Want to make a pressure sensor? Wana make your new science project or just have some fun? Got a LinkitONE board? Then you are at the right place!

Here i'll show you step by step how to interface a pressure sensor with your LinkitONE.

Step 1: What Do You Need?

1) LinkitONE Board

2) Piezo sensor (you can take it out from a speaker)

3) micro-USB cable (for programming)

4) battery pack

Step 2: Assembling the Parts

Now assemble all the parts together.

First of all, connect the jumper wires to the pizeo module. Connect 2 wires to both pins of the sensor.

Now connect the sensor to the A0 pin of the board.

Pin connections:

PIN 1 - VCC

PIN2 - A0

Step 3: Writing Some Code

The code is really simple here! There's nothing much!

We're just taking a analog reading from sensor pressure per centimeter square. We are first analyzing reading for 30 seconds and then giving back the readings.

CODE:

------------

int Sensor_Pin = A0;

void setup()

{ Serial.begin(9600);

}

void loop(){

int SensorReading = analogRead(Sensor_Pin);

Serial.print("Pressure is");

Serial.print(SensorReading);

Serial.print("Pa");

Serial.println();

delay(250);

}

------------

Okay, so now burn this code to your board.

Step 4: Testing It Out!

Now test your device!

Just burn the code on your board from the previous step and then start! Open the serial monitor on the modem port of your Linkit. Carefully observe your readings. They update every 1/4 seconds. You can even plot a graph using opensource tools available online such as plotty or ubidots.