Great to hear from you, and that's awesome that you have a grant to purchase supplies for the Internet of Things unit. We are still wrapping up developing the unit, but I can tell you the draft list of materials that we plan to be putting in our official Code.org kit (which Adafruit will be posting on their site closer to the summer).
Our classroom kits will include:
15 Circuit Playground Boards --> note that if you buy circuit playgrounds right now they may not have some of the necessary software pre-installed, so you will likely need to follow up with us after you get them for instructions on how to get that on the board if they're not working right. We are working with Adafruit to make sure that all the boards have the right software installed so they are more "plug and play". URL: https://www.adafruit.com/product/3000
15 USB cable A/MicroB - 3ft --> One per board. URL: https://www.adafruit.com/product/592
10 x Small Alligator Clip kits (set of 12). URL: https://www.adafruit.com/product/592
12 x Multicolor LED Sequins (pack of 5) URL: https://www.adafruit.com/product/3377
Note that our classroom kits assume a 2:1 student to board & cable ratio. Depending on the amount of money you have, you can of course buy more.
CS Discoveries Team