I am using UART for communicating 8 modules having LPC2148 microcontroller as a slave with another module having LPC2148 as master.But I am finding a constraint of wire length(I have read some articles on net which suggest a wire length of 2.6 mtrs for a baudrate of 56000bps) Can I replace this with MODBUS communication ?If yes where can I get information about modbus? ....etc

[:=Read Full Message Here=:]

CHAPTER 1
OVERVIEW OF 8051 MICROCONTROLLER
1.1 DESCRIPTION:
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of
Flash programmable and erasable read only memory (PEROM). The device is manufactured
using Atmel’s high-density nonvolatile memory technology and is compatible with the industrystandard
MCS-51 instruction set and pin out. The on-chip Flash allows the program memory to
be reprogrammed in-system or by a conventional nonvolatile memory programmer. By
combinin ....etc

[:=Read Full Message Here=:]

DESIGN A SPEED CONTROL OF DC MOTOR USING FUZZY LOGIC AND IMPLEMENT USING ATMEL IDS 6.0
AIM:
The aim of the project is to design a DC Motor using Fuzzy Logic using VHDL tools and implement it in programmable FPGA.
THEORY:
There are many conventional techniques for the Speed Control of DC motor. Some techniques like fuzzy control involve modeling of control of skins of a human expert and hence the present work is on a fuzzy based speed control strategy for DC motor. The contr ....etc

[:=Read Full Message Here=:]

Please help me to interface rishabh energy meter EM 1340 with Arduino Uno. I have tried using ModbusMaster Library and SimpleModbus Library for coding in arduino. I have build RS485 to TTL converter using MAX485 IC and circuit which is given in SimpleModbus Library . I can share the code with you . My problem is that i am always getting Timeout Error . I checked on DSO the query at the converter end is not what is accepted , I mean when arduino sends query the message in form of square wave but at converter end their is loading . Please tell me ....etc

[:=Read Full Message Here=:]

Authors:
N.S.Sakthivel Murugan
Dr Nirmal Kumar
Abstract:
Among the various power quality problems, the voltage sags, are attracting a large amount of attention of researchers from industry. DVR gives the solution to the above mentioned problem. The main function of DVR is to mitigate the voltage sag. It controls voltage applied to the load by injecting voltage of compensating amplitude, frequency and phase angle to the distribution line. The DVR is primarily responsible for restoring the quality of voltage delivered to the end user ....etc

[:=Read Full Message Here=:]

i want to flowchart for modbus communcation from master to slave.
....etc

[:=Read Full Message Here=:]

modbus protocol seminar report ....etc

[:=Read Full Message Here=:]

Modbus Implementation PC to Industrial Devices

Presented by
D.PRADHYUMNA (06M91A0426)
C.MEHAR PRASAD (06M91A0421)
INTERNAL GUIDE: Ms. REKHA
EXTERNAL GUIDE: Mr.MAHESH PATIL


Introduction
Modbus communication interface for a multidrop network based on a master/client architecture.
It moniters and program devices to communicate between intelligent devices and sensors and instruments,to monitor the field devices using PCs and HMIs.
Modbus protocol defines a message st ....etc

[:=Read Full Message Here=:]

we are implementing modbus protocol between pc and controller c8051f340 can u tell what are requirements needed?
....etc

[:=Read Full Message Here=:]

Atmel Microcontrollers CAN Tutorial


Mature Standard
CAN protocol more than 14 years
....etc

[:=Read Full Message Here=:]