‫Welcome to the booth of growth and demonstration on the RTC 7 development board we have four different
‫7st boys on this on a breadboard where the two top displays are inputs one into into the boost algorithm
‫and the result of the other multiplication is displayed on the to 7 segment displays at the bottom of
‫the bread.
‫Now each of these segments are all tied together through a 56 ohm resistor and fed into the JP port
‫on the RTC 17 for each of the digits are connected through and in end in two and three and four transistor
‫with the 470 ohm resistor connected to the base.
‫And these are fed into the items that are for a chip kit or an Arduino Hetter and also for this board
‫we're using switch one in switch zero where switch one is selects whether we're adding or subtracting
‫and our select select either input 1 or input 2 and then button 0 1 and 2 will either add or subtract
‫a 1 10 or 100 to inputs 1 2 and also by pressing button 3 worksheet perform the multiplication.
‫And so bous how rhythm is designed so that you can perform operation on signed numbers.
‫So go ahead and start we're going to press button zero and you'll see that we're.
‫Since our switch one is one we're adding their switch 0 or selecting our first number.
‫So we'll go ahead and press 1 and press 10 one up all up to 20.
‫So our input 1 is in 20 or input to go ahead and switch our switch 0 to select.
‫So now we're going to be like they are input 2 and we're going to make that value of two.
‫So if we press or button three we're going to perform the multiplication and the result we should see
‫is two times 20 which is 40.
‫We'll see on the bottom value.
‫Go ahead and press and you can see we get the value of 40.
‫Now this also works if our switch 0 was still selecting the digit 2 and we're going to subtract now.
‫So we're going to try.
‫Negative numbers will go negative 3.
‫So negative three times 20 is negative 60 and we can indicate the negative by the farthest left digit
‫of your 7 segment display indicates that your digit is a negative value.
‫So if we press the button three we'll see that we have a negative 60 that is displayed at the result
‫of our Bruce algorithm.
‫Now we can go ahead and just going to do we can do two negative numbers.
‫So also whacked my digit 1 and do some subtractions.
‫So negative 10 times and negative 3 which is a positive 30 will do multiplication good See we now have
‫a positive third.
‫We can do any combination of numbers.
‫We can do some really large numbers.
‫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
‫digit from multiplication right there.
‫Now second did we have the nine ninety seven times 990.
‫When pressed are multiplication and we can see that we take nine hundred ninety and multiply it by nine
‫hundred ninety seven.
‫The value we get is nine hundred and eighty seven thousand thirty.
‫And so you can use for any combination of two different.
‫You can have two separate as negative numbers one negative or either negative or both positive and bous
‫algorithm can handle those.
‫And so this is just a nice way to be able to handle sine multiplication by use.
‫And that is a demonstration of this algorithm running on the RTC 7 Melton's board.