Again, we are talking about the regular rocker/piano switches which are commonly used everywhere. Previously we published an important article - How to Interface a Piano/Rocker Switch (SPST) With ESP32 Arduino. These days, concealed conduit wiring with modular components are standard. There has been standardisation across the globe for compatibility. I have written before that these came into … [Read more...]
Is It Feasible to Build an LCD Projector at Home?
The working principle of an LCD projector is just like the vintage toy projectors. In the case of a vintage toy projector, there is a light source (that used to be a vintage incandescent bulb) behind and a focusing lens in front. The slide/film was inserted in a slot in between these two elements. These projectors were great in the era when the chance of custom recording was limited to still … [Read more...]
What to Know About FPGA in Electronic Design Service
Before the development of CAD, electronic circuits were designed and manufactured by hand. Some advanced stores used geometric software to create the tracks with the Gerber photoplotter. The process was essentially graphic, with a transition from the electronic diagram to a layer for the UV insolation machine. The development of FPGA circuits is often referred to as programming. In this context, … [Read more...]
ESP32 ESP Rainmaker Cloud for Arduino
Espressif is a company that has revolutionized the low-cost WiFi, BLE development. With classic ESP32 WROOM module, we have shown Controlling AC Powered Appliances With ESP32 and IBM Watson IoT with zero monthly cost. But the coding part with IBM Watson IoT was not easy. Although, we have pointed out how to use Android Apps to Control Devices Connected to IBM Watson IoT, essentially it was not … [Read more...]
How to Replace delay() with millis() : Arduino Programming
In many of the sketches shared by us have the millis() instead of delay(). Not always it is possible to explain a function within a guide on how to do a thing. In this article, we will explain about millis() and provide some easy examples so that you can reproduce yourself. It is normal that the Arduino users initially use the delay() function. The main reason is the blink example is the thing … [Read more...]
Arduino LED Candle : Some Codes to Help You
Thanks to China for making various designs of LED candles available all over the world. Indeed, most of these LED candles are not closest to the real candle, but they do give us the idea to think around playing around creating our microcontroller controlled LED candle. I was looking for a realistic feel and soon discovered that two people in project sites already worked a lot behind the creation … [Read more...]
eSIM : What You Should Know
eSIM (Embedded SIM) is an evolution of the SIM card for mobile phones and connected objects. Although the size of SIM cards has been reduced more and more, some "new" communicating objects, such as smartwatches, no longer have enough room to integrate a SIM card, even in nano format. And, above all, it is quite complicated to change the SIM card on connected objects. It was then decided to develop … [Read more...]
What is a Smart Speaker?
A smart speaker is an Internet-connected speaker that transmits music or voice wirelessly and integrates the functions of an intelligent personal assistant (IPA) via non-invasive voice control and speech recognition. No uniform term has yet developed for these devices, which is why terms such as intelligent loudspeakers and networked loudspeakers are also used to denote them. The speaker … [Read more...]
How To Easily Create Android App Controlled Local Devices With ESP32
For DIY IoT setup, we already have guides with IBM Watson IoT. In those guides, we have mentioned an Android App named "HTTP Shortcuts" for making the thing a bit smarter and professional. You'll not need to set up IoT to only locally control a device, for example, a water pump probably does not need control over the internet. In these cases, you only need Wi-Fi. Here is the code snippet for … [Read more...]
What Are the Problems of Smart Switches and Smart Sockets
Automation does not always need microcontrollers and Wi-Fi. The ICs, transistors and basic sensors can help to automate a lot of things. Smart sockets and smart switches are definitely great tools to control electronics of one house from another house. But, we are a necessity to tell you the potential problems and limitations of smart switches and smart plugs. Smart switches and smart plugs … [Read more...]
What is an Open Source Hardware?
Open Source Hardware is a piece of hardware that is manufactured according to the free blueprints. The movement and idea are close to or goes back to the Free Software, Open Source and DIY movement. Even if "open source hardware" often has a lot in common with open source software, "open hardware" can also take place far away from software technology: For example, the project "Open Source Car" … [Read more...]
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