Circuit schematic for the classic PIC serial programming cable. There is also a high resolution version of the image, and a Scalable Vector Graphics source file for printing. Please note that the SVG file might not display properly in some browsers. Microcontrollers generally require special hardware for programming them from a computer. The cable
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can be as simple as a few wires, resistors and diodes connecting the parallel printer port to the microcontroller hardware, or it can contain a microcontroller of its own to mediate between the computer software and the microcontroller. I`ve found this simple circuit to be a good compromise. It works via the serial port of the PC and is capable of programming most kinds of PIC microcontrollers. Typically it is used to configure and load a bootstrap program into a new blank microcontroller. Once the bootstrap program is in place, the serial programmer may be dispensed with and the computer can communicate with the bootstrap program to update and interrogate the microcontroller via a normal serial cable. The software for programming PIC microcontrollers with this is in these files: serial. lisp and controller. lisp They have been extensively used with PIC16F84 microcontrollers and more recently they have been enhanced to take advantage of the features of PIC16F88 microcontrollers.
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The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
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This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
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