Hardware

Detailed article on computer hardware parts like RAM, Motherboard, Processor, Graphics card. Hardware also covers topics on hardware of Server, Single Board Computers like Raspberry Pi to Libre Hardware Projects.

How to Build ESP32 Arduino Glass Touch Switch With LED

These days, glass touch panels are becoming common even for the household switchboards. China worldwide selling units which have touch switch, a remote control, sometimes Wi-Fi with a mobile application for IoT control. Here is how to build ESP32 Arduino glass touch switch with LED. Glass touch panels are electric shockproof and cost of manufacturing total units including relay, SoC (like ESP32) … [Read more...]

What to Know to Buy a NFC USB Dongle For Android, PC, Mac

Near-field communication (NFC) is a set of protocols which enables two devices to establish communication by bringing them closer to each other. Most commonly known NFC devices are used in contactless payment systems on credit and debit cards (sometimes referred to as contactless cards). Apart from that usage, NFC can be used for sharing contacts, photos, videos or files exactly like Bluetooth but … [Read more...]

Tips For Building Digital Switch With ESP32 Arduino

There are some design considerations to increase safety while building an ESP32 Arduino based physical switch controlled by IoT project. In our earlier guide (Controlling AC Powered Appliances With ESP32 and IBM Watson IoT), we have shown the basic of how to use a pushbutton and IoT control together. The case will be using both the pushbutton and IoT control independent. Our that guide is a … [Read more...]

Required Circuit For Bare Minimum ESP32 Module

When you need many ESP32 for projects then you'll save money by avoiding full development board. Import tax is quite higher in many countries, yet the bare ESP32 module cost only $3. Bare minimum ESP32 module is more than System on Chip. ESP32 module, unfortunately, does not have built-in USB–TTL/ UART hardware. That costs $1.5 per piece and you do not need to connect USB–TTL/ UART hardware … [Read more...]

Develop WEB Applications with ESP32 and IBM Watson IoT

Here is How to Develop Web Applications with ESP32 and IBM Watson IoT. Often, using an HTML page with JavaScript is practical than developing an Android App. Because, web applications can be hosted on own cloud server or cloud storage service - thus it becomes device independent. Securing access to such web application usually, need minimal configuration for the Apache2 server. Cloud storages … [Read more...]

Cheap ESP32-CAM Setup With Arduino IDE

Here are Minor Details of Cheap ESP32-CAM Setup With Arduino IDE. In an earlier guide, we described the steps to setup the normal variants of ESP WROOM 32 with Arduino IDE on Windows PC. The software setup part is essentially the same for these cheap ESP32-CAMs too but there is more hardware to buy with it. This board has an OV2640 camera and a microSD card slot. Obviously, OV2640 camera … [Read more...]

Controlling AC Powered Appliances With ESP32 and IBM Watson IoT

It is an upgrade to our previous article to control ESP32 Arduino LED from IBM Watson IoT. We already talked about Android Apps for Watson IoT for this purpose. We already have an article to use relay with Arduino. Our linked relay guide should be enough for anyone to understand how to use relay and AC connections. These relay modules will create mechanical clicking sound like switch. My relay … [Read more...]

Control ESP32 Arduino LED from IBM Watson IoT

Anthony Elder published a guide on developerWorks Recipes on how to "Build your own Watson controlled kettle" for ESP8266. This article's code is shamelessly ripped-off from him for broader usage. This guide will show how to turn on and turn off a LED connected with ESP32 Arduino from IBM Watson IoT platform. That "remote control" over the internet will be shown by using a simple bash scripts - … [Read more...]

ESP32 Arduino : Fetching Current Weather Data (No JSON Parsing)

ESP32 Arduino means, an ESP32 dev board (which costs $8) and Arduino IDE configured for ESP32 in the way we described in an earlier guides. Our examples with IBM Watson IoT not fully easy guides for the newbie. This guide on Internet of Things (IoT) is relatively easier than them. To follow this guide, you need to sign-up for free account on OpenWeatherMap … [Read more...]

Guide to Run Air Conditioner Economically and Safely

Improper setup of air conditioner either can lead to reduced life of the machine or reduced life of the owner. Although the former fate is more common, later fate not just rare across the globe. Manufacturers of air conditioner like heavy duty electrical system will assume that the owners are knowledgeable enough to arrange technicians for correct electrical setup and heat insulation. An air … [Read more...]