Monthly Archives: March 2010
Display Interfacing
Most of the microprocessor controlled instruments and machines need to display letters of the alphabet and numbers to give directions or data values to users. This information can be displayed using CRT , LED or LCD displays. CRT displays are … Continue reading
Interfacing Multiplexed Display
To solve the problems of the static display approach, multiplexed display method is used. Here 4 seven segment displays connected using multiplexed method. Here common anode seven segment LEDs are used. Anodes are connected to +5V through transistors. Cathodes of … Continue reading
Disadvantages of Software Approach
In software approach to CPU has to look after digit selection in synchronosim with the data for specific digit. In other words, CPU has to give digit data on one port and then the digit selection bit pattern on the … Continue reading
do this when your internet connection lost
We suffer a lot when our internet connection fails. We don’t know when it downs, when it connects. If happens like this we, re-starting our system. After that we scold out internet providers(definitely i won’t). Before that you can do … Continue reading