August 3rd Summary Capstone 2010 Group Members: Emina Bartos, Kyle Leonard, Group #5 Anthony Lui and Stewart Robson Instrument Cluster Page |2 Abstract Over the course of history, everything seems to be shifting from an analog functioning world to a digital one. Whether it’s the obvious clock towers to digital displays of time and temperature on company signs or record players to mp3 players. Anything that can be translated to 0’s and 1’s is seemingly dubbed a more convenient and controllable way of presenting a technology. For Capstone 2010, this ideology represented itself in a project for developing an instrument cluster to digitally display the most important readings for the (soon to be electrically-powered) Porsche. The electronic instrument cluster that was created displays voltage, speed, rpm, battery level, left and right turn signals, 4-ways, a low-battery light, a seat-belt light, and a check engine light. In the future this prototype will be receiving inputs from various components of the car that other groups worked on. Literature Survey Traditionally the instrument cluster has always been created using analog gauges. In 1976, the first electronic instrument cluster was implemented in the Aston Marton Lagonda and is shown in Figure C-2. Figure C-2 – Lagonda dash in its early years It was the first production car to introduce a computer management system and an instrument cluster that used CRT (cathode ray tube) monitors instead of the traditional gauges. The electronics that were used its production came to nearly four times as much as the budget of the entire car.  Page |3 Work Done The designing of the visual aspect was done first because the instrumental cluster because although performance is sought, the cosmetic make up of the device is sought after almost as much. Our instrument cluster was progrmmed to have the following readings shown in the AUTOCAD design layout in Figure 1. Figure 1 – AUTOCAD design layout In order to accommodate the Porsche perfectly, the dashboard was taken apart and measurements and photos were taken. The dismantled dash is shown in Figure 2. Figure 2 – Dismantled Dash Once the optoelectronics were decided on, the programming of the VB app. (VB6) and the microcontroller (controls all LEDS and 7-segment displays) were done. From the components that were available and from the circuit design, a multiplexing method was decided on to implement the microcontroller. It was required to design a method to cycle through outputs which would then be delivered to the correct 7 segment displays. Also it was required to switch on the correct 7 segment display within a small time interval and then quickly switch to the next display. From this a program was designed to implement this method and is fully detailed in the full report. The circuity was designed and is shown in Figure 2. Page |4 Figure 3 – Circuit Schematic From the breadboard layout the design layout was implemented in EagleCAD. Once all the files were made it was all sent to PCB Express to manufacture a PCB. When the board was received, all the components and wires were soldered on as shown in Figure 6 Figure 6 – Populated Circuit Board After all the individual pieces were constructed, it was all put together into the current instrument cluster prototype as shown in Figure 8 Figure 8 – Instrumental Cluster Prototype Page |5 Team Members Emina Bartos Emina Bartos was born in Novi Sad, Serbia (former Yugoslavia) on December 1st 1988. At the age of 2, she and her family moved to Windsor, Canada because of religious persecution and economic hardship. She was always drawn to mathematics and physic and decided to Engineering. Emina became interested in Electrical Engineering with the hope she could make a difference by helping the advancement of a more environmentally friendly vehicle. Kyle Leonard Kyle Leonard was born on December 16th 1987 in Cambridge Ontario. While he was growing up, he always had a passion for electronics whether it was taking things apart and finding out how they work or building a car computer from scratch. He was always interested in hands-on technical courses throughout school. This combined with his childhood interest led him to pursue Electrical Engineering with the hope to become more knowledgeable with electronics. Anthony Lui Anthony Lui was born in Windsor, Ontario on March 28th, 1988. Throughout high school he enjoyed his physics and mathematics classes which led him to be interested in Electrical Engineering program at the University of Windsor. Capstone 2010 allowed Anthony to apply his experiences which he obtained in the past. Stewart Robson Stewart Robson was born and raised in Windsor, Ontario on May 12th 1988. He attended Vincent Massey Secondary School and was included in the Enrichment Program. During his University co-op terms, he was employed at Essex Power where he improved on his power systems knowledge and computer programming skills. Capstone 2010 provided an outlet to channel this knowledge.