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Roof-top solar photovoltaic (PV) installations are gaining popularity. Usually these are grid connected systems. Their power levels range from one kilowatt to a few tens of kilowatts. These are being installed on the roofs of small buildings, office buildings,...
In this project, ESP-12E WeMos D1 Wi-Fi Uno based ESP8266 shield for Arduino-compatible board and Ubidots website platform are used for sending email or SMS alerts for temperature and humidity monitoring applications. The WeMos D1 uploads the temperature data...
Remote wireless display of sensor data is required in many industrial and consumer applications. Sensor data like light, temperature, accelerometer and strain gauge data, etc can be communicated through Wi-Fi and displayed on a mobile phone, laptop, or desktop...
We have heard of events/parties going out of control due to gate crashing by uninvited guests. Now, as a solution, imagine your door counting the number of invitees and raising an alarm when the number exceeds the guest list....
Opting for an LED bike headlight is quite cost-efficient when it comes to improving your visibility on the road. It makes your presence known to the others and provides you with a clear visibility so that you can avoid...
Hunting continues to make many animal species extinct, and the governments are unable to do much except introducing some laws and conducting regular surveys. But conducting a survey is not an easy task, especially without the help of technology. The...
Enabling you to talk with nature. All living beings, be they flora or fauna, have a unique way of communicating and expressing their emotions using various sounds and signals. We, humans, are blessed with the capability to observe, learn and...
Handheld devices play an essential role in the healthcare industry. With the sensors becoming smaller and compact, making a handheld device is also becoming easier and affordable. Heart rate measurement systems, or HR machines, are now available almost everywhere,...
Presented here is an LED-based 2D matrix display clock. There are a number of technologies used to create various displays in use today. The basic display systems we know are segment displays, 2D displays, 3D displays, and also mechanical...
This mono AF amplifier uses a single 5-pin LA4425A IC to deliver 5-watt output through a 4-ohm, 5-watt loudspeaker. The datasheet of LA4425A recommends a 13.2V power supply to get 5-watt output. A suitable heat-sink may be used for...