Published August 25, 2015 © GPL3+

1Sheeld CanSat

A successful attempt at making a fully functional Telemetry CanSat using 1Sheeld.

IntermediateFull instructions provided7,322

Fourth Place

Smartphone Hacks Challenge

Things used in this project

Hardware components

Arduino UNO

1Sheeld

9V battery (generic)

Smartphone with necessary sensors

Purple phones work best.

Story

What is a CanSat?

CanSats are great educational platforms for anyone wanting to get familiarized with miniaturized satellites and space technologies in general. They are devices the size of soda cans (hence the name) that are launched by the use of a sounding rocket/weather balloon, and then dropped. They collect data as they descend.

What is 1Sheeld?

1Sheeld is an Arduino compatible shield that interfaces with the sensors in your phone, so that you can use them for prototyping purposes without the need to buy several other shields and/or modules.

Attempt

I attempted to scrap all the sensors that would otherwise be used in a CanSat, such as temperature sensors, IMUs, GPS, etc. and replace them by 1Sheeld.

The 1Sheeld shields I used are:

Accelerometer
Data Logger
Gyroscope
GPS
Orientation Sensor
Push Button
Temperature Sensor
Pressure Sensor

Steps

1 / 2

Please check 1Sheeld getting started tutorial to learn how to connect 1Sheeld to your Arduino.
Upload the code (in the code section) on your Arduino.
3D print the structure, but make sure that you change the dimensions to fit your smartphone.
Weigh your CanSat with your smartphone and electronics inside.
Use the following formula to calculate parachute dimensions:

Drag Force (Fw) = Weight (Fz)
½ . cw . p . V2 . A = m . g
cw : drag coefficient of the parachute Assume (cw ) is 0.75
A : area of the parachute = 2mg/pv2cw
p :density of the air Assume (p) is 1.225 kg/m2
v : descent velocity of the cansat (Ideally 5 m/s, but I used 3 m/s for good measure)

6. Construct the parachute. Here's a simple tutorial.

Data Output

CanSat Numbers

Weight= 350 g

Speed= 4 m/s

Schematics

Code

#include <OneSheeld.h>

int counter = 0;

void setup()
{
  //initialize 1Sheeld
	OneSheeld.begin();
//Save previous data
	Logger.stop();
	
}

void loop()
{
	/* Always check if the push button is pressed. */
  if(PushButton.isPressed())
  {
  	Logger.start("Telemetry");
  for(counter=0; counter<4; counter++){
    //log accelartion 
  		Logger.add("Xacc", AccelerometerSensor.getX());
  		Logger.add("Yacc", AccelerometerSensor.getY());
  		Logger.add("Zacc", AccelerometerSensor.getZ());
  		//Insert empty column
  		Logger.add(" ", " " );
		
		//log angular velocity
  		Logger.add("Xrate", GyroscopeSensor.getX() );
  		Logger.add("Yrate", GyroscopeSensor.getY() );
  		Logger.add("Zrate", GyroscopeSensor.getZ() );
		//Insert empty column
		Logger.add(" ", " " );
	
		//log euler angles
	  	Logger.add("Pitch", OrientationSensor.getX() );
	  	Logger.add("Yaw", OrientationSensor.getY() );
  		Logger.add("Roll", OrientationSensor.getZ() );
		//Insert empty column
		Logger.add(" ", " " );
		
		//log GPS coordinates
      	        Logger.add("Latitude", GPS.getLatitude());
                Logger.add("Longitude", GPS.getLongitude());
                //Insert empty column
		Logger.add(" ", " " );
		
		//log pressure
		Logger.add("Pressure", PressureSensor.getValue());
		//Insert empty column
		Logger.add(" ", " " );
                OneSheeld.delay(500);
		
		//log temperature
		Logger.add("temp", TemperatureSensor.getValue());
                OneSheeld.delay(500);
               //Insert empty column
		Logger.add(" ", " " );
               
		//Log the row
		Logger.log();
              OneSheeld.delay(1000);
  }
  Logger.stop();
  }
  counter=0;
}

#include <OneSheeld.h>

int counter = 0;

void setup()
{
  //initialize 1Sheeld
	OneSheeld.begin();
//Save previous data
	Logger.stop();
	
}

void loop()
{
	/* Always check if the push button is pressed. */
  if(PushButton.isPressed())
  {
  	Logger.start("Telemetry");
  for(counter=0; counter<4; counter++){
    //log accelartion 
  		Logger.add("Xacc", AccelerometerSensor.getX());
  		Logger.add("Yacc", AccelerometerSensor.getY());
  		Logger.add("Zacc", AccelerometerSensor.getZ());
  		//Insert empty column
  		Logger.add(" ", " " );
		
		//log angular velocity
  		Logger.add("Xrate", GyroscopeSensor.getX() );
  		Logger.add("Yrate", GyroscopeSensor.getY() );
  		Logger.add("Zrate", GyroscopeSensor.getZ() );
		//Insert empty column
		Logger.add(" ", " " );
	
		//log euler angles
	  	Logger.add("Pitch", OrientationSensor.getX() );
	  	Logger.add("Yaw", OrientationSensor.getY() );
  		Logger.add("Roll", OrientationSensor.getZ() );
		//Insert empty column
		Logger.add(" ", " " );
		
		//log GPS coordinates
      	        Logger.add("Latitude", GPS.getLatitude());
                Logger.add("Longitude", GPS.getLongitude());
                //Insert empty column
		Logger.add(" ", " " );
		
		//log pressure
		Logger.add("Pressure", PressureSensor.getValue());
		//Insert empty column
		Logger.add(" ", " " );
                OneSheeld.delay(500);
		
		//log temperature
		Logger.add("temp", TemperatureSensor.getValue());
                OneSheeld.delay(500);
               //Insert empty column
		Logger.add(" ", " " );
               
		//Log the row
		Logger.log();
              OneSheeld.delay(1000);
  }
  Logger.stop();
  }
  counter=0;
}

Credits

Fatima Fouda

1 project • 8 followers

Comments

Awards

Fourth Place

Smartphone Hacks Challenge

1Sheeld CanSat

Things used in this project

Hardware components

Story

What is a CanSat?

What is 1Sheeld?

Attempt

Steps

Data Output

CanSat Numbers

Custom parts and enclosures

Body

Upper Cover

Base

Schematics

1Sheeld Arduino Assembly

Fritzing File

Code

Untitled file

Untitled file

1Sheeld CanSat

Credits

Fatima Fouda

Comments

Awards

Embed the widget on your own site

1Sheeld CanSat

1Sheeld CanSat

Things used in this project

Hardware components

Story

What is a CanSat?

What is 1Sheeld?

Attempt

Steps

Data Output

CanSat Numbers

Custom parts and enclosures

Body

Upper Cover

Base

Schematics

1Sheeld Arduino Assembly

Fritzing File

Code

Untitled file

Untitled file

1Sheeld CanSat

Credits

Fatima Fouda

Comments

Awards

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