Posted on Feb 6, 2014

This is example project in which the 8051 is Producing PWM outputs for seperate two channels, The PWM can be used to control the phase angle of SCR or triace for power control of any AC load like Heater Motor Fan, this project can be used as heater power controller. The shift registers are attached with microcontroller 8051 to increase the number

Click here to download the full size of the above Circuit.

of input and out put lines for the interfacing of a large number of external devices. Interface a large Load bank of solid stat relays with microcontroller 8051 and switch ON OFF through computer via serial interface RS232 The microcontroller 8051 has 32 IOs lines, and some times more external devices are required to attach with 8051 for controlling purpose. In this project Interface of 50 relays with microcontroller for serial control through PC shift register are used for io port expansion. Elevator or lift controller using microcontroller 8051 for three floors. This elevator controller based on microcontroller 8051 and can be used for the lift of passengers or cargo. This is example project for lift controller can be easily modified to use any other microcontroller. GSM based security system for home and office, a SMS alert will be done on any problem at security. The SMS based security system uses microcontroller 8051, it is interfaced with GSM modem or GSm mobile for wrieless communication.

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    LED runner with 74LS163
    B-Field Measurer
    12V 50W Switching Regulator by UC3844N
    make these simple cheap home burglar
    inductance meter adapter circuit
    300w Mosfet Linear Amplifier For 50 Mhz
    simple sound to light converter schematic
    Circuit RF Amplifier
    88-89 Prix 3-Piece AM/FM/Cassette/EQ
    Serial mouse interface for Commodore