Anti-noise is also known as Active Noise Reduction is colloquially understood as a sound that is artificially generated to extinguish sound using destructive interference. For this purpose, a counter-signal is generated that corresponds to that of the disturbing sound but has the opposite polarity. Two different problems have to be distinguished: If a noise source emits sound, one tries to … [Read more...]
How an Engine Generator Set Works
A generator set is an autonomous device capable of producing electricity. A generator set is a machine that moves an electric generator through an internal combustion engine. They are commonly used when there is a deficit in the generation of electricity from somewhere, or when power cuts are frequent. Likewise, the legislation of the different countries may require the installation of a generator … [Read more...]
What is On-Board Diagnostics (OBD)?
On-board diagnostics (OBD) is a vehicle diagnostic system. During driving, all exhaust-influencing systems are monitored, in addition to other important control units whose data is accessible through their software. Any errors that occur are displayed to the driver via an indicator light and permanently stored in the respective control unit. Error messages can then be queried later via … [Read more...]
How to Make ESP32-CAM IP Camera Access from Anywhere in the World
First and foremost thing to warn - you can not compare the pro-grade IP cameras, something like EZVIZ IP camera with ESP32-CAM IP camera. ESP32-CAM IP camera module is dirt cheap and it is great to increase the number of video capturing devices. I would suggest you have some pro-grade camera to cover the main unsecured points of house/office and use ESP32-CAM IP camera module as an "add-on" to … [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...]
Which IoT Platform is Best for ESP32 Arduino?
There is no single best answer to the question when we want to find the best IoT Platform for ESP32 Arduino. I believe that many of the newbies are not sure why some makers talk about ESP32 Arduino and some talks about Raspberry Pi. ESP32 Arduino and some MQTT service or IoT platform is the easiest way to convert traditional electrical things to smart devices. This is a common need. 90% of our … [Read more...]
How to Protect IP Cameras From Hackers
Wireless home security cameras can be very easy to hack, giving criminals the real-time surveillance footage of your home at home. Perhaps you have noticed the sentence in our article on C6CN - "EZVIZ C6CN provides enough security as long as you can patch the common exploits deployed by the intruders". This article talks about some of the common exploits and the way to patch them. Commonly, … [Read more...]
Interface in Computing
The interface is the part of a system that serves the communication. The term denotes the physical phase boundary of two states of a medium. It describes the property of a system as a black box, from which only the surface is visible, and therefore only communication is possible about it. Two adjacent black boxes can only communicate with each other if their surfaces fit together. For the two … [Read more...]
How Are the Cheap Projectors (Under $200)
China manufactured products made an entry of all types of things to almost anyone's home. Our readers are intelligent, some know DIY works but their budget to buy any luxury product is less. A good, branded projector will cost no less than $1500 and will produce video near equivalent to a modern movie theatre. These cheap projectors are good as a secondary display device or second home or for … [Read more...]
DIY Smart Plug vs Commercial Smart Plug
IoT stuffs changed the management of our country houses. Today, we can control the external lights from other house and can view the live videos via connected security cameras. Thieves and animals avoid houses which seem to be under control under human. Light-dependent resistor control and motion sensors alone are not great to exert the effect of human control of the house from a different house. … [Read more...]
Pikocube : ESP8285 MCU Powered PCB LED Cube With Gyroscope
Pikocube is a funny, geeky LED cube dice project with 54 LEDs, gyroscope and Wi-Fi-control made by maker Moekoe from Germany. The dice consists of an ESP8285-01F MCU, six PCBs, a 150mAh lithium battery and charging circuit, an ADXL345 gyroscope, and 54 LEDs. Its structural design is quite clever. Of course, the project is open source with all the files available. However, it is not among the … [Read more...]
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