Circuits & Schematics Microcontrollers Usage: clock - 6

51. Music player built on microcontroller AT91SAM7S256 with ARM core
    Circuits Audio Microcontrollers Usage
    .. Support for the card via the SPI is held by only 3 pins of the microprocessor - lines of data MISO, MOSI, and the clock CLK line. The card requires a power supply voltage of 3.3V, which is equal to the voltage of power processor ...
    20-10-2010

52. Cellphone Operated Land Rover. Part 1. Schematic
    Circuits Microcontrollers Usage RC Modeling
    .. to the arithmetic logic unit, allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code-efficient. Outputs from port pins PD0 through PD3 and PD7 of the ...
    12-12-2010

53. Solar Recorder. V1.0.
    Circuits Measurement Microcontrollers Usage Solar
    .. 4777 WH/m 2 . Hardware Schematic The complete hardware schematic is shown in Figure 1. The MCU is PIC18F458 running at 4MHz clock. The SPI port RC2-RC5 is used to interface the MMC card. Since the memory card is +3.3V logic, we use CMOS ...
    19-01-2011
54. Dot matrix LED running display. Part 1. Schematic description
    Circuits Microcontrollers Usage
    .. Vasilev Features LED dot matrix display 40×7; Display of clock, calendar, inside and outside temperature, text messages; Automatic Daylight Savings Time; Capability of ...
    23-01-2011
55. Dot matrix LED running display. Part 2. Construction.
    Circuits Microcontrollers Usage
    .. controls); Direct buttons from 0 9 selects predefined messages. From messages 1 to 4 display will show static message of clock, date, outside and inside temperature, respectively. From 5 to 9 and 0 the display shows all available data ...
    01-02-2011
56. Heart rate measurement from fingertip. Part 2. Software
    Circuits Medicine Microcontrollers Usage
    .. Project: Measuring heart rate through fingertip Copyright @ Rajendra Bhatt January 18, 2011 PIC16F628A at 4.0 MHz external clock, MCLR enabled */ sbit IR_Tx at RA3_bit; sbit DD0_Set at RA2_bit; sbit DD1_Set at RA1_bit; sbit DD2_Set at ...
    14-03-2011
57. Use An On-Chip UART To Detect An Edge-Triggered Interrupt
    Circuits Microcontrollers Usage
    .. (that is, a low-going edge in the input signal), the UART interprets this as the arrival of a start bit. The baud-rate clock goes on sampling the input and senses a byte value of 0x00 with a “break error” bit set. The error ...
    11-05-2011
58. HVSP fuse resetter for ATtiny13, ATtiny25/45/85
    Circuits Microcontrollers Usage
    .. point). For hvsp purpose, we need to have 6 io pins from t 2313. We need to supply 5V Vcc, 12V to RESET, SCI (serial clock input), SII (serial instruction input), SDI (serial data input) and SDO (serial data out). for that we employ ...
    22-05-2011
59. Drive 16 LEDs with one I/O line
    Circuits Microcontrollers Usage
    .. uses two 8-bit serial-input/parallel-output shift registers. The microcontroller ATtiny13 drives the shift registers’ clock inputs. That signal also passes through an RC filter and drives data inputs A and B. A 100-kΩ resistor, ...
    09-06-2011
60. Experimenter's board for Enhanced Mid-Range PIC microcontrollers (PIC16F1827 and PIC16F1847). Part 1. Theory and Schematics
    Circuits Microcontrollers Usage
    .. a jumper selection for RA5/MCLR pin, which can be used as external reset or a general purpose input pin (RA5). The system clock for PIC16F1827/47 can be derived using an external ceramic resonator. There is a 3-pin slot for that. Taking ...
    28-06-2011

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