WEBVTT 00:00.330 --> 00:02.620 Let's understand how things work. 00:02.940 --> 00:10.170 So if you remember, we have 600 pins on the argument, the number for those pings goes from a zero 00:10.170 --> 00:11.070 to a five. 00:11.730 --> 00:17.940 Note that on other types of around the world, you may also have a different layout, a different number 00:17.940 --> 00:22.810 of Europeans that if you understand this lesson well, it would be easy for you to find it. 00:23.340 --> 00:32.010 And one thing you can notice here is that is not just an analog underpins its written analog in which 00:32.010 --> 00:33.730 means analog input. 00:34.170 --> 00:42.180 So by default, the analog pings on the original are set as input beings, which means that in your 00:42.180 --> 00:44.970 code you would not have to call the pinboard function first. 00:45.420 --> 00:49.530 You can just use directly the analog been to read values from an analog sensor. 00:50.010 --> 00:52.920 Now, how does it work on the Andrina? 00:53.310 --> 00:59.430 When you read data from an analog input pin, you will get an integer value between zero and one thousand 00:59.430 --> 01:00.010 twenty three. 01:00.390 --> 01:04.830 This number will be determined directly from the voltage applied to the pin. 01:05.190 --> 01:11.580 So an analog sensor like you put on Showier, which is basically a valuable resistance, will simply 01:11.580 --> 01:16.770 apply a different voltage on the other being from zero to five volt. 01:17.240 --> 01:23.300 The Orange Bowl will read this voltage and translate it into an integer number. 01:23.610 --> 01:26.520 So four zero volt you will get the value. 01:26.720 --> 01:30.920 Zero or five volt you will get one thousand twenty three. 01:31.230 --> 01:34.170 And let's say that the voltage is three volts. 01:34.380 --> 01:39.870 So three volts is 60 percent of five volt, which means that you will reach the value. 01:40.050 --> 01:41.790 Six hundred and fourteen. 01:42.090 --> 01:48.630 Any other value between zero and five volt will give you a value between zero and one thousand twenty 01:48.630 --> 01:50.550 three in your program. 01:50.550 --> 01:56.650 You can directly use these range of integers, which will be easier to process than voltage numbers. 01:57.270 --> 02:00.590 So that's how analog input beings work. 02:01.230 --> 02:03.900 And now this is an important addition. 02:04.110 --> 02:10.050 And it may seem weird, but you can't use the analog right function on an analog being. 02:10.500 --> 02:17.700 The analog right function is used on only some digital pins which have a B.W. and functionality in order 02:17.700 --> 02:20.970 to right an analog value to actually do so. 02:20.970 --> 02:26.640 The choice of the name of the function from the developers of the original library was maybe not the 02:26.640 --> 02:28.200 best choice for clarity. 02:28.500 --> 02:33.120 Just remember that you can't use analog right on things. 02:33.360 --> 02:35.810 You can only read analog values. 02:36.150 --> 02:37.070 You can't write.