1 00:00:05,460 --> 00:00:11,920 ‫Welcome to the microphone interface demonstration with the ARDE development board for this demonstration 2 00:00:11,920 --> 00:00:17,800 ‫we're using the microphone break breakout poured from out of fruit and we haven't connected on the external 3 00:00:17,800 --> 00:00:21,370 ‫bread board where there's three pins on the microphone. 4 00:00:21,370 --> 00:00:25,210 ‫We have an out ground in our BCSC. 5 00:00:25,390 --> 00:00:29,180 ‫The out is the output from the microphone which is an analog signal. 6 00:00:29,380 --> 00:00:34,810 ‫And we are feeding the output of the microphone into the zero input on the already developed the board 7 00:00:35,200 --> 00:00:39,410 ‫of the chip kit or Arduino Petters. 8 00:00:39,430 --> 00:00:42,440 ‫We also have the ground and the DCC. 9 00:00:42,490 --> 00:00:49,660 ‫The ground is tied to ground which we have then running back into the ground on the JPM on port and 10 00:00:49,660 --> 00:00:56,440 ‫the VCC which is 3.3 volts we have doing the same thing or running that to the 3.3 volts on the JPM 11 00:00:56,440 --> 00:01:02,600 ‫on port and for this we also have what we're using one slide switch the reset. 12 00:01:02,770 --> 00:01:04,340 ‫Right now we currently have to reset. 13 00:01:04,350 --> 00:01:05,900 ‫So nothing's happening. 14 00:01:05,980 --> 00:01:11,650 ‫But as soon as I pull it out to reset what's going to happen is my my my voice or the sound waves that 15 00:01:11,650 --> 00:01:13,110 ‫are produced from my voice. 16 00:01:13,280 --> 00:01:19,360 ‫Well go into the microphone and the microphone will take and oscillate them and produce an analog output 17 00:01:19,360 --> 00:01:25,690 ‫based on the frequency and the volume of my voice and the analog signal will then come into our FPGA 18 00:01:25,690 --> 00:01:33,160 ‫board or the ADC chip is going to read through an analog to digital conversion and then the delay we 19 00:01:33,160 --> 00:01:37,170 ‫have in there is going to sample those rates at 40 kilohertz. 20 00:01:37,180 --> 00:01:44,650 ‫So anything we can hear any frequencies that we can hear should show up on these Ltd's and what you 21 00:01:44,650 --> 00:01:49,810 ‫notice is as I talk you kind of see the ladies dance or light up in accordance with the way that I'm 22 00:01:49,810 --> 00:01:53,340 ‫talking so I'm going to go ahead and enable the switch. 23 00:01:53,380 --> 00:01:58,480 ‫So now as I'm talking you can see that the Ltd's blink like whenever you hear my voice you see the OTS 24 00:01:58,480 --> 00:02:04,270 ‫turn on and if I don't talk which I won't hear in a minute and see the ladies all turn on now if I talk 25 00:02:04,270 --> 00:02:10,030 ‫really while you can just barely hear them blink on and off if I talk louder you'll see that they go 26 00:02:10,240 --> 00:02:11,310 ‫up a little higher. 27 00:02:11,680 --> 00:02:15,970 ‫And what am I to show you is you can do what's really cool about this is you can kind of synchronize 28 00:02:15,970 --> 00:02:16,810 ‫this to music. 29 00:02:16,810 --> 00:02:29,690 ‫So here we go play a little music into the microphone and you'll see the ladies live up to it. 30 00:02:49,910 --> 00:02:51,050 ‫So that's pretty cool. 31 00:02:51,050 --> 00:02:56,420 ‫That's a way if you ever see like in a dance club or any type of nightclub or anywhere else you're at 32 00:02:56,440 --> 00:02:59,820 ‫and you see it is like lighting up and you're wondering how do they make it happen to them. 33 00:03:00,050 --> 00:03:00,810 ‫To the music. 34 00:03:00,950 --> 00:03:02,030 ‫Well this is one way to do it. 35 00:03:02,030 --> 00:03:07,460 ‫You can just take a microphone simple and a microphone read those signals and then just display them 36 00:03:07,460 --> 00:03:13,100 ‫on LSD and they will flash really quick so it looks really cool and that's you can do is say Christmas 37 00:03:13,100 --> 00:03:15,020 ‫lights I'd be a great example for this. 38 00:03:15,050 --> 00:03:17,740 ‫We're only using that eight ideas that are on the board here. 39 00:03:17,750 --> 00:03:23,060 ‫But you could string a whole and a whole strand of Elodie Christmas lights and do the same exact thing. 40 00:03:23,360 --> 00:03:27,530 ‫And that is the microphone demonstration running on the already development board.