The work presented in this paper achieves the speed control of separately exited DC motor by varying the armature voltage using chopper circuit. Speed can be adjusted from below and up to the rated ...

This is a simple and very effective project circuit which helps to control the speed of a DC motor using pwm and microcontroller. In many applications, it is important to control the speed of DC motor ...

Circuit diagram for RFID bassed attendance system project is shown above. In the circuit, LCD is connected in four bit mode with 8051 microcontroller. LCD’s RS, RW and EN pins are directly connected ...

At this point, we have a good idea about the working of a PID controller and we also know our end objective. Based on that we have decided to use an Arduino and some other complementary components to ...

The circuit regulator is a 7805, 5 V, integrated circuit IC, labelled IC1 in the circuit diagram. This acts as power-on reset for the ATmega 328P microcontroller. From the output terminal of IC1, a ...

[fahadshihab], a young tinkerer, shared his circuit design for a simple remote control using 555 timers. Using a 555 calculator, he designed a clock circuit that would run at 11.99 Hz. Two transis… ...

Circuit diagram of the low-cost LPG detector is shown in Fig. 2. It is built around step-down transformer X1, two rectifier diodes 1N4007 (D1 and D2), a 1000µF capacitor (C1), 7805 voltage regulator ...

This application note describes the operation of a general- purpose, microcontroller-based Serial Port Interface (SPI) boot circuit. This is a low cost solution for users who need to modify some of ...

Circuit and working of the equipment controller The circuit diagram is shown in Fig. 2. It consists of microcontroller AT89C2051 (IC1), MAX232 driver (IC2), eight opto-TRIAC drivers MOC3041 (IC3 ...

In [9] , PIC18F452 microcontroller based home security system has been designed without GSM technology. In this paper, ATMEGA16 microcontroller based home security system with GSM technology has been ...

The TMPM380 MCU was specifically designed for the digital control of high-current circuits commonly found in industrial or appliance applications. Powered by a 40 MHz ARM® Cortex™-M3 processor core ...

The work presented in this paper achieves the speed control of separately exited DC motor by varying the armature voltage using chopper circuit. Speed can be adjusted from below and up to the rated ...