Arduino Nano
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Measuring CO2 Concentration in Air using Arduino and MQ-135 Sensor The earth’s Atmospheric CO2 level is increasing day by day. The global average atmospheric carbon dioxide in 2019 was 409.8 parts per million and in October-2020 it is 411.29. Carbon dioxide is a key greenhouse gas and responsible for about three-quarters of emissions. So CO2 level monitoring has also started to gain importance. In our previous… |
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Interfacing Gravity Infrared CO2 Sensor with Arduino to Measure Carbon Dioxide in PPM 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… |
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Air Quality Analyzer using Arduino and Nova PM Sensor SDS011 to Measure PM2.5 and PM10 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… |
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Li-Fi based Text Communication between Two Arduino 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… |
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Cell Phone Controlled Fingerprint Solenoid Door Lock using Arduino and HC-05 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… |
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Interfacing Sharp GP2Y1014AU0F Sensor with Arduino to build Air Quality Analyser 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… |
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Gesture Controlled Contactless Elevator using APDS9960 Sensor 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… |
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SPI Communication with Nuvoton N76E003 MCU to Communicate with Arduino 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… |
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Long Distance Wired Serial Communication with Arduino using RS485 and CAT Cables 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,… |
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Non-Contact Wall Mount Digital Infrared Thermometer with SD Card Logging 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… |
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DIY GPS Speedometer using Arduino and OLED 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… |
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Contactless Smart IR Thermometer using Arduino and Android – Save and Share Results with Pictures 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… |
