-contact voltage contact testers are difficult to classify as a tester because they are not subject to a special standard. Non-contact phase testers use a sensor to detect the electric field strength in the immediate vicinity of the conductor and visually signal via a display. A battery is required for operation. Depending on the sensitivity, the existence of voltage can also be determined even … [Read more...]
How to Make a Good Electrical Earthing (Grounding)
The ground is an electrical conductor which is used to carry fault currents, signals, and radio waves. An earthing involves an uninsulated electrically conductive element of a grounding system which is located as a line-shaped electrical contact surface below the earth's surface. The earth should have a good electrical connection to the ground to divert electrical currents there. The … [Read more...]
Guide to Solar System for Beginners
Worldwide a lot of peoples want to harvest electricity from the sun. Having it is like having a well, tube well or a borewell at home. Grid electricity is great to run the appliances of higher wattage but the appliances like the LED lamps can easily run from your system. The purpose of this article is to enlighten you about the different components of a solar system and help you to purchase the … [Read more...]
How To Set Up an Electronics Lab at Home
It is a common question for a hobbyist to ask a list of tools and components to set up an electronics lab. As most of the peoples have a limited budget, set the initial focus on the civil, architectural and electrical part. The selected room must be spacious (of around 150 to 200 square feet), preferably have 12 feet ceiling height. There should be plenty of natural light. Like any lab, there must … [Read more...]
How to Build a DIY Water Level Indicator?
Water level indicator can be of various complexity levels of different cost. A water level indicator is very much helpful at least in North America and India. Peoples in both of these countries outside the major cities need to pump a natural source of water into a reservoir and then pump to the overhead tank. The Source of natural water can be rainwater, a borewell or a tubewell. This kind of … [Read more...]
What is the Maximum Cable Length Between Arduino/ESP32 and a Sensor
After reading our guide on How to Interface a Piano/Rocker Switch (SPST) With ESP32 Arduino, one reader has asked whether it is possible to keep all his ESP32 with relays and indicators at one room and connect the switches, sensors of the whole house via cables. That is possible to deploy but various hardware components will be required. Also, coding may need some change. I believe that so huge … [Read more...]
How to Interface a Piano/Rocker Switch (SPST) With ESP32 Arduino
We are talking about the regular white colour rocker switches which are commonly used across the globe. They came into the market in the 70s replacing the tumbler switches made up of Bakelite and China clay. They are SPST switches ( read our old article Type of switches to know more). They have different names such as piano switch, rocker switch, decorator rocker switch etc. As because before … [Read more...]
ESPHome VS. Tasmota : When to Use Which and Why
Both Tasmota and ESPHome are nice "platforms" for building a smart home. We have already discussed the getting started part with Tasmota and ESP32. Depending on the use-case, ESPHome may be a better choice. In this article, we will discuss the practical things about ESPHome and Tasmota taking it granted that you are using an ESP32 development board. Why ESP32 over … [Read more...]
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