WEBVTT 00:00.180 --> 00:05.290 Go to lab 7 RC servo RC So it was demonstration. 00:05.400 --> 00:09.550 If you look here at the I've got the breadboarding here. 00:09.720 --> 00:13.900 I've got my three point three Volt to five volt conversion going on. 00:13.950 --> 00:24.690 I've got the two 39-A four transistors in there and I've got my four resistors the two one k on resistors 00:25.320 --> 00:30.770 and I've got 2.2 K on resistors in there as well. 00:30.770 --> 00:37.950 If you look at the circuit diagram I talked about in the video you'll be able to find a reference that 00:37.950 --> 00:39.090 schematic there. 00:39.450 --> 00:40.950 And here we go. 00:41.190 --> 00:47.250 Here's the bases to board with RC servo land completed and running on here. 00:47.520 --> 00:56.400 And what I've got here is you can see the 7:7 display this is displayed what my pulse with modulation 00:56.400 --> 00:59.910 output is in relation to the resolution. 00:59.910 --> 01:08.460 So we've got 8 bits of resolution meaning that this value will go from zero all the way up to that. 01:08.880 --> 01:10.880 And here I've got. 01:10.950 --> 01:18.660 You can see the 5 volts I'm pulling off of the bases is too bored to power the RC circle. 01:18.870 --> 01:26.360 And over here is brown wires the actual pulse with modulation output coming out of here and into the 01:26.360 --> 01:28.740 3.3 Volt to FEIBEL conversion. 01:28.740 --> 01:35.640 And this right here is a ground I'm pulling off here just to keep everything together and this right 01:35.640 --> 01:38.140 here is the actual servo. 01:38.400 --> 01:43.960 And so what I want to do here is I've got my Nabl pen which is low. 01:44.160 --> 01:46.890 So right now my output is enabled. 01:47.160 --> 01:48.930 And this right here is. 01:49.050 --> 01:51.560 So it should add purchase here. 01:51.860 --> 01:58.860 This should add up to five and this is Archie sort of a new push that a five year seniority servo that 01:58.940 --> 02:00.310 just changed position. 02:00.310 --> 02:06.450 So I keep pressing this because this is my nick right here I've got this switch locked into one which 02:06.450 --> 02:09.820 means that's going to add and my value will change on here. 02:10.020 --> 02:15.900 So as I keep pushing this value changes hands as that increases this won't change. 02:15.910 --> 02:23.150 Now I'm going to go ahead and go down down values who's down on the arse's servo. 02:23.190 --> 02:31.260 Now this thing goes all the way up to the RC service is limited in that it only has 150 degrees worth 02:31.280 --> 02:32.180 of rotation. 02:32.400 --> 02:35.460 And so I can't go up any higher. 02:35.460 --> 02:37.560 Like you'll see what happens. 02:37.770 --> 02:42.350 It'll keep falling until right now which is kind of the Maxson where we went down to zero. 02:42.350 --> 02:49.190 So if I go in here it's kind of all in back around and nothing's going to happen here because this artillery 02:49.270 --> 02:50.590 is an x value. 02:50.850 --> 02:56.710 So I have to get back down to lower pulse with modulation values to where it'll start recognizing. 02:56.840 --> 02:57.580 So yeah. 02:57.630 --> 03:04.950 Now now of a second of these guys or I can push this is the one button and I push this year to a smaller 03:04.950 --> 03:11.400 increments is larger increments and this enable although I couldn't put this off to say that this works. 03:11.490 --> 03:14.620 Put that off because it's output. 03:14.620 --> 03:15.310 I can push it. 03:15.340 --> 03:19.150 But Holsworth modulation up it stays locked in. 03:19.860 --> 03:23.010 But I can't press it on anything else. 03:23.040 --> 03:33.420 Now enable again and as you can see switches around and counting down so you see and you'll be able 03:33.420 --> 03:37.860 to tell it's working right away see you push your buttons here and you the hexadecimal map you'll see 03:37.860 --> 03:40.520 the numbers changing. 03:41.690 --> 03:44.170 Let's get down to value go see something wrong. 03:44.440 --> 03:52.280 And also to since you hook your Cicero and you'll see the push button you'll see it kind of change using 03:52.280 --> 03:59.470 his ups and down and once you going on you've successfully completed you.