- Get Galvanic Skin Response (emotional arousal) working: circuit and graph data in Processing
- Build the circuit with the RFID reader and the Xbee
- Program/Code
- Perf board - forget about the breadboard
- Work on the design of the device.
Galvanic Skin Response
I started by researching how to build a GSR ( see links page) and after seeing different circuits I started by doing the simplest one with arduino and graphing the data in Processing. (click here to see the videos)
Building the circuit with the RFID and the Xbees
Knowing that Xbee could worked by themselves, without Arduino and that they have Analog inputs, I asked Tom tif I could also connect the Xbee with the RFID reader. He said: "let's try!". So he spend sometime building the circuit with me, going step by step: how to configure the Xbee's ( one is the sender; the other is receiving); how to get the RFID tag ID in Processing; and how to put the RFID reader with the Xbee + the analog sensor.
It was very helpfull to have this detailed explanation. I think that I lost the fear, since then and I got my hands into the hard work - building everything by my own and coding the program that is always receiving the analog data from the GSR sensor ( timebased) and that also receives serial data when the visitor tags an Artwork ( event based)
Basically, I was working with 2 different coded from Tom Igoe ( Xbee packet reader +ID Innovations RFID Reader). One was reading the serial port as Bytes and the other as String. So I had to combine them together and parses the data that was coming. It was a long process to try to get all the code working but I has very happy when I finish it!!
It's still a mess, but take a look here at the code. Is graphing the data from the GSR in real time and also let u know which artwork is tagged.
Going to Perf Board
Build the device
