Glad you folk were able to get it working. I really like grovestream. Check the billing under your account (upper right corner somewhere) because they calculate charges based on transactions. I think my bill came to two bucks or so which I think is very reasonable for the level of service. I could actually lower that to nothing if I condensed the transactions. See, they allow multiple updates within a single transaction, so I could buffer things for 15 minutes and send it all at once, reducing my transaction count by a factor of fifteen since I'm doing every minute so far. Heck, just save up two of them reducing it by half, and I would easily fall below the 10,000 transactions.
Prowl around the site a lot as you have the time, they have a literal ton of features that could be fun to play with. I have a monitor that sends me email whenever I exceed a power usage threshold. I get mail when the heaters turn on and I'm using the stove. Helps keep me thinking about my power bill. They can send to the phone also, but I have lousy cell service out here in the sticks. I also set up an alarm that will send email to me when something goes wrong and data isn't updated regularly, that helps me chase down bugs in my house monitoring system.
These days I have my dozen or so Arduinos all talking to a Raspberry Pi which coordinates their activity and forwards the data off to all the cloud providers I've been testing. I sort of outgrew an Arduino for that particular job. Still have the arduinos all over the place though. People tell me I need a user's manual to live here.