Basic micro-controllers circuit
| Basic micro-controller circuit scehematic Explanation of the circuit: The micro-controller in this schematic is a pic18f452 of the microchip serie pic18f. But the circuit is fitting most micro-controllers with slight changes in the pins connections. The circuit receives voltage from a 9v battery. A diode protects the circuit from inverted voltage connections. A led lights the voltage is supplied and the switch is closed. The current then passes through a voltage regulator which outputs 5v which is appropriate voltage for the micro-controller. This micro-controller has 2 pins VDD and 2 VCC. One is for digital outputs and the other for analog. In order to work the micro-controller has to be connected to an oscillator. In this case The oscillator is a quartz crystal but there are other possibilities such as RC circuit. This is the basic connection of a micro-controller. From here on after the micro-controller is burned with a program each of the pins can be an output or an input. Some pins can function in analog ways as well. Links to micro-controller burners: http://extremeelectronics.co.in/tools/usb-pic-microcontroller-programmer/ http://www.8051projects.info/programmer.asp back to basic electronic circuits for robotics page |
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