Today, it is very easy to build our dream projects within the stipulated time, because almost all supporting components & circuits are readily available in pre-wired and compact modules. A short tour ...

Here is a motor speed sensor module, the major goal is to check the rate of an electric motor. The module can be used in association with a microcontroller for motor speed detection, pulse count, ...

Click to open image viewer. This is a circuit module from an IBM 9020 computer. The components on this module were mounted on small ceramic squares, and soldered to a circuit board. IBM caled the ...