http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-07T16:55:51-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t10632.html 2009-01-07T16:55:51-08:00 hi sirim doing the home automation project, i created it as a simulation using proteus v7 , i attached the simulation files so u would know what im talking abt.the thing is that the TX on pin 11 blinks non stopping, we i run the simulation and when i used terminal after connecting to server successfully, its receives crappy text continuously.i also notice that if disconnected pin 16 or 17, the blinking move to pin 17. although im sure that the connections are fine and the hex, because the lcd shows the welcoming massage "read massages" and respond to switches.so could u show me what did wrong so that the tx is not responding backplz replay as soon as possiblethankx alot ha.zip http://www.8051projects.net/forum-t10632.html 2009-01-07T16:55:51-08:00 Ajay You did not set the COMPIM settings properly. See the baud rate is too high. change it to 9600 it will work properly. http://www.8051projects.net/forum-t10632.html 2009-01-07T16:55:51-08:00 ozmosis did try that but still TX blinks like crazy with weird txt, any else i could do? http://www.8051projects.net/forum-t10632.html 2009-01-07T16:55:51-08:00 ozmosis one more thin also, i did the project as hardware also, and im getting ERROR, just like the picture says, im sure that the MCU is programmed proparly because the lcd displays "read massage!", so .... http://www.8051projects.net/forum-t10632.html 2009-01-07T16:55:51-08:00 Ajay make sure you have selected the right com port in HAserver software.do this after you are connected to servertype command "com?" to get current com port.to open com port 1 type "com1"to open com port 2 type "com2"