Embedded - ->for u

Am so happy to see that I didn't get even a single program..

If anyone tries out any program, pls mail us.. Wil post in the channel..

10 C programs you must know before appearing for technical interviews #1: Swap two numbers (without using a temporary variable) #2: Patterns (one of their favorites) How to print this pattern?? A B C D E D C B A    A B C D C B A      A B C B A        A B A          A #3: Finding the nth Fibonacci number using recursion #4: Armstrong number #5: Concatenate two strings without using strcat() #6: Sort elements of an array using pointers (selection sort technique) #7: Enter and print details of n employees using structures and dynamic memory allocation #8: Tower of Hanoi using recursion The Tower of Hanoi is a mathematical game consisting of three rods A, B and C and a number of disks of different sizes which can slide onto any rod. The objective of the game is to move the entire stack from A to C using B as an auxiliary. There are few rules- Only one disk can be moved at a time and no disk can be placed on top of a smaller disk. Recursive solution: 1. move n−1 discs from A to B. This leaves disc n alone on peg A 2. move disc n from A to C 3. move n−1 discs from B to C so they sit on disc n #9: Add numbers using Command line arguments #10: Print its own source code using File

How Li-Fi is generated?? 1. A LED bulb is a semiconductor light source. 2. Consequently, the constant current of electricity supplied to a LED bulb can be dimmed and dipped up and down at very high speeds without being detected by the human eye. 3. For instance, data can be fed into a LED light bulb via signal-processing technology. 4. Thereafter, this data is embedded in its beam and sent back at rapid speeds to the photo-detector or photodiode. 5. Miniscule changes in the LED bulb’s swift dimming are converted by the receiver into electrical signals. 6. Finally, the signal is reconverted into a binary data stream recognisable as web, video or audio applications running on Internet-enabled devices. The spectrum of visible light is considered 10,000 times bigger than that of radio waves on the electromagnetic spectrum, which measures radiation frequency. Deploying light can avoid the expenses required for the limited range of radio waves.

What is Li-Fi??? 👉 Li-Fi is a bidirectional, high-speed, fully-networked wireless communications technology. 👉 In simple words, it can be considered a light-based Wi-Fi. 👉 Where radio waves are deployed to transmit data and information in Wi-Fi, Li-Fi uses light waves, which is faster and acts as a better tool for communication. 👉 In Li-Fi, LED lamps fitted with transceivers can light a room and receive information too. 👉 Unlike Wi-Fi, which can hold limited access points only, Li-Fi can have multiple. 👉 Considered a Visible Light Communications (VLC) system that runs wireless communications at extremely high speeds, Li-Wi uses common household LED (light-emitting diode) bulbs to transfer data, ensuring speeds of up to 224 gigabits per second.

Li-Fi: The Brighter Way to Communicate 👉 Globally, Wi-Fi has been used for years to access and transmit data. But more often than not, Wi-Fi and their modems have elicited unsavoury remarks when more users have logged on. 👉 Li-Fi is now poised to transform for the better the scenario of data transfer and access.

This is how push rod should move with petals. As the pushrod moves up it pushes the connecting rod and petals down. As it moves down it drags connecting rods and petals are being closed.

Step 4 : Petals mechanism 👉 Make yourself a test stand. Fix the flower with the stem in an upward position. 👉 Put the pushrod through the stem with its head upward. Solder short tubing perpendicular to the bottom end of the pushrod and create yourself a small connecting rod out of 1mm brass wire to connect servo and the pushrod (see the picture below). 👉 You should be able to move with pushrod up and down using a servo. Try it by hooking up your Arduino. 

Step 3 : Creating the Stem and Pushrod