Monday, November 23, 2015

Setting up the Seven Segment Display

For this assignment we interacted with the seven segment display which goes across the board, not parallel to the longer side. Now we are going to work on a Seven Segment display. This is a very complex and challenging project. It works just like our external LED program, except it has 7 LEDs all together in one small chip. We will be able to count and display letters with this chip. This program gave us an idea of how you would light up a calculator display.You can see the seven segments up above. We were not concerned with the DP (decimal point light), but if we were writing a calculator program we would have needed it. When you are inserting this chip in the breadboard, make sure you do not bend the pins! Have the decimal point facing your Arduino. By connecting to the different pins, we will be able to make different segments of our display go on. 

Steps Followed

  1. First connect GND on Arduino to the third row from the top of the seven segment display. Then connect one of the slots (in picture we used slot 13) the Arduino to a row on the breadboard above the seven segment display. 
  2. Then use a resistor to from that row to a row above or below the seven segment display.
  3. We then start by putting our 7 Segment display chip on to the breadboard. One of set pins can be in column C and the other in column G. You can put it in any row, but it’s better somewhere in the middle (see picture below). 
  4. The next thing we hadto do is connect a wire on the breadboard to a Ground (GRD) on the Arduino. The ground (black wire below) has to be in a row three from the top of the 7 Segment Display. So if the first row was 28 like it is below , then we have to put a ground in row 31.








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