- Sun Mar 22, 2009 1:50 pm
#68996
I just bought the Sparkfun HRMI (http://www.sparkfun.com/commerce/produc ... ts_id=8661) and I'd like to eventually interface it with my Arduino but I'm having trouble with just the basic setup from the board to my computer via USB.
I've been trying to get it to recognize my Polar T31 coded chest strap while powered over USB, hooked to my mac, but to no avail. Just to make sure it wasn't a problem with my strap, I bought a Polar watch with coded Wearlink strap and tested my strap with that. It worked fine so I tried using the including Wearlink with the HRMI and it didn't seem to recognize that either. I then used Quickterm and ran a "G 8" command while wearing each of the straps (one at a time) and got back "3 122 0 0 0 0 0 0 0 0", "3 1270 0 0 0 0 0 0 0" etc. I think the manual is saying that the 3 in the output means "Bad Data". All of the jumpers on the board are in the default positions and according to the manual the status light should be blinking if it was picking up a heart rate but it only shows a constant green. Is there something I'm missing here? Is it possible I have a faulty board?
I've been trying to get it to recognize my Polar T31 coded chest strap while powered over USB, hooked to my mac, but to no avail. Just to make sure it wasn't a problem with my strap, I bought a Polar watch with coded Wearlink strap and tested my strap with that. It worked fine so I tried using the including Wearlink with the HRMI and it didn't seem to recognize that either. I then used Quickterm and ran a "G 8" command while wearing each of the straps (one at a time) and got back "3 122 0 0 0 0 0 0 0 0", "3 1270 0 0 0 0 0 0 0" etc. I think the manual is saying that the 3 in the output means "Bad Data". All of the jumpers on the board are in the default positions and according to the manual the status light should be blinking if it was picking up a heart rate but it only shows a constant green. Is there something I'm missing here? Is it possible I have a faulty board?