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Morning students today I will tell you how to acquire analog signal using ESP 8266.

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On ESP 8266 there is a only one pin, one analog pin that is A0 available on ESP 8266.

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We just use this to acquire analog signal.

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For that purpose, we just create new template inside the developer zone like I just put over here.

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Analog read name is analog read I'm using ESP 8266.

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So I'm just connecting to the Wi-Fi.

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Done.

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Now the data stream part.

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Create new data stream.

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Virtual pin should be there.

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So over here I just put a analog read R over here and v zero is my virtual pin.

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So over here in the minimum maximum I just put 255 0 to 255.

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If I got zero voltage I just acquire zero.

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If maximum voltage I just read 255.

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So just create this.

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And the default value is zero in this case.

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So I just go to the dashboard.

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In the dashboard I just use a gauge.

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Just drag over here.

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This is my gauge.

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You just increase the size of the gauge.

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So configure this gauge.

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You just put it over here.

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You can also change override data stream over here.

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Or you can change the color like there are many options.

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So I just use this.

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Save it.

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Save this.

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Now the web dashboard part completed.

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So you just go to the device over here.

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Create new device templates.

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Analog read create.

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So I require authentication ID name and token ID.

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I just copy this.

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Go to the code.

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Change the code over here.

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Now this part is same.

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My Wi-Fi password and ID is again same.

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So over here.

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This is the code I just use blink timer also over here.

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So I am just using creating a variable analog value as an integer analog read from a0 pin that is available

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on SBA to 66.

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I just write this over virtual pin b0 as a analog value and serial.print analog value plus string analog

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value over the serial monitor.

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Now, in the void setup, we have serial.begin.

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That is my baud rate.

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I am just calling blink app and I am just using timer.

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Also over here in this case, inside the void loop I just run blink dot run and timer dot run.

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So now you just upload this code inside the ESP 8266.

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It hardly take one minute.

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So after this we just go to the hardware part right now.

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ESP is connected with my.

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Com 22.

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As you see.

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So wait for some time.

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So now as you see my ESP is connected and right now it is writing the code inside the ESP 8266.

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So now hardware part.

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As you see this is my analog pin that a0.

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It is connected with the potentiometer center pin and this is my VCC and this yellow is my ground.

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So let's check what happened.

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So now I reset it.

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So just go to the dashboard device Analogread.

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Let's check value.

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When I just increase decrease as you see value is right now 42.

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Now 68.

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25 to 55 okay.

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So right now it is changing.

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Now it is six.

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Okay.

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So this is how you can read analog signal using ESP 8 8.66.

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Now we just go to the app inside the app.

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Over here I just put go to my blink app Analogread.

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Just add a gauge inside this or you can also use value display.

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Let's check I'm just using Value display.

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Select the data stream that is zero.

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Now I want to again add one more inside it.

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Right now 55 is there.

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I want to add some gauge also inside this with the same.

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Now gauge is there.

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Over here you just need to select the data stream inside this back.

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Back.

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As you see I'm just changing the value Now it is 110 in my ESP.

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There is a analog to digital converter.

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So that's why we just acquire this signal in digital form.

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So right now it is 2255.

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Let's change in the developer zone.

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I just go to the analog read and inside the data stream go to the data stream.

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Over here you just put you just edit this data stream right now click over edit.

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Go to the data stream over here.

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Just put 1023.

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This is the maximum value.

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Save it.

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Save and apply.

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Go to the device.

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Go to the analog read.

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So right now it is maximum.

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So this is my maximum value.

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Now I just changed value 867.

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There is a ten bit ADC inside the ESP 8266.

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As you see different values.

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So I just move it to extreme value right now.

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As you see the value.

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To 55 over here you just got 252 over here in the mobile phone.

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This is maximum value.

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I just change this.

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Now it is okay.

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So I am just changing the value.

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So this is how you can read analog signal using ESP 8266.

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So this is all about today's lecture.

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Thank you.