Microcontrollor AT89C2051 and H-Bridge driver L293D were used  to control direction and speed of motor. Circuit diagram of Infrared sensors and comparators. Position of sensors,  left hand side is side view and right hand side is top view. Software Software for write to...

The information listed here is to assist Network Administrators in the color coding of Ethernet cables. Please be aware that modifying Ethernet cables improperly may cause loss of network connectivity. Use this information at your own risk, and insure all connectors and cables are modified in...

*already test this circuit. It work well. Figure 1. RF 4 channels remote Transmitter This is a very simple RF transmitter circuit that consists of the Holtek HT-12E encoder chip and AM 418MHZ-transmitter module (WZ-X01). Using the hybrid RF xmit/receive modules make building the RF...

Here’s something for broadband people that will really speed Firefox up: 1.Type “about:config” into the address bar and hit return. Scroll down and look for the following entries: network.http.pipelining network.http.proxy.pipelining network.http.pipelining.maxrequests Normally...