Embedded - ->for u

Digital Image Processing Image processing is a method to perform some operations on an image, to either enhance the image or to extract some useful information from it. It is a type of signal processing with an image as input and output in the form of an image or  characteristics/features associated with that image.

Last week we have posted opening with capgemini freshers with percentage of 50%... BE/BTECH/MCA/BCA... Almost 200+ people availed that link.. And link will b active till Jan 13th 2019... Now we have got opening in IT and core giant Honeywell... Intrested can send mail at info.embeddedfru@gmail.com

Guys good news again!! Honeywell hiring freshers.. Engineering 2018 passed out.. Can mail us.. Will provide link to fill application....

Software Design

GUI in MATLAB

Fake Note Detection Unit We use signal conditioning to identify whether the note is fake or real. For this, every note is passed through UV light to detect the originality of the note. The specialty of a currency note is that it absorbs the UV light and a fake note reflects the UV light. The conditioning and testing is done using a UV LED transmitter and UV receiver or detector.

 Control functions are performed by PIC16F877A and image processing by MATLAB.

Once the note is under the camera, data will be sent serially to MATLAB to start capturing the image of the note and do the image processing in MATLAB. After processing, the data will be sent to controller serially from MATLAB ad controller will make decision about the category of the note. The decision or signal will be sent to the twister to move the correct cabinet under the conveyor so that the note will fall into respective cabinet. The twister consists of on a rotating platform driven by a stepper motor. The stepper motor is controlled by the microcontroller. Cabinets for various denominations are mounted on the twister. Once the process is completed, the recognition amount of the currency and the itemized bill are displayed on the Graphical User Interface (GUI).

Overview The bundle of notes, to be counted will be placed in the note feeding unit. The user then pushes the START button in the GUI. The note feeding unit feeds the note, one by one, to the conveyor belt. Sensors are placed at various points on the conveyor belt, which detects the presence of the note. The conveyor is stopped when the note reaches the fake note detection unit. Then the conveyor is restarted. After passing the fake note detection unit, the note moves again on the conveyor until it will pass another sensor. This sensor is to detect the presence of the note and stops the conveyor once the note is under the camera.

Currency Recognizer and Counter System System accepts a bundle of currency notes, recognizes denominations, sorts it into bins & displays the total amount using MATLAB and PIC16F.

Below is our Email id: info.embeddedfru@gmail.com Since many people r asking personally where to send.. It s also in pinned msg also.. Thanks

Guys.. Freshers opening registration with respective company will end by Jan 13th.. We have got total 137 mails on this.. Reached everyone through mails and given with the link to register.. If we missed out anyone.. Pls write us back... Thanks and all the very best

Please find the reference code.. Just for reference.. not tested..

Circuit Diagram

Stepper Motor Control Using Arduino 👉 In this project, we have used a bipolar stepper motor. Hence, we used the Motor Driver IC L293D, which is an H – bridge type driver. Since it is a bipolar stepper motor, there are only 4 wires we need to connect. 👉 Connect the two wires from one coil to outputs 1 and 2 of L293D and the other two wires from second coil to outputs 3 and 4. 👉 The 4 inputs of the L293D Motor Diver IC are given from Arduino UNO. So connect them to any of the 4 digital I/O pins. 👉 The control of steps is done with the help of computer using serial monitor. So, make sure that the RX and TX pins of the Arduino are not used as digital I/O. 

A brief introduction to Stepper Motor 👉 A Stepper Motor is a type of DC Motor that rotates in discrete steps. Due to their unique design, stepper motors can be controlled for precise positioning without any feedback. 👉 Based on the winding of the stator, stepper motors can be classified as Bipolar Stepper Motors and Unipolar Stepper Motors. 👉 The driver circuit of a unipolar stepper motor can be implemented with simple transistor based circuit or a Darlington Transistor IC like ULN2003A. But in case of a bipolar stepper motor, we need to implement an H – bridge type driver like L293D Motor Driver IC.