8051 PWM C Program with 50 percent duty cycle

PWM(pulse width modulation) generation guide using 8051. 8051 PWM generation What is PWM? PWM(pulse width modulation) is a technique of generating pulses(square wave) having a specific on time and off time. Main use of PWM is to control power mostly in motor speed control. PWM is also used to perform DAC(digital to analogue) operation. How […]

Traffic lights control system:Proteus Simulation

Hello readers are you looking for a simple and sober Traffic Lights control system project? Well, your search for traffic lights controlling ends here. This is a really simple technique of  traffic lights control with minimum components.  This project is a very simple and self explanatory, only two flip-flops and one and gate is used for traffic […]

Speed control of DC motor by PWM in Proteus simulation

Hello friends here is a proteus simulation of speed control of DC motor with the help of Pulse width modulation (PWM) control, PWM signals are generated by 8051 microcontroller.   As we have discussed earlier that proteus is a really good simulation software for beginners and 8051 is the most basic among all microcontroller so […]

What is an Industrial limit switch?

What is an industrial limit switch? The standard limit switch is a mechanical device that uses physical contact to detect the presence of an object (target). (opposite to Proximity sensors) When the target comes in contact with the actuator, the actuator is rotated from its normal position to the operating position. This mechanical operation activates contacts within the switch body. […]

What is PLC?

What is PLC? Control engineering has evolved over time. In the past humans were the main method for controlling a system. More recently electricity has been used for control and early electrical control was based on relays. These relays allow power to be switched on and off without a mechanical switch. It is common to use relays to […]

Speaker interfacing with 555 Proteus simulation

Hello Friends we are back with another proteus simulation. This is buzzer interfacing with 555 timer proteus simulation. Here a simple Astable multivibrator circuit is made with 555 timer IC and the output is given to the speaker. the frequency of sound is generated from the help of capacitor C2 and pot RV1 we can […]

Inductive Proximity Sensors

An inductive proximity sensor

What is inductive proximity sensor? Inductive proximity sensor is the sensor which detects metal object without physical contact with metal. (opposite to Limit Switch) The sensor incorporates an electromagnetic coil which is used to detect the presence of a conductive metal object. The sensor will ignore the presence of an object if it is not metal. Block […]