A microcontroller is used in most of our daily required electronic gadgets like Speakers, Microwave Ovens, Lcd displays, Switches, Refrigerators, Telephones, Washing Machines and Automobile motor control systems. Microcontroller Projects are based upon an electronic integrated chip that forms the part of the embedded system. Here are some devices, which may make our life easier and secured at the cost of very exiguous investment.
- Water Level Controller-Motor Protector
It happens often that we forget to switch off motor which results in overflowing of water in overhead tanks in our homes. As the tank is kept on the terrace, we feel lazy to go up to check the water level in the tank. Therefore, to solve this problem a microcontroller based water-level controller scheme has come up which controls on/off conditions of the motor depending upon the water level in tank. A Lcd module is in case,granted to display water level in the tank. This Microcontroller Projects are designed in order to meet up the specifications like security of the motor from high voltage, low voltage, fluctuations of main power and dry running. The main components of this gismo are Pic microcontroller, sensor, motor etc.
- Secured Room entrance System
Access control systems are a superb example of Microcontroller Projects that allow only authorized persons to entrance a restricted area. When person unauthorized tries to enter the restricted area by entering invalid passwords continuously, the system locks itself and can be unlocked only by the scholar user. The system compromises of a numeric keypad, a solenoid-operated lock and Lcd display. The main electronic components are the Atmega 8535 microcontroller, 7806 regulator and Mct2E opto-coupler.
Microcontroller projects designed as gather entrance systems consist of of a memory card; an electronic device; at least one reader for detecting an action of the gather entrance system. A controller is other important part of any entrance system. It is operable to elaborate the detected action and stores data relating to the detected action in form of one or more log files in the memory, sends the one or more log files to the movable device, selects the movable gismo for the one or more log files and causes the one or more log files to be transmitted to the prime device. For example, if the action is related to entrance gained through a particular door, the door and potentially the person who gained entrance are stored in the control panel log. Also, if the action is related to a financial transaction, the data relating to the transaction including the amount and who performed the transaction are sent to preset destinations and are stored at the control panel. Sometimes control panels related with remote locations are not updated regularly. If a person's status changes from authorized to unauthorized, it is must to upgrade the control panel.