“Great little unit. Used with Arduino IDE, a little tricky to get everything working as not one place for information. Sadly the product is now being discontinued.”
“It ceratinly works as advertised but I dropped a star because there is no straightforward way to change the IP address so that it can become a member of the household network. Hoever, I believe it is possible by uploading a custom sketch of your own and by using averdude (part of the Arduino IDE) and some research, download the onboard programe binary for later reinstating, if necessary. If anyone has done this I like to know.”