If you plan on using the gadgeteer sockets for the infrared senson, then no, you can either have the touch or the sensor hooked up. However, there are plenty (I’ve counted 7) AD pins along the expansion header to wire the sensor up and I would recommend doing just that.
Also, the Cobra II only works with 4.2, there is no firmware available that would allow 4.1 to be run on the Cobra II.
I’ve worked some of the Grove sensors but not the Infrared temperature sensor. As far as the Grove Gadgeteer Expansion module goes its a rather simple board and I’m sure I have a 4.2 version of it kicking around on my hard drive somewhere. You will still need to code the interface and such. Here are some CodeShare projects that I did using the Grove Expansion Module:
I have designed and built a $10 non contact thermal sensor for Gadgeteer.
I did not bring it to market for the following reasons:
[ol]There is no clear formula for emissivity setting.
It is unfocused, so the spot size is equvilant to the distance. 1 foot from the device the measured area is 1 foot. If you want to measure a small spot then you need to be very close. You can’t use a glass lens, as glass is opaque at these light frequencies.
I wrote the driver for it, but never polished it up, due to point 1 and point 2.[/ol]
I can publish the files if anybody want to take it up. Note that the sensor is a pain to solder with hot air, and impossible with a soldering iron. It measures 1.6mm x 1.6mm and has 8 solder balls on the bottom.
GMod(Errol) - I believe the spot size equal to the distance might be a problem for this application. And I don’t want to struggle with the soldering if I can avoid it.
Duke - That sounds possible. In the meantime, I found another sensor that might actually be better. It seems to have good accuracy and better onboard processing. Here’s a link: http://wiki.bildr.org/index.php/MLX90614. The datasheet even has a link to a video of it in use.
From what this newbie can tell, the interface ought to be compatible with one on the Cobra.
Does that one look better to you? I found it online for $19, quantity one.
Right. I checked the MLX90614ESF-BAA, which is 3.3v, single zone and standard field of view. I am trying to build something that’s portable, so I wanted it to have some range, but I haven’t really figured out how much.
Right now I see that there are evaluation boards that work with USB and other ways to experiment with this before I have to get to the I2C communications piece. I see I2C is on the edge of the Cobra II. That keeps me from messing about with even more components.
Already placed an order for the Cobra this morning. Can’t wait to start.
For the sensor, maybe I’ll start with something simpler, like the USB eval version and once I actually have some decent questions, I can ask those.
Again, you guys are awesome for helping.
Reminds me of the CompuServe days when a small bunch of people just wanted to help everyone else and it was a kinder, gentler Internet.