I noticed in the i2c application notes that the i2c protocol is patented, do I need an I2C licence to make & sell devices that use the SSP port on PICs? I really have no intention of selling them as I2C devices, I would just like to use the built-in hardware to make a small network of somewhat similar devices. Are there any considerations that I should be aware of? Jeff -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics