Velleman 8055 vs Phidgets 8/8/8

Anyone saavy on both of these devices and can give a comparison? And an opinion? Then please feel free to express an opinion about price comparisons.

Reply to
Randall P. Hootman
Loading thread data ...

While I have no experience with the Phidgets board, looking at the docs and the price, it really looks interesting.

My experience with the K8055 is interesting, I found it for $29.90 at "You Do It Electronics," in Needham MA.

I was unable to get usb_bulk_read and usb_bulk_write to work on all platforms. I had to settle for the usb_interrupt calls. The K8055 uses an R/C circuit to take a 22KHZ PWM signal and make it an analog output. It has only two analog inputs and two analog outputs. It has 8 digital outputs, but only 5 digital inputs.

The 8055 also allows all the channels to bet set with one USB packet, this is useful because it will allow a fairly efficient transfer mechanism to be written.

If you are looking for a Linux library, check out

formatting link
have it in a CVS repository, and am integrating it into my sub-$500 robot project.

I would like to hear more about the Phidgets device.

Reply to

I only have experience with the Phidgets product, but it does what I want.

-- D. Jay Newman

Reply to
D. Jay Newman

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.