Arduino Programming: Tip and Tricks to Learn Arduino Programming Efficiently by Nicholas Stuart

Author:Nicholas, Stuart [Nicholas, Stuart]
Language: eng
Format: azw3, epub, pdf
Published: 2020-09-05T16:00:00+00:00

In the structure of an external power supply should be used if possible, as it improves considerably the sensor accuracy (9V AC adapter or 9V battery).

Sketch:

int TMP36 = A0;​ // The sensor A0 is to be connected to the analog pin. We

// call the pin from now "TMP36"

int temperature = 0;​ // Under the variable "temperature" is later

// temperature value stored

int temp [10];​ // This yields good values, you first read multiple values

// and then averages the results. The square bracket "[10]" generated here

// equal to ten variables named "temp [0],” "temp [2],” "temp [3]"... to...

//"temp[9]".Mit the notation [10] So you can save only a little Place .

int time= 20;​ // The value for "time" is in the code, the time intervals

// ago between the individual measurements. void set up() {

Serial.begin(9600);​ // In the setup we start serial communication so

// we can show us the temperature later. About the serial

// communication the board, sending measurements to the computer. In the Arduino

// software can be under "Tools" the "Serial Monitor" start the readings

// to see.

}

void loop() {

temp [0] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [1] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [2] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [3] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [4] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time); ​

temp [5] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [6] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [7] = map(analog read(TMP36),​ 0​ 410​ -50,​ 150);

delay(time);​

temp [8] = map(analog read(TMP36), 0, 410, -50, 150); delay(time);

temp [9] = map(analog read(TMP36), 0, 410, -50, 150);​ // From here is ten times the

read // temperature. In between is ever a break with the duration

// "time" in milliseconds. But what happens here, exactly? Let's look at the

// command once more closely.

// temp [1] = map (analog read (TMP36), 0, 410, -50, 150);

//Sequentially:

// temp [1] - is the name of the first variable.

// "map (a, b, c, d, e)" - This is the so-called "Map command". Allows

// to a read-in value (a) in which the values between (b) and (c) lie,

// convert it into a different speed range, and that (d) in the area between

// and (e).

// following our command happens:

// the value of the sensor is read out directly in the "Map" command wit h

// "analog read (TMP36)". The measured values should be between 0 and 410th The

// corresponds to the analog port of the values between 0V and 2V. is the voltage

// the sensor out at temperatures between -50 ° C and + 150 ° C. These values on

// analog port will now be through the "Map command" directly to the Celsius values

// -50 to 150 converted.

temperature = (temp [0] + temp [1] + temp [2] + temp [3] + temp [4] + temp [5] + temp [6] + temp [7] + temp temp [8] + [ 9]) / 10; // All in a row. Here every ten are found

// temperature values added together and divided by ten. The

// average value is stored under the variable "temperature"

Serial.print(temperature);​ // Now, the value of "temperature" over the serial

// sent communications to the PC.

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