Circuits & Schematics Microcontrollers Usage: pic - 7

61. 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 ...
    20-05-2011

62. 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 ...
    19-05-2011

63. 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 ...
    14-05-2011
64. 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 ...
    30-04-2011
65. 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 ...
    22-04-2011
66. 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 ...
    20-04-2011
67. 2-Wire Keypad Interface Using a 555 Timer. Part 2 Frequency and Pulse outputs, Significance of Rp and Cp values, Role of Rc resistor
    Circuits Microcontrollers Usage
    Part 1. Theory and Schematic Frequency and Pulse outputs Click to enlarge There are two outputs in this circuit. One is the frequency output derived directly from pin 3 that is fed to the T0CKI (Timer0 input) pin of a PIC16F628A microcontroller for ...
    18-04-2011
68. Digital Temerature Sensor
    Circuits Measurement Microcontrollers Usage
    by jakeselectronics This circuit is a Digital Temerature Sensor using a Dallas '1-wire' DS18B20 Digital Thermometer How It Works The DS18B20 is a direct-to-digital temperature sensor using exclusive 1-Wire bus protocol that implements bus ...
    07-04-2011
69. Programmable Window Comparator Uses A Single Reference
    Circuits Measurement Microcontrollers Usage Beginners Microchip PIC12F675
    .. that must support multiple characteristics. Also, the 10-bit ADC features of the controller can be reconfigured for other PIC controller products, such as the 12HV615 .
    06-04-2011
70. Heart rate measurement from fingertip. Part 3. References, notes, using the device.
    Circuits Medicine Microcontrollers Usage
    Part 1. Schematic Part 2. Software Output The use of this device is very simple. Turn the power on, and you will see all zeros on display for few seconds. Wait till the display goes off. Now place your forefinger tip on the sensor assembly, and ...
    28-03-2011

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