Guides for building a DIY water level monitoring system using Ultrasonic Sensor and ESP32 or Arduino UNO are quite common. In real life, using an Ultrasonic Sensor for a water tank is often not practical because a water tank can have 1-2 sources of water falling to fill up the tank from the top. Also, with Ultrasonic Sensor, you need to make sure that the position of the sensor is optimum in a way … [Read more...]
Laser Security System Using ESP32 Arduino
Laser tripwire-based security systems use low-energy lasers and simple technology to trigger the alarm system. This alarm can be auditory, visual or mobile notification via IoT based system. These systems are completely legal in any country till the laser rays are not disturbing the public. On the other hand, a laser fence or laser wall uses a high energy laser (cutting laser) to injure bodies … [Read more...]
How to Do Electrical Layout Plan for Adding Smart Switches
If your electrical connections and switches are not properly planned then your cost to implement smart switches will increase. Installing more than the average number of smart switches will increase electricity consumption. Whenever you are implementing ceiling light, ceiling speakers and IoT; the complexity and electricity consumption is increasing. To keep the electricity bill lower, we suggest … [Read more...]
Model Railroading For Dummies
A model railway is a miniature replica of parts of a big railway. In addition to tracks and vehicles, buildings (e.g. station buildings), people, other vehicles (e.g. cars) and landscapes are often reproduced. In this article, we will help you to understand the basics so that you can purchase your own set. The first thing to decide is to determine where your train will run i.e. … [Read more...]
How Internal Pull Up/Down Resistor Works (Arduino/ESP32)
In the context of Arduino/ESP32, we usually add a resistor to the push button to complete the setup. Instead of using a resister, we can define the resister in code. In general, pull-up resistors are the more common simply because that is a thing we need most of the time due to the nature of logic inputs. In this article, we will explain how pull-up resistors work. Pull-down resistors will work in … [Read more...]
Why ESP32 is a Popular Microcontroller Solution?
The ESP32 is a low-cost, low-power, 32-bit microcontroller family introduced in 2016 by the Chinese company Espressif. It is an open design, open-source-friendly family of microcontrollers which enable the construction and networking of network-based actuators and sensors. The GNU Compiler Collection including the toolchain is available as a free development tool. The ESP32 family has various … [Read more...]
How to Connect Bixby with ESP32 Arduino
Worldwide, there are a lot of Samsung Galaxy smartphone users and integrating ESP32/Arduino Bixby can help them easily automate their devices and homes within the Samsung ecosystem. The method we are describing to integrate does not require a hub. So, for the Samsung smartphones such as S22 Ultra, using the Bixby voice control, we can turn on/off our devices or add more automation. For this … [Read more...]
ESP32 Arduino IoT Relay Control with Google Home, Alexa and Manual Switch
Recently I have discovered a no-code IoT platform named SirnicPro for Arduino, ESP32-based projects which offers almost everything the professional IoT devices allow. No-code platform means the Arduino sketch is automatically generated. Practically there is nothing to learn since everything is click, configure and generate. This is kind of project is quite difficult to produce with a … [Read more...]
Getting Started with Arduino IoT Cloud with ESP32
Arduino IoT platform is great particularly if you want to avoid backend configuration, and management and want a nice mobile app UI. There are certain differences with self-hosted IoT solution and platforms such as IBM Watson IoT. As it is officially from the creators of Arduino, it is easy on certain parts of the work but it is obscured too. The documentation is not easy for everyone and that is … [Read more...]
ESP32 Arduino IoT Relay Control (PHP MySQL Based Self Hosted)
This is the first guide for the series of guides to replace the setup for IBM Watson IoT based projects. If you look at our old articles and GitHub repository, you will realize that we were publishing IBM Watson IoT-centric sketches for the past 4 years. A significant time and effort were spent and our innocent readers were using them. Suddenly they came to know that IBM Watson IoT platform will … [Read more...]
How to Create Own PHP Based IoT Webserver for ESP32 Arduino
You can create your PHP MySQL-based personal IoT web server, even use WordPress or some PHP-based admin panel, toggle button, gauges etc. We can always send HTTP POST Request to a Secure Webpage with PHP, but that will need a web server which will support the protocol. You can do it with ThingsBoard, but that is not what we are talking about. We are talking about a simple setup where you … [Read more...]
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