UMBC, ELEN 216

Excerpt: ... ElEn 216 PROGRAMMING AND INTERFACING II Electronic Engineering Technology Fall 2005 Course Outline Lecture 3 hrs/wk Lab 3 hrs/wk Professor: Office: Office Ph: Description: This course deals with the architecture, programming, and interfacing of microcontrollers. Hardware topics include memory, input/output, counters/timers, serial communications and interrupts. Interface projects will be written in Assembly and C and include switches, LEDs, A to D converters, stepper motors, and liquid crystal display . Major Topics: 1. 2. 3. 4. 5. 6. 7. 8. Nadir Ould-khessal C330B (250) 762-5445 ext 4497 Prerequisite: ElEn 216 Co-requisite: None email:nkhessal@okanagan.bc.ca An introduction to Microchips 18F452 architecture and operation Assembly and C programming Leds, Switches, and stepper motor interfacing Counters/Timers Interrupts A/D and D/A interfacing Serial Interfacing Liquid Crystal display Objectives: 1. 2. 3. 4. 5. Discuss and compare the architectural differences between a microcontroller and a microcomp ...

UMBC, ELEN 216

Excerpt: ... ElEn 216 PROGRAMMING AND INTERFACING II Electronic Engineering Technology Fall 2006 Course Outline Lecture 3 hrs/wk Lab 3 hrs/wk Professor: Office: Office Ph: Description: This course deals with the architecture, programming, and interfacing of microcontrollers. Hardware topics include memory, input/output, counters/timers, serial communications and interrupts. Interface projects will be written in Assembly and C and include switches, LEDs, A to D converters, stepper motors, and liquid crystal display . Major Topics: 1. 2. 3. 4. 5. 6. 7. 8. Objectives: 1. 2. 3. 4. 5. Discuss and compare the architectural differences between a microcontroller and a microcomputer Use system software to edit, assemble, execute, simulate, and debug program modules Describe the microcontrollers architecture and I/O capabilities. Implement interfaces to various peripherals using serial, parallel, and interrupt techniques Analyze, troubleshoot, and design microcontroller systems An introduction to Microchips 18F452 architecture ...

Lincoln U. CA, INFO 3321

Excerpt: ... The Basics of Carbon Nanotube Displays Group 9 Jeffrey Cook and Derrick Williams Key Words: Nanotube LCD Liquid Crystal Display Technology Fullerene Nanotube A hollow, cylindrical or toroidal molecule made of one element, usually carbon. Nanotubes are being investigated as semiconductors and for uses in nanotechnology. A microscopic tube whose diameter is measured in nanometers. LCD Liquid Crystal Display a method of displaying readings continuously, as on digital watches, portable computers, and calculators, using a liquid-crystal film, sealed between glass plates, that changes its optical properties when a voltage is applied. Technology The application of science, especially to industrial or commercial objectives. The scientific method and material used to achieve a commercial or industrial objective. Electronic or digital products and systems considered as a group Fullerene any of a class of molecules of carbon having a roughly spherical shape What is a Carbon Nanotube? ...

Iowa State, PHYSICS 112

Excerpt: ... ffraction by a Single Slit or Disk Diffraction Grating The Spectrometer and Spectroscopy Units of Chapter 24 Interference by Thin Films Michelson Interferometer Polarization Liquid Crystal Display s Scattering of Light by the Atmosphere 24.1 Waves Versus Particles; Huygens Principle and Diffraction 24.2 Huygens Principle and the Law of Refraction Huygens principle: Every point on a wave front acts as a point source; the wavefront as it develops is tangent to their envelope 1 24.2 Huygens Principle and the Law of Refraction Huygens principle can also explain the law of refraction. As the wavelets propagate from each point, they propagate more slowly in the medium of higher index of refraction. This leads to a bend in the wavefront and therefore in the ray. 24.2 Huygens Principle and the Law of Refraction The frequency of the light does not change, but the wavelength does as it travels into a new medium. (24-1) 24.2 Huygens Principle and the Law of Refra ...

The University of Akron, EE 470

Excerpt: ... ts are due one week after the laboratory exercise is to be completed. The exception is the final informal report that is due Friday of the week assigned Week 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Date (Wed/Thur) 29/30 Aug 05/06 Sep 12/13 Sep 19/20 Sep 26/27 Sep 03/03 Oct 11/12 Oct 19/20 Oct 24/25 Oct 31/01 Nov 07/08 Nov 14/15 Nov 21/22 Nov 28/29 Nov 03/07 Dec Topic MPLAB IDE & C-30 Tutorial Temperature Measurement Liquid Crystal Display Liquid Crystal Display Continued PWM Speed Measurement Feedback Control Swipe Card Reader Swipe Card Continued & Phase 0 Phase 1 Phase 2 Phase 3 No Laboratory Meeting Phase 4 Practicum2 Total Type Tutorial Polling Time Delay Time Delay Compare/PWM ADC DSP Interrupt Interrupt Algorithm Research Protocol Research User Specified Not Applicable User Specified Not Applicable Graded Materials Postlab Quiz Prelab & Informal Report Not Applicable Postlab Quiz & Formal Report Postlab Quiz & Formal Report Informal Postlab Quiz & Formal Report Prelab Post lab Quiz & Formal Report Notebook ...

Allan Hancock College, ELEC 4605

Excerpt: ... assign the pointer to the rst address. The pointer can then be dereferenced by treating it as a pointer to an array. An example of this is as follows: x d a t a v o l a t i l e char LCD = 0 x0000 ; / / D e c l a r e p o i n t e r i n t o e x t e r n a l / / d a t a memory s t a r t i n g a t a d d r e s s 0 x0000 LCD[ 0 x0000 ] = 0 x12 ; / / W r i t e 0 x12 t o e x t e r n a l d a t a memory a t a d d r e s s 0 x0000 T=LCD[ 0 x0001 ] ; / / Read e x t e r n a l d a t a memory a t a d d r e s s 0 x0001 D LCD_LIGHT LCD_E LCD_RW 2 x 16 Liquid Crystal Display LCD_RS LCD_DB[7.0] P88,P87,P86,P84,P83,P82,P81,P75 P94 P89 P166 P164 [7.0] IOBUF8B Figure 1: Interface using the LCD controller quires 32 addresses (16 characters by two lines). The lower order address lines can connect directly to the LCD controller. The higher order address lines have to be decoded to select the correct address range. The same signals as used for the CPU can be used for CLK and RST. The data is read by the controller using CLK ...

Montana, EE 465

Excerpt: ... Requirements Specification for EE465 Lab Project 2: Liquid-Crystal Display and Keypad Lab project goal: Entries from a 16-button keypad will be displayed on an LCD and also on a single-in-line string of 8 LEDs. A 16-character-by-2 line LCD module will be added to the HCS908QG8 breadboard microcontroller circuit. Numbers entered via the keypad will be displayed as alphanumeric characters on the LCD module and also in a hexadecimal format on the single-in-line string of 8 LEDs. Requirements for lab project completion: 1. Modify your HCS908QG8 breadboard to match the schematic titled "LAB2- Liquid Crystal Display and Keypad." 2. Your LCD should be a Microtips MTC-S16204XRYHS-10 display, 2 lines by 16 characters. Data sheets for this LCDs are available at our class web site. A Freescale Application Note, AN1745, describes how to interface an HC705 (closely related to the HCS08) to an LCD module. There is another Application Note, AN2940 that describes a LCD driver as well. The application notes are also available ...

Brookdale, TR 941706

Excerpt: ... urchasing your next television. CRT Technology History Early television Invention Capabilities Operation Scientific advancements "Resolution Revolution" CRT Technology CRT history Uses of CRTs CRT television systems Technological Constraints Projection TV Types Aspects Size Functionability Quality Projection Technology Rear (reflective) projection Projection Technology Forward (transmissive) Projection Liquid Crystal Display (LCD) A Brief History 1904 Liquid crystals first studied 1968 First monochrome display available on the market. 1980s Colour LCD More recently used in computer monitors and TVs Roots Voltage Nokia 6820 Liquid Crystal Display (LCD) Advantages Small size thin, usually under 10 cm Vibrant colours Sharp images Good brightness level Wide viewing angle Overall good image Sony KLVS32A10 32" BRAVIATM Liquid Crystal Display (LCD) Disadvantages Ghosting leaving trails behind moving images Partial bla ...

Maple Springs, ENG 3320

Excerpt: ... Microsystems Technology ENG/PHYS 3320 Chapter 5 Optical Microsystems Part 2 Overview So far, we discussed Optical sensors Next, we concentrate on Optical actuators Light emitters LEDs, Organic LEDs, Laser Diodes Another light emitter Field emission display Lighter modulators Liquid Crystal Display s Not discussed in the lectures Other types of Light modulators include reflective micromechanical light modulators, i.e., mirrors! Micro-machined optical structures See chapter 4 - section 4 in the textbook Optical Actuators It is difficult to define precisely what is meant by an optical actuator Many of the micromachined devices we have seen already e.g. micromirror, hinged mirror can be described as optical actuators because they have optical applications these are frequently termed light modulators A matrix of movable mirrors used to reflect a digital image to the viewer In the interests of time, we will not dwell on these devices Optical Act ...

Texas, CS 384

Excerpt: ... orkstation Laser-printed page 300 dpi 1200 dpi Film 8.5 x 11 x 3002 x 1b 8.5 x 11 x 12002 x 1b 4500 x 3000 x 30b 1 MB 17 MB 50 MB 960 x 1152 x 1b 640 x 480 x 16b 1280 x 1024 x 24b 1/8 MB 1/2 MB 4 MB I V Monitor gammas are typically around 1.7-2.5. 11 12 Aspect ratio Frame aspect ratio = horizontal / vertical size Color CRT monitors TV HDTV Letter-size paper 35mm film Panavision 4 : 3 16 : 9 8.5 : 11 (about 3 : 4) 3 : 2 2.35 : 1 Pixel aspect ratio = pixel width / pixel height ! nowadays, this is almost always 1. Many color monitors employ shadow mask technology. The variety depicted above: ! uses triads of red, green, and blue phosphors at each pixel ! uses three electron guns, one per color ! shadow mask used to make each kind of phosphor only "visible" from one gun These are also known as RGB monitors. 13 14 Color Trinitron CRT's Liquid Crystal Display s Laptops typically use liquid crystal display s (LCD's). ! Light enters a vertical polarizer ! Nematic crystal twists light based on applied ...

Georgia Tech, ECE 4000

Excerpt: ... Text, graphics ok Title of your research paper Your name Some possibilities: Pose your research question Summarize your findings thus far Explain the issues you will address Explain what more you need to do to complete your research Liquid Crystal Display s: The Past, Present, and Future of Flat Screen Technology Wade Lyonal Lindsey, ECE 4000, L07 Discovered in 1888 by Reinitzer, a German botanist Turned into something useful by RCA in the 1960s Turned into something productive by SHARP in the 1970s Finally made useable at room-temperature Example 1, Slide 1: Well Organized LCDs: The Present and Beyond Miniaturization and superscalabilitytwo emerging frontiers Ideal for portable electronics Ideal for large scale flat panel display Research Focus Comparison of LCD w/ emerging alternatives: plasma, organic emissive devices (OED) Example 1, Slide 2: Well Organized Liquid Crystal Display s Wade Lyonal Lindsey September 26, 2002 ECE 4000 Section L07 ...

Allan Hancock College, ELEC 4605

Excerpt: ... troller reVCC U5 CLK RST U_LCDControllerInt LCDControllerInt.VHD MEMDATAI MEMADDR[15.5] MEMWR BUSY MEMRD STROBE VHDLENTITY: LCDControllerInt DATA[7.0] ADDR[3.0] LINE BUSY STROBE LCD16X2A LCD_E LCD_RW LCD_RS LCD_DATA_TRI LCD_DATAO[7.0] LCD_DATAI[7.0] U6 [7.0] LCD_LIGHT LCD_E LCD_RW 2 x 16 Liquid Crystal Display LCD_RS LCD_DB[7.0] P88,P87,P86,P84,P83,P82,P81,P75 P94 P89 P166 P164 [7.0] IOBUF8B Figure 1: Interface using the LCD controller quires 32 addresses (16 characters by two lines). The lower order address lines can connect directly to the LCD controller. The higher order address lines have to be decoded to select the correct address range. The same signals as used for the CPU can be used for CLK and RST. The LINE input to the LCD controller can connect to the next highest address line. This means that the LCD controller covers 32 addresses, one for each character on the screen. The data is read by the controller using CLK when STROBE is asserted. Title The way in which the data is latched from ...

Purdue, PSY 200

Excerpt: ... Prof. Greg Francis 1/6/09 Visual dynamics PSY 200 Greg Francis Lecture 10 Why (CRT) computer monitors work. Purdue University Flicker A flashing light looks constant if it is presented rapidly enough The frequency of flashing at which subjects do not detect flicker is called the Critical Flicker Frequency (CFF) about 50 Hertz (50 on-off cycles in a second) 20 millisecond durations Purdue University CFF Phosphor Establishes minimum characteristics of electronic devices Lights flicker at 120 Hz we spend a lot of time in darkness The phosphor on a computer screen typically glows less than 10 milliseconds ten thousandths of a second Computer (Cathode Ray Tube, CRT) monitors and TVs flicker at around 60 Hz better monitors go faster Liquid Crystal Display (LCD) monitors work differently Although some still flicker Purdue University The gun reactivates the phosphor every 17 milliseconds Thus, at any given time 1/3 of the screen is dark the p ...