<< return to Pixycam.com

Data from Pixy via SPI is not what I'm expecting

Hello all,

I’m communicating with my Pixy via SPI and an MSP430F2274. However, I’m not getting the data that I expect.

My code first waits until it receives two sync words (0xaa55), and then it begins recording useful information.

However, after I receive the two sync words, it appears that I receive 14 more bytes of data, not 12 as suggested in the Serial Protocol section of the Pixy Wiki. Also, the signature number does not match the one I’m expecting. In PixyMon, I only set up Signature 1 (and cleared the rest). However, it looks like I’m getting a signature number of 0xD8. Do you know why this might be?

I attached a picture showing the data that I get from Pixy when I talk to it via SPI.

Any help will be much appreciated! Thanks!

Hi John,

What firmware version are you using? Also, what color code mode are you using?

Scott