wiegand converter circuit with LCD interface
#wiegand
#converter
#LCD
#interface
#data communication
#microcontroller
#serial communication
#display
#embedded systems
#protocol
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Microcontroller interfacing with RS 232
Standard serial interfacing of a microcontroller (TTL) with a PC or any RS232C standard device requires a TTL to RS232 level converter. A MAX232 is used for this purpose. It provides a 2-channel RS232C port and requires external 10µF capacitors.
The...
Robo Atmega328p project
This project was designed to introduce a friend to microcontrollers and circuits using various functionalities and spare parts. A PS2 numpad was utilized as the key entry mechanism, which was found at a thrift store and included the necessary connector....
Ultra Low Power LCD Indicator
This circuit serves as an ultra-low power replacement for multiple LED on-off indicators. It also has the advantage of being easy to read in full daylight. With the parts shown, it is possible to display four bits of information. The...
Water Level controller
The microcontroller-based water level controller and motor protector manages the on and off states of the motor based on the water level in the overhead tank (OHT). It regulates the tank's water level through a microcontroller, thereby providing automatic protection...
knight Rider
A light computer has been developed that simulates the scanning effect seen in the KITT car from the TV series Knight Rider. The design utilizes a microcontroller, specifically the PIC16F84A, instead of the commonly used CD4017 counter IC. This choice...
measurement conductance cell constant
A small transmitter board interfaces with a microcontroller and conductivity probe to measure liquid conductance and conductivity. Precise equations and measurements are provided for this microcontroller-controlled conductivity meter.
The described circuit consists of a compact transmitter board that serves as an...
LCD Module Control with PC
This simple circuit controls a popular 2-line x 16-character LCD by a PC via printer port. It doesn't use the Bi-directional feature found on newer printer ports, thus it should work with most, if not all, Parallel Ports. These LCD...
ON/OFF button using Microcontrollers
Using a switch to power up your microcontroller projects may not be a good idea if you need to "wake" the PIC during some events. For example: A metal detector sends a pulse indicating a car is ready to enter...
Microcontroller based College Automation System
This project is a microcontroller-based college automation system aimed at addressing the challenges faced in educational institutions. It replaces the conventional notice board with an automated device that allows users to both hear and read the information being announced through...