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Power consumption is a critical issue for a device running continuously for a long time without being turned off. So to overcome this problem, almost every controller comes with an Arduino sleep mode, which helps developers to design electronic gadgets for optimal power consumption. Sleep mode puts the device in power-saving mode by turning off the unused module. Whether you…
Solenoids are very commonly used actuators in many process automation systems. There are many types of solenoid, for instance, there are solenoid valves which can be used to open or close water or gas pipelines and there are solenoid plungers which are used to produce linear motion. One very common application of solenoid that most of us would have come across is the…
Noise pollution has really started to gain importance due to high population density. A normal human ear could hear sound levels from 0dB to 140dB in which sound levels from 120dB to 140dB are considered to be noise. Loudness or sound levels are commonly measured in decibel(dB), we have some instruments which could measure the sound signals in dB but these meters are…
There are several water fountains which unconditionally sprinkle water with some interesting lighting effects. So I wandered about designing an innovative water fountain which can respond to external music and sprinkle water depending on the music beats. Isn’t it sound interesting?
The basic idea of this Arduino Water Fountain is to take an input…
Charlieplexing is a technique of controlling many LEDs using a few I/O pins. Charlieplexing is same as multiplexing, but it uses the tri-state logic (high, low input) to reduce the number of pins dramatically and to gain efficiency over multiplexing. The Charlieplexing technique is named after its inventor, Charlie Allen, who invented the technique in 1995. We previously…
Designers use many wireless communication systems like Bluetooth Low Energy (BLE 4.0), Zigbee, ESP8266 Wi-Fi Modules, 433MHz RF Modules, Lora, nRF etc. And the selection of medium depends on the type of application it is being used in. Among all, one popular wireless medium for local network communication is the nRF24L01. These modules operate on 2.4GHz (ISM band) with baud…
When developing electronic projects, the power supply is one of the most important part of whole project and there is always need of multiple output voltage power supply. This is because different sensors need different input voltage and current to run efficiently. In this scenario, a power supply which can output multiple voltages becomes very important. There are options…
Morse code is a system of communication to encode any character in two different durations of signals called Dots and Dashes. Morse code is developed by Samuel F.B. and further used in telegraphy for transferring secret information. It was most used at the time of World War II. A Morse code can be performed by tapping, flashing light or writing. The Morse code is available…
Today most of the phones come with gesture control feature to open or close any app, start music, attend calls etc. This is a very handy feature to save time and it also looks cool to control any device with gestures. We previously used accelerometer to build gesture controlled robot and gesture controlled Air mouse. But today we learn to interface a gesture sensor…
Today any average car consists of around 60 to 100 sensor units in it for sensing and exchanging information. With car manufactures constantly making their car more smarter with features like Autonomous driving, Airbag system, Tire Pressure monitoring, Cruise control system etc. this number is only expected to go high. Unlike other sensors, these sensors process critical…
Most of the farmers use large portions of farming land, and it becomes very difficult to reach and track each corner of the large land. Sometimes there is a possibility of uneven water sprinkles. This results in the bad quality crops, which further leads to financial losses. In this scenario, the Smart Irrigation System using the Latest IoT technology is helpful and leads to…
TOF or Time of flight is a commonly used method to measure the distance of distant objects by various distance measurement sensor like ultrasonic sensor. The measurement of the time taken by a particle, wave or an object to travel a distance through a medium is referred to as Time-of-flight (TOF). This measurement can then be used to calculate the velocity or…
