1 00:00:05,450 --> 00:00:12,440 ‫Welcome to the booth of growth and demonstration on the RTC 7 development board we have four different 2 00:00:12,720 --> 00:00:22,490 ‫7st boys on this on a breadboard where the two top displays are inputs one into into the boost algorithm 3 00:00:22,880 --> 00:00:29,960 ‫and the result of the other multiplication is displayed on the to 7 segment displays at the bottom of 4 00:00:29,960 --> 00:00:30,840 ‫the bread. 5 00:00:31,070 --> 00:00:38,660 ‫Now each of these segments are all tied together through a 56 ohm resistor and fed into the JP port 6 00:00:38,930 --> 00:00:47,780 ‫on the RTC 17 for each of the digits are connected through and in end in two and three and four transistor 7 00:00:47,900 --> 00:00:51,170 ‫with the 470 ohm resistor connected to the base. 8 00:00:51,350 --> 00:01:02,060 ‫And these are fed into the items that are for a chip kit or an Arduino Hetter and also for this board 9 00:01:02,060 --> 00:01:10,280 ‫we're using switch one in switch zero where switch one is selects whether we're adding or subtracting 10 00:01:10,880 --> 00:01:20,720 ‫and our select select either input 1 or input 2 and then button 0 1 and 2 will either add or subtract 11 00:01:20,820 --> 00:01:31,670 ‫a 1 10 or 100 to inputs 1 2 and also by pressing button 3 worksheet perform the multiplication. 12 00:01:31,670 --> 00:01:37,930 ‫And so bous how rhythm is designed so that you can perform operation on signed numbers. 13 00:01:38,180 --> 00:01:43,110 ‫So go ahead and start we're going to press button zero and you'll see that we're. 14 00:01:43,220 --> 00:01:49,790 ‫Since our switch one is one we're adding their switch 0 or selecting our first number. 15 00:01:49,790 --> 00:01:56,090 ‫So we'll go ahead and press 1 and press 10 one up all up to 20. 16 00:01:56,420 --> 00:02:03,620 ‫So our input 1 is in 20 or input to go ahead and switch our switch 0 to select. 17 00:02:03,630 --> 00:02:10,440 ‫So now we're going to be like they are input 2 and we're going to make that value of two. 18 00:02:10,700 --> 00:02:15,170 ‫So if we press or button three we're going to perform the multiplication and the result we should see 19 00:02:15,170 --> 00:02:17,450 ‫is two times 20 which is 40. 20 00:02:17,540 --> 00:02:19,590 ‫We'll see on the bottom value. 21 00:02:19,900 --> 00:02:24,060 ‫Go ahead and press and you can see we get the value of 40. 22 00:02:24,090 --> 00:02:32,540 ‫Now this also works if our switch 0 was still selecting the digit 2 and we're going to subtract now. 23 00:02:32,700 --> 00:02:33,580 ‫So we're going to try. 24 00:02:33,580 --> 00:02:36,780 ‫Negative numbers will go negative 3. 25 00:02:37,040 --> 00:02:45,800 ‫So negative three times 20 is negative 60 and we can indicate the negative by the farthest left digit 26 00:02:45,800 --> 00:02:50,270 ‫of your 7 segment display indicates that your digit is a negative value. 27 00:02:50,270 --> 00:02:57,320 ‫So if we press the button three we'll see that we have a negative 60 that is displayed at the result 28 00:02:57,440 --> 00:02:59,840 ‫of our Bruce algorithm. 29 00:02:59,840 --> 00:03:03,380 ‫Now we can go ahead and just going to do we can do two negative numbers. 30 00:03:03,380 --> 00:03:09,410 ‫So also whacked my digit 1 and do some subtractions. 31 00:03:09,410 --> 00:03:16,820 ‫So negative 10 times and negative 3 which is a positive 30 will do multiplication good See we now have 32 00:03:16,820 --> 00:03:17,810 ‫a positive third. 33 00:03:18,020 --> 00:03:19,580 ‫We can do any combination of numbers. 34 00:03:19,580 --> 00:03:22,440 ‫We can do some really large numbers. 35 00:03:22,460 --> 00:03:33,380 ‫So for example we'll go up to we'll add by 100 We'll go up to nine hundred ninety And we'll do our second 36 00:03:33,380 --> 00:03:36,840 ‫digit from multiplication right there. 37 00:03:36,860 --> 00:03:40,910 ‫Now second did we have the nine ninety seven times 990. 38 00:03:40,970 --> 00:03:47,300 ‫When pressed are multiplication and we can see that we take nine hundred ninety and multiply it by nine 39 00:03:47,300 --> 00:03:48,670 ‫hundred ninety seven. 40 00:03:48,800 --> 00:03:54,490 ‫The value we get is nine hundred and eighty seven thousand thirty. 41 00:03:54,510 --> 00:03:57,950 ‫And so you can use for any combination of two different. 42 00:03:57,950 --> 00:04:05,930 ‫You can have two separate as negative numbers one negative or either negative or both positive and bous 43 00:04:06,020 --> 00:04:07,770 ‫algorithm can handle those. 44 00:04:07,760 --> 00:04:11,610 ‫And so this is just a nice way to be able to handle sine multiplication by use. 45 00:04:11,690 --> 00:04:16,660 ‫And that is a demonstration of this algorithm running on the RTC 7 Melton's board.