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Digital Clock On LCD (16x2) PIC16F1937 Used In FlowCode Programming and Simulation

In this sample project we are using FlowCode Simulation Software for Programming and Testing with PIC16F1937.It shows how to use and simulate and program LCD for use in different projects.In this Project we have created digital clock(Using two digit each for seconds minute and hours in 24 Hour format on LCD) on 16x2 Liquid Crystal Display.Varying the delay and write-erase sequence can be manipulated to get desired result.

Here is the Flow code program:
LCD(16x2) Display Related Programs
ADC-Voltage as Float(LCD with PIC16F1937)
ADC-Voltage as String (LCD with PIC16F1937)
ADC Sampling and outputting to a LCD(LCD with PIC16F1937)
Printing Number on 16x2 LCD Display with PIC16F88
Printing and Updating Number on 16x2 LCD Display
Printing a Two line(String) message (LCD 16x2)
Printing a formatted number on ( LCD 16x2 ) Using PIC16F88

LCD (Liquid Crystal Display 16X2):-
Its screen is an electronic display module and find a wide range of applications. A 16x2 LCD display is very basic module and is very…

Motor Types- AC Motor

Motor Types- AC Motor

An AC motor is an electric motor driven by an alternating current (AC).
It commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft that is given a torque by the rotating field.
There are two main types of AC motors, depending on the type of rotor used.
For more related information please refer:
Motor Types-Introduction
Motor Types- DC Motor
Motor Types- AC Motor
Motor Types- Special Types of Motor
Servo Motors

Stepper Motor
The first type is the induction motor or asynchronous motor; this type relies on a small difference in speed between the rotating magnetic field and the rotor to induce rotor current. The second type is the synchronous motor, which does not rely on induction and as a result, can rotate exactly at the supply frequency or a sub-multiple of the supply frequency. The magnetic field on the rotor is either generated by current delivered through slip rings or by a permanent magnet. Other types of motors include eddy current motors, and also AC/DC mechanically commutated machines in which speed is dependent on voltage and winding connection.

Slip

If the rotor of a squirrel cage motor runs at the true synchronous speed, the flux in the rotor at any given place on the rotor would not change, and no current would be created in the squirrel cage. For this reason, ordinary squirrel-cage motors run at some tens of rpm slower than synchronous speed. Because the rotating field (or equivalent pulsating field) effectively rotates faster than the rotor, it could be said to slip past the surface of the rotor. The difference between synchronous speed and actual speed is called slip, and loading the motor increases the amount of slip as the motor slows down slightly. Even with no load, internal mechanical losses prevent the slip from being zero.

The speed of the AC motor is determined primarily by the frequency of the AC supply and the number of poles in the stator winding, according to the relation:
 N_{s} = 120F/p
where
Ns = Synchronous speed, in revolutions per minute
F = AC power frequency
p = Number of poles per phase winding

1.Induction Motor: So called because voltage is induced in the rotor (thus no need for brushes), but for this to happen,the rotor must rotate at a lower speed than the magnetic

field to allow for the existence of an induced voltage.


2.Synchronous Motor: So called because rotor tries to line up with the rotating magnetic field in the stator. It has the
stator of an induction motor, and the rotor of a dc motor.




3.Three Phase Induction Motor:
An electric motor converts electrical energy into a mechanical energy which is then supplied to different types of loads. A.c. motors operate on an a.c. supply, and they are classified into synchronous, single phase and 3 phase induction, and special purpose motors. Out of all types, 3 phase induction motors are most widely used for industrial applications mainly because they do not require a starting device.
A 3 phase induction motor derives its name from the fact that the rotor current is induced by the magnetic field, instead of electrical connections.
The operating principle of a 3 phase induction motor is based on the production of r.m.f.

The stator of an induction motor consists of a number of overlapping windings offset by an electrical angle of 120°. When the primary winding or stator is connected to a three phase alternating current supply, it establishes a rotating magnetic field which rotates at a synchronous speed.

The direction of rotation of the motor depends on the phase sequence of supply lines, and the order in which these lines are connected to the stator. Thus interchanging the connection of any two primary terminals to the supply will reverse the direction of rotation.
The number of poles and the frequency of the applied voltage determine the synchronous speed of rotation in the motor’s stator. Motors are commonly configured to have 2, 4, 6 or 8 poles. The synchronous speed, a term given to the speed at which the field produced by primary currents will rotate, is determined by the following expression.
Synchronous speed of rotation = (120* supply frequency) / Number of poles on the stator

4.Single Phase Induction Motor:
Single phase induction motors require just one power phase for its operation. They are commonly used in low power rating applications, in domestic as well as industrial use. This article is aimed at giving you a conceptual overview of working of single phase motors.


Thanks & Regards
techinventory

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Digital Clock On LCD (16x2) PIC16F1937 Used In FlowCode Programming and Simulation

In this sample project we are using FlowCode Simulation Software for Programming and Testing with PIC16F1937.It shows how to use and simulate and program LCD for use in different projects.In this Project we have created digital clock(Using two digit each for seconds minute and hours in 24 Hour format on LCD) on 16x2 Liquid Crystal Display.Varying the delay and write-erase sequence can be manipulated to get desired result.

Here is the Flow code program:
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Motor Types- Special Types of Motor

Motor Types- Special Types of Motor
1. Iron less or core-less rotor motorNothing in the principle of any of the motors described above requires that the iron (steel) portions of the rotor actually rotate. If the soft magnetic material of the rotor is made in the form of a cylinder, then (except for the effect of hysteresis) torque is exerted only on the windings of the electromagnets. Taking advantage of this fact is the core less or iron less DC motor, a specialized form of a PM DC motor. Optimized for rapid acceleration, these motors have a rotor that is constructed without any iron core. The rotor can take the form of a winding-filled cylinder, or a self-supporting structure comprising only the magnet wire and the bonding material. The rotor can fit inside the stator magnets; a magnetically soft stationary cylinder inside the rotor provides a return path for the stator magnetic flux.

Sending String with PIC16F877A Using Serial RS232 -Flowcode Simulation

Here we are using Flow-code Simulation Software for Programming and Testing with PIC16F877A for Simulation of this project .It shows how to send string and character through serial port.

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We are using Flow Code Simulation Software from MATRIX for Programming and Testing,You will find topics from Flow Code Programming and Simulation.You can request a topic here.If some links are not working please let me know.
Flowcode is one of the world's most advanced graphical programming languages for micro-controllers. The great advantage of Flowcode is that it allows those with little to no programming experience to create complex electronic systems in minutes. Flowcode is available in multiple languages and currently supports the PICmicro, dsPIC, PIC24, AVR/Arduino and ARM series of micro controllers.You can Download the Demo Software HERE.







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In this example of counting seconds using Timed Counter and Timer Interrupt.In this example we are using 7 Segment Display to display the results of calculation as seen in the examples code and videos.

Here is the MACRO for Interrupt Program Code:


Here is the Flow code MAIN program:
Complete list of projects:
Tutorials for Flow Code Programming and Simulation

Motor Types- DC Motor

Motor Types- DC Motor Shunt DC motor: The rotor and stator windings are connected in parallel.Separately Excited motor: The rotor and stator are each connected from a different power supply, this gives another degree of freedom for controlling the motor over the shunt.Series motor: the stator and rotor windings are connected in series. Thus the torque is proportional to I*I  so it gives the highest torque per current ratio over all other DC motors.It is therefore used in starter motors of cars and elevator motors.For more related information please refer:
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Motor Types- Special Types of Motor
Servo Motors
Stepper Motor

Stepper Motors Examples with PIC16F88 -Flowcode Simulation

We are using FlowCode Simulation Software for Programming and Testing with PIC16F88 for Simulation of this project .It shows how to use and simulate and program Stepper Motors for use in different projects.

For concept of Different types of Motors and their properties please see:
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Servo Motors
Here is the Flow code program:
Three Stepper are used to depict different configurations in which they can be used .Here functionality of auto off capability is used.It can be programmed to moved back to its original position if required.

More related Post :
Stepper motor Control using switches(Flow Code Simulation)
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Here is the complete list of projects:
Tutorials for Flow Code Programming and Simulation

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Tutorials for Flow Code Programming and Simulation


Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a technique used to encode a message into a pulsing signal. It is a type of modulation. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers,the other being MPPT.

Printing a Two line(String) message (LCD 16x2) PIC16F88 FlowCode Programming and Simulation

We have been using FlowCode Simulation Software for Programming and Testing with PIC16F88.It shows how to use and simulate and program LCD for use in different projects.In this Project we are printing two line message on 16x2 LCD Display.In First line "Ingenuity Dias" is continuously displayed and in second line "tech-inventory" is displayed.Varying the delay and write-erase sequence can be manipulated to get desired result.

Here is the Flow code program:
LCD(16x2) Display Related Programs
ADC-Voltage as Float(LCD with PIC16F1937)
ADC-Voltage as String (LCD with PIC16F1937)
ADC Sampling and outputting to a LCD(LCD with PIC16F1937)
Printing Number on 16x2 LCD Display with PIC16F88
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