Explore practical Arduino Nano projects focused on compact, low-power, and space-constrained designs. Arduino Nano is commonly used in embedded systems where size matters, while still offering full Arduino compatibility.
These projects demonstrate how Arduino Nano is applied in miniaturized electronics, sensor-based systems, wearable concepts, and custom PCB designs, with complete code and circuit diagrams provided.
The increasing concentration of carbon dioxide in the air has become a serious problem now. According to the NOAA report, the ozone CO2 concentration has reached 0.0385 percent (385 ppm) and it is the highest amount in 2.1 million years. This means that in one million particles of air, there are 385 particles of carbon dioxide. This rising level of CO2 has affected the…
Air pollution is a major issue in many cities and the air quality index is getting worse every day. According to the World Health Organization report, more people are killed prematurely by the effects of hazardous particles presented in the air than from car accidents. According to the Environmental Protection Agency (EPA), indoor air can be 2 to 5 times more toxic than…
Li-Fi (Light Fidelity) is an advanced technology that allows transferring data using optical communication, such as visible light. Li-Fi data can travel through the light and then be interpreted on the receiver side using any light-sensitive device, like an LDR or a photodiode. Li-Fi communication can be 100 times faster than Wi-Fi. In this comprehensive guide, we'll…
Now the whole world is in the grasp of COVID 19 and everyone is taking precautions wherever they can to prevent themselves from contracting this serious disease by following social distancing, wearing masks, using cashless transactions, and avoids touching anything to prevent the spread of germs. With the advent of technology, the normal locks are becoming things of the past…
Air pollution is a major issue in many cities and the air quality index is getting worse every day. According to the World Health Organization report, more people are killed prematurely by the effects of hazardous particles presented in the air than from car accidents. According to the Environmental Protection Agency (EPA), indoor air can be 2 to 5 times more toxic than…
In this time of the Corona pandemic, elevators have become a high-risk place where everybody touches the same buttons. At many places, people have discovered tricks to prevent contact with elevator buttons like using a pumping paper, toothpicks, or sanitary tissues for pressing the lift buttons.
So in continuation of our previous Corona safety…
SPI is a crucial communication protocol that is widely used to communicate among microcontrollers, SD cards, and various other sensors. SPI stands for Serial Peripheral Interface, it's a synchronous data transfer protocol where the master device could communicate with multiple slave devices as well as get data from them. It is synchronous because the master generates a…
We have been using Microcontroller Development Boards like Arduino, Raspberry Pi, NodeMCU, ESP8266, MSP430, etc. for a long time now in our small projects where most of the times distance between the sensors and board is not more than few centimeters at max and at these distances, the communication between the different sensor modules, relays,…
Scanning temperature at the entry gates of office, malls, shopping centers, etc. has become the “new normal” to tackle the current Covid19 pandemic. While it is possible to use a handheld IR thermometer to measure the temperature of each person entering the gate and note it down manually on a notebook, it is simply not the most effective way. We have already designed a…
Speedometers are used to measure the travelling speed of a vehicle. We previously used the IR sensor and hall sensor to build Analog speedometer and digital speedometer respectively. Today we will use GPS to measure the speed of a moving vehicle. GPS speedometers are more accurate than standard speedometers because it can continuously locate the vehicle and can calculate the…
The current COVID-19 scenario needs no introduction. While everyone is giving their best to move forward, it is important to act responsibly and tackle this problem collectively. Today in many public places and in other gatherings, it has become common to screen individuals for body temperature, as a preventive measure to check for fever. The device that is used to do this…
For medical or clinical applications, measuring human body temperature is an important parameter to determine the health condition of any individual. However, there are lots of ways to sense temperature but not everything has the accuracy to meet the clinical thermometry specifications. The MAX30205 temperature sensor is specifically designed for this application. Do note…
