Circuits & Schematics: pic - 8

71. Experimenter's board for Enhanced Mid-Range PIC microcontrollers (PIC16F1827 and PIC16F1847). Part 1. Theory and Schematics
    Circuits Microcontrollers Usage
    .. for PIC16F628A. Last month, Microchip Technology Inc. announced the latest addition to its Enhanced Mid-Range core 8-bit PIC microcontroller (MCU) family by introducing PIC16F(LF)1847 . When I went through its features I was tempted. The ...
    Jun 28, 2011

72. Increase efficiency in embedded digital-I/O lines
    Circuits Microcontrollers Usage
    .. bus. This method needs no driver. You can apply it to any programmable device with LED-driving capabilities, such as small PIC or Atmel microcontrollers. Figure 1. Common-anode and common-cathode LED displays can connect to the same bus In ...
    Jun 22, 2011

73. Eight-digit counter works with common anode or common cathode
    Circuits Microcontrollers Usage
    Charaf Laissoub Replace classical counters with a microcontroller. A classical design for directly driving eight seven-segment LED displays requires as many as 15 I/O lines. Previous Design Ideas have described many approaches for using a maximum ...
    Jun 10, 2011
74. Arrange LEDs as seven-segment displays
    Circuits Microcontrollers Usage
    .. Laissoub, France If you have a pin-limited PIC microcontroller, you can still produce a seven-segment display When you need to drive three seven-segment LED ...
    Jun 6, 2011
75. Basics of LED dot matrix display. Part 2. Circuit Setup and Software
    Circuits Microcontrollers Usage Beginners
    .. is not sufficient enough. In mikroC, the variables are saved in RAM and constants are stored in program memory. So, if your PIC does not have enough RAM, you can define a constant array to store the row values so that a part of the program ...
    May 20, 2011
76. Basics of LED dot matrix display. Part 1. Theory
    Circuits Microcontrollers Usage Beginners
    .. We will cover the animation stuff in next tutorial. I am using the Microchip PIC18F2550 microcontroller on the StartUSB for PIC board for demonstration, but this technique is applicable to any other microcontrollers that have sufficient I/O ...
    May 19, 2011
77. How to make a contact-less digital tachometer using IR-light reflection technique. Part 2. Circuit setup
    Circuits Measurement Microcontrollers Usage
    .. using IR-light reflection technique. Part 1. Theory Circuit setup As I mentioned earlier, I am using StartUSB for PIC board for demonstration of this technique, and therefore, I am not providing the detail circuit diagram of this ...
    May 14, 2011
78. How to make a contact-less digital tachometer using IR-light reflection technique. Part 1. Theory
    Circuits Measurement Microcontrollers Usage
    .. terminals is proportional to the speed of the shaft. Today, we are going to make a digital tachometer based on a PIC microcontroller that requires no physical contact with the rotating shaft to measure its rotational speed. The ...
    Apr 30, 2011
79. 2-Wire Keypad Interface Using a 555 Timer. Part 3 Connecting to the PIC16F628A, Software, Demonstration
    Circuits Microcontrollers Usage
    Part 1 . Theory and Schematic Part 2 . Frequency and Pulse outputs, Significance of Rp and Cp values, Role of Rc resistor The two outputs from the keypad are connected to the PIC16F628A microcontroller. The pulse output goes to RA2 pin whereas the ...
    Apr 22, 2011
80. SMS home alarm system
    Circuits Security Wireless Microcontrollers Usage
    .. how easily you can build your own home-made SMS alarm system, with minimum expenses. All you need to have is StartUSB for PIC Board , Smart GM862 with Telit GM862 module and antenna, one SIM card and a few wires. Start USB for PIC Board is a ...
    Apr 20, 2011

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