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Sense Stage Workshop » Sensors

Archive

Archive for the ‘Sensors’ Category

Boards and sensors for the arctic

July 27th, 2009

Documentation of the connections from the board to the sensors.
Click on each photo for more detailed info.

One of the boards looks slightly different, as it was the prototype board for the final board layout.
It hooks up to the SparkFun Rh/T sensor, and the gas sensor has a 4pin hookup, instead of 3pins.

complete board with sensors, battery and antenna attached

complete board with sensors, battery and antenna attached

Closeup of the whole board running

Closeup of the whole board running

The whole board without connections

The whole board without connections.
Bottom to top:
2 pins: GND and 3.3 V on the MiniBee (left to right)
11 pin header: GND, RAW and analog pins on MiniBee (left to right)
2 pins: GND, RAW - battery connections (left to right)
Left 3 pins: D13, D11, D12 (bottom to top)
Left 4 pins: connections to Rh/T, (DATA, GND, Vcc, Clock) (top to bottom)
Mid 3 pins: connections to Gas sensor, (GND, Vcc, input) (left to right)
Right 6 pins: connections to accelerometer (CS (=Vcc), MISO (=GND), MOSI (=SDA), SCL, GND, Vcc) (bottom to top)

Connection to the gas sensor

Connection to the gas sensor. Black marked wire should be on the right.

Connection to the Parallax Rh/T sensor

Connection to the Parallax Rh/T sensor.
Connection of the 4 pin connector.
Left to right:
Ground, Clock, not connected, Data

Connection to the Parallax Rh/T sensor

Connection to the Parallax Rh/T sensor.
Connection of the 4 pin connector.
Left to right:
Data, not connected, Clock, Ground

Another closeup of the connection to the Parallax Rh/T sensor

Another closeup of the connection to the Parallax Rh/T sensor

Closeup of the connection on the other side of the Parallax Rh/T sensor

Closeup of the connection on the other side of the Parallax Rh/T sensor.
Single pin connection (Vcc) on the left pin.
Should be opposite of the Data pin on the other side.

Connection of the<br />
accelerometer

Connection of the accelerometer.
Vcc (black line on board) to the black lined cable.
On the board, the cable is the furthest away from the MiniBee connections.

Overview of the alternative board (prototype)

Overview of the alternative board (prototype)

Connections to the digital pins of the other type board (original prototype)

Connections to the digital pins of the other type board (original prototype)

Author: marije Categories: Projects, Sensors Tags:

Nodes on the network

May 18th, 2009
General:
 nodes in range 101-199, raw sensor data
 nodes in range 201-299, scaled, decoded, reordered and labeled sensor data
 For your own nodes: use a range above 300

A list of all the Nodes and Slots with descriptions

Author: marije Categories: Data, Sensors Tags: , ,

SensorWiki.org

May 11th, 2009

www.sensorwiki.org

The aim of this project is to provide a thorough review of the main types of sensing technologies used in musical applications. As new sensing technologies become available, this open space will provide an up-to-date resource for researchers in the field, complementing information available in books and textbooks such as Trends in Gestural Control of Music (Wanderley and Battier, eds. 2000) and Digital Musical Instruments: Control and Interaction Beyond the Keyboard (Miranda and Wanderley, 2006).

More than 30 techniques are described, along with their sensing principles and examples of actual devices that implement those principles. For each sensing technique, one or more devices are described with information on how to obtain them (links to distributors, prices), as well as photos of the device and necessary setup/conditioning circuits, circuit diagrams, one or more videos showing the devices used in practice, and finally, simulation circuits compatible with the software CircuitMaker.

Author: Joe Malloch Categories: Resources, Sensors Tags:

Camera motion tracking

May 10th, 2009

There will be an infrared camera looking at part of the stage from the top. Using the software MotionTrackOSC, we can do blob-tracking, resulting in a number of tracked areas, as movement occurs in them.
The camera feed will also be available for use with other software.

Author: marije Categories: Sensors Tags: , ,

Conductive foil

May 10th, 2009

An area of the floor will be covered with conductive foil. Then we will have a pair of shoes and a pair of gloves with conductive pads on the soles and palms. If you make a contact with these shoes or gloves, you will measure the distance between the feet or hands, as the resistance changes as the distance between the two points on the foil is longer.

Author: marije Categories: Sensors Tags: , , ,

Paper pressure sensor

May 10th, 2009

We will be using a number of pressure sensors made of 3 layers of conductive paper. These sensor act as force resistive sensors (FSRs). We have made them in tiles with each 4 sensitive pads, to be laid out on the floor.

Paper FSRs and Latex/Fabric Traction Sensors: Methods for the Development of Home-Made Touch Sensors. by Rodolphe Koehly, Marcelo Wanderley, Denis Curtil. Paper for the NIME 2006.

Author: marije Categories: Sensors Tags: , , ,

Stretch sensor

May 10th, 2009

We will have 2 elbow and 2 knee units measuring the current state of the joint. We measure this with a stretch sensor that goes along the elbow or knee, so that as you bend the joint, the sensor stretches out.

From the Robotshop website:

4″ (or 6″) long flexible cylindrical cord
• Measures stretch, displacement and force
• Changes resistance when stretched

The Images Scientific Flexible Stretch Sensor is a unique component that changes resistance when stretched. When relaxed the sensor material has a nominal resistance of 1000 ohms per linear inch. As the stretch sensor is stretched the resistance gradually increases. When the sensor is stretched to 150% of its original length (2″ X 150% = 3″), its resistance will approximately double to 2.0 Kohms per inch.

The stretch sensor is a new way to measure stretch, displacement and force. The sensor is a flexible cylindrical cord with hook electrical terminals at each end. The sensor measures 4 (or 6) inches long, not including the electrical terminals, and only .060 inches diameter!

Amount in workshop: 2 times 4″ and 2 times 6″

Author: marije Categories: Sensors Tags: ,

2-axis accelerometer

May 9th, 2009

From the datasheet:

The ADXL320 is a low cost, low power, complete dual-axis accelerometer with signal conditioned voltage outputs, which is all on a single monolithic IC. The product measures acceleration with a full-scale range of ±5 g (typical). It can also measure both dynamic acceleration (vibration) and static acceleration (gravity).

Amount in the workshop: 2
datasheet

Author: marije Categories: Sensors Tags:

3-axis accelerometer

May 9th, 2009

From the datasheet:

The LIS302DL is an ultra compact low-power three axes linear accelerometer. It includes a sensing element and an IC interface able to provide the measured acceleration to the external world through I2C/SPI serial interface.

Amount in workshop: 2
datasheet
breakout board schematic

Author: marije Categories: Sensors Tags:

Light sensor

May 9th, 2009

A light sensor is a light sensitive resistor. Its resistance decreases as it catches more light.

Amount in workshop: 24 as part of the “environmental unit” and 14 on other sensor nodes.
datasheet

Author: marije Categories: Sensors Tags: