Waiting hours in queue is history, SmarQ will update you the current queue status and alarm you when it is almost your turn to be served. Story Waiting hours in queue for your turn to be attended is a waste of time. SmarQ allows you to take a queue number with a press of button. […]
SmartQ Notification with Azure IOT Hub and Virtual Shields Continue Reading
Abstract The Arduino inbuilt 10 bit ADC, can be used for constructing / measuring the 0Volt to 50Volt Digital Volt Meter. Popular MAX7219 display driver, connected with Arduino Uno will be used for displaying the measured voltage. This voltmeter can read only DC voltage. Parts and components Arduino Uno board Max7219 4 Digit 7Segment Common
Arduino 50V digital Voltmeter using MAX7219 Continue Reading
4 Channel RF remote built using PT2262 and PT2272-M4 IC from Princeton technology. PT2262 used as Encoder (Transmitter) and PT2272-M4 Decoder (Receiver) ICs are heart of the project. The receiver provides 4 channel Momentary outputs. All outputs are TTL level can be interface with other circuits or relay board. Transmitter works with 5V to 12V
4 Channel RF Remote Controller Continue Reading
Description TritiLEDs are always-on battery powered LED glow lights for general night-time marking use. Radioactive gaseous tritium light sources (GTLSs) are allowed in the United States in several consumer product categories, including watches, compasses, and gun sights, but general-purpose markers are considered “frivolous” and are prohibited. Leveraging advances in LED efficiency, battery capacity, and microcontroller
TritiLED – Multi-year always-on LED Continue Reading
Inrush current or input surge current refers to the maximum, instantaneous input current drawn by an electrical device during its initial turn on. Power converters also feature high inrush currents relative to their steady state currents that may be several times their normal full-load current when first energized. The inrush current of a power converter
Limiting Inrush Current Continue Reading
In Embedded system design, seven segment displays are playing a major role as numerical visual indications. Seven segment LED displays are brighter, more attractive and provide a far viewing distance as well as a wider viewing angle as compared to LCD displays. Its available wide dimensions (0.3 inch to 6 inch) and different colors (RED,
Arduino 8 Digit, 7 Segment BCD Counter using MAX7219 Continue Reading
How it works: The flashlight turns on automatic for 60 seconds when it senses that the room is dark enough. To turn on manual light for additional 60 seconds you need to push the RST button. The Light sensing LED Flashlight is invaluable for emergencies such as power failures or blackouts. Step 1: The Flashlight
Build A Smart LED Flashlight Using Arduino Continue Reading
Today I want to make a LED Scroll Bar as is shown in the picture above. Ten LED strips can flash in different effect by using a control board. Components LED strip, Arduino Nano, Dupont line and a control board. How to make it ? Step 1) Cut the LED strip into 10 pieces with
Arduino LED Scroll Bar using easyEDA Continue Reading
SmartWatering Particle Core based project in charge of taking care of my green plants This readme is subject to evolve. Basically, I am using 5 parts and a few meters of water hose [A I2C soil moisture sensor] (https://www.tindie.com/products/miceuz/i2c-soil-moisture-sensor/) A Particle Core [A water flow meter] (http://www.dx.com/p/hs01-high-precision-flow-meter-white-black-226937#.Vo2cj1JN8Vc) [An USB submersible water pump] (http://www.dx.com/p/at-usb-1020-usb-powered-pet-fish-tank-submersible-pump-black-dc-3-5-9v-337664#.Vo2ckFJN8Vc) An USB
SmartWatering – Arduino plant watering Continue Reading
How to work with Light Emitting Diode (LED) in Proteus In this post, we will be learning how to use the “Light Emitting Diode (LED)” component in Proteus simulation software. In case you have not got on through the basics of Proteus, here is the link – Proteus PCB Design and Simulation Software – Introduction. Note:- You
Proteus Tutorial – Light Emitting Diode (LED) and Bar Graph Display Continue Reading
