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  • Essay On Bipolar Stepper Motor

    1. Introduction This is the first in a series of articles on using Forth to interact with the real world. We will explore how to control motors of various types (such as servomotors and stepper motors), switch power to devices, and sense the environment. Each article will present a project that can be used to demonstrate the ideas we are going to discuss. In this first article, I want to lay the foundation for the future columns and discuss the use of the PC parallel port to control stepper motors. We will adopt the fantasy that we are working on some microprocessor-based control application and will be using the PC parallel port as a proxy for the digital I/O channels on our controller. To the extent possible, the code will be written in high level (so that we can illustrate the principles clearly), and will be in ANS Forth. 2. The PC Parallel Port First, if you haven't already, go to your back issues of Forth Dimensions and find Ken Merk's article "Forth in Control," (FD XVII/2). In that article, Ken talks about using the PC parallel port for eight digital outputs. We will be expanding on that and use some of those other pins to get input as well as to provide output. A parallel port on the PC is really three address locations which, for conventional use, could be called #Data, #Command, and #Status. The port #Data is at the base address of the parallel port, #Status is at the base address plus one, and #Command is at base plus two. The base address…

    Words: 2569 - Pages: 11
  • Dana Point Case Study

    PhotoScan to correctly align them and show details. When zooming in on the cliff, the quality of the images is very good and one can point out geologic features such as rock layers, faulting (Fig. 3), erosional paths (Fig. 4), areas of possible landslides (Fig. 4) and sea caves (Figure 5). Field Mapping Four faults were mapped while walking alongside the cliffs after flying the drones. Dips were 42 to the S, 83 to the N, 70 to the S, and 44 to the south. If more faults were to be mapped, a…

    Words: 1217 - Pages: 5
  • Analysis Of Sally Mann's Immediate Family

    the unique primitive lifestyle captured in the images (Foerstner 1993). Many of the photographs are described as provocative because of the nudity. The images that Mann created are haunting and graphic. “Immediate Family” is Mann’s third book. Unlike the other two books, this one sold out in three months, making her a commercial success (Mann 2015). The book’s…

    Words: 2221 - Pages: 9
  • Gmb Akash As A Photographer Analysis

    The photographer I want to talk about is GMB Akash ,he is a Photographer from Bengal , his is a photojournalist, all of his works is revolving around the social bottom ,he love take photo in street, he is well- known by many people by taking documentary photography and especially the photo of vulnerable groups, his work has been pushed in over seventy major international publications, also, he has earned more than eighty international awards . [2] I think his photo are meaningful, boldness and…

    Words: 1108 - Pages: 5
  • Sr Camera Research Paper

    Photography is one of the few fields that is actually able to capture the combination of the spiritual world, the art world and nature herself, an amalgamation that will certainly leave u breathless. What better device can you use to capture such moments than the DLSR camera. A SLR camera is different compared to other cameras because SLR camera allows the photographer to see the real whole image before hands. Most ordinary cameras usually have flaws in their viewfinder meaning they can't really…

    Words: 860 - Pages: 4
  • Camera Phone Convergence

    In this essay I will be showing you how the convergence of the camera phone and social media has lead us to survey not only ourselves but others. I will not put too much focus on the origin of the camera phone , rather I will be writing on how social media and the camera phone has shaped us to review our pictures , and the positives that have come with the convergence of these technologies Although the topic is under great debate, the first ever camera phone was created in May 1999 by Japanese…

    Words: 1457 - Pages: 6
  • Dire Image: The Power Of Selfie

    The power of selfie bring us together The definition of selfie is the capture of yourself in a photo that you took and shared to the social media. In this case this selfie had been shared to the media but instead of only one person they are three. That made this selfie a little different from the majority of them. However, they took it a step further. They recognize was an experience that they shared together, and not was appropriate to leave out important people that contribute to that moment.…

    Words: 1225 - Pages: 5
  • Photography Career Paper

    job is also the people. Some people are extremely difficult to work with, but you have to have the patience to deal with them. Some people are very picky and want their pictures a certain way and sometimes that’s hard to handle, and others are just rude. You have to be very laid back, willing to listen to what they want, and “keep your cool”. Some skills you need for this job include being able to work with a digital camera, being able to work with other people, and know how to use editing…

    Words: 1128 - Pages: 5
  • Take Action Rhetorical Analysis

    networks; this network it is helping people to maintain contact with their loved ones, and to show support and appreciation to others by liking or sharing their pictures or comments. But how much “likes” or “sharing” a picture can help? CRS (Crisis Relief Singapore) launched a campaign called “linking isn’t helping,” this campaign provides powerful images and messages. The picture for this rhetorical analysis consist in a black and white image, where the audience can observe a young girl…

    Words: 711 - Pages: 3
  • On Photography Susan Sontag Analysis

    view utilizing a camera to record both a physical reality and an internal reality. Sontag's claim of photography constrains our comprehension of the world is a great observation; however, today’s current photograph manipulation makes it difficult to see what reality truly is. Following the invention in the 1800s, the photographic picture and its consistent development have formed our experience of reality. Regardless of the brilliant ascent of photography from an interest to a mass medium…

    Words: 1073 - Pages: 5
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