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تاریخ: دو شنبه 30 بهمن 1391برچسب:,
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تاریخ: دو شنبه 30 بهمن 1391برچسب:,
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تاریخ: دو شنبه 30 بهمن 1391برچسب:,
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این پروژه ی خودمه که برای پروژه ی پایانی کاردانی دادم و نمره 19.5 گرفت از یه استاد سخت گیر.هرکیم سوال داشت بپرسه

 

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تاریخ: دو شنبه 9 بهمن 1391برچسب:,
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سرفصل ها

دی وی آر چیست؟

DVR چیست؟

انواع دستگاه های DVR

مزایای استفاده از DVR در سیستم نظارت تصویری

سیستم ضبط

سایز و فرمت فشرده سازی ضبط تصاویر



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تاریخ: شنبه 19 فروردين 1391برچسب:,
ارسال توسط امیر عیوضی
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[تصویر: www.irpdf.com(8571).gif]

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تاریخ: چهار شنبه 23 آذر 1390برچسب:,
ارسال توسط امیر عیوضی


What’s a Microcontroller?
by Parallax.com

What’s a Microcontroller? is a first-step BASIC Stamp 2 tutorial, introducing the essentials electronics and programming side by side. You will write PBASIC programs and build both simple and advanced breadboard circuits with LEDs, pushbuttons, potentiometers, light sensor, a servo, and much more! The text is designed to accommodate a wide range of ages and skill levels and is a great resource for STEM programs. This ebook is for anyone interested in getting started with microcontrollers and electronics.



 



تاریخ: شنبه 18 تير 1390برچسب:,
ارسال توسط امیر عیوضی
ارسال توسط امیر عیوضی


 

An Even Better LC Meter Based on Atmel AVR  ATTINY861

A Pretty Good LC Meter Based on an AVR (ATtiny2313, AT90S2313)

A Photocell Amplifier for Comparative Light Measurements (analog only)

A 10 Bit LED Digital Panel Meter With Auto Ranging Based on ATMEGA 8   ATMEGA8

An RF Field Strength Meter Using A Biased Schottky Deterctor and  A Moving Coil Meter

An Isolated Variable AC Mains Transformer

MAX038 Function/Sweep Generator with Markers (ATtiny2313, AT90S1200A)

1.000 kHz Sine Wave Generator  ATTINY2313/AT902313/ATMEAG8515/AT908515, etc.

Battery Voltage Checkers 

LC Determination by Resonant Frequency Measurement (ATtiny2313, AT90S2313)

Inductance meter for RF Inductors

HF/VHF/UHF Test Oscillator

A Little More Serious Frequency Meter/Counter(ATtiny2313, AT90S2313)

A 300 MHz  Prescaler and 30 MHz preamp for A Little More Serious Frequency Meter

Frequency Meter and Pulse Generator (ATtiny2313, AT90S2313)

Digital Lock-in Milliohmmeter (ATtiny2313, AT90S2313)

HF AC Millivoltmeter adapter

Precision Audio Frequency Peak Detection Probe

Digital RF Field Strength Indicator (ATtiny2313, AT90S2313)

A Field Strength Indicator -Analog only.

RF Field Strength Probe (AT90S1200A)

LTD - Low Cost Telemetering Device; ATMega8 scanning voltmeter with Morse Code output (ATMega8)

Waveform Monitor with LCD (ATtiny2313, AT90S2313)  

Simple LM335 thermometer

A Precision Portable Voltage Reference

AC Current Probe for Oscilloscope Use.  

Low Capacitance Scope Probe Adapter 
 

LED Driver circuits

 


LCD Drivers (firmware)

 


RF and Communications
 

A 330MHz Remote Control With A Simulated Princeton Technolog PT2264 ATTINY2313

 
A Simple FM Stereo Transmitter    (ATTINY12, ATTINY25, ATtiny2313, AT90S2313, AT90S232, or nearly any other CMOS microntroller-Yes probably even a PIC!)

FM Transmitter With Crystal Referenced PLL Frequency Control Using LMX1601 (ATtiny2313, AT90S2313) 

FM Broadcast Audio Transmitter


100 MHz modulated RF source for FM Band

Battery operated FM rebroadcast transmitter

100 MHz modulated RF source for FM Band

90 MHz voltage controlled oscillator for FM Band

Minimum Mass Wireless Data Coupler


Terminal Interface with Minimum Mass Wireless Coupler (ATtiny2313, AT90S2313)

Scanning Voltmeter with Minimum Mass Wireless Coupler ATMega8)

Frequency Meter with Minimum Mass Wireless Coupler (ATtiny2313, AT90S2313)

LCD Display with Minimum Mass Wireless Coupler  (ATtiny2313, AT90S2313)

Tiny Tuned Loop Antennas for the Minimum Mass Wireless Coupler

Digital wireless for the bench top (ATtiny12) 

RS-232 to Wireless Instrument Data Channel (ATtiny2313, AT90S2313)

Frequency meter with wireless Data Channel(ATtiny2313, AT90S2313

4 MHz amplitude modulated RF source

1 W Experimental Output and 1 Meter Loop Antenna for 187 kHz (Lowfer)

1750 Meter Lowfer Band amplitude modulated RF source (ATtiny2313, AT90S2313)

A Dual Mode Superhet/Direct Conversion AM receiver for 181.818 kHz (Lowfer) (ATtiny2313, AT90S2313)

MK-484 Receiver Chip Evaluation Board for AM and Lowfer bands.


 

 

Programming Tools and Techniques

AttoBasic Byte-Wide interpreter for ATtiny2313 and AT90S2313

AttoBasic AT90S8515/ATMEGA8515 and ATmega163

AttoBasic WITH 32K OF EXTERNAL SRAM

AVR Firmware Monitor Program   (AVR Controllers with on-chip UART)

Minimum Mass Waveform Capture with AVR       (AVR controllers with RAM)

DS: Firmware based protocol for low priority data transfer

DS: Test and development tool for DS interface (ATtiny2313, AT90S2313)

DS: Clock/Calendar/Alarm with EEPROM-based interpreter and DS Interface (ATtiny12)

DS: 3 channel 8 bit EEPROM DAC with DS interface (ATtiny12)

ATtiny12 Fuse Restorer (AT90S1200A)

EEPROM Driver for 24LC64, 128, and 256 (AVR Controllers)

8 Channel PWM PWM Code (AVR Controllers)

AVR Serial Programmer (AT90S1200A, ATtiny2313, AT90S2313)

AVR 8 and 20 pin programming adapter

Lazy ISP Adaptor for Socketed AVR ISP Controllers

Decoding 4 buttons with 2 I/O pins   (Controllers with tristate I/O ports)

 


          An Experimental Triac Lamp Dimmer and Motor Speed Control Using A Simulated Diac


Specialty Projects

Tips, Notes, and Techniques

 

Toroid and Ferrite Bead Winding Notes

Transistor_matching   (New -January 2011)

 




تاریخ: سه شنبه 13 ارديبهشت 1390برچسب:,
ارسال توسط امیر عیوضی