Yes, that will work. You have to use those AP in FlexConnect mode.
See below
https://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/mobility-express/q-and-a-c67-734485.html?
Q. What is the Cisco ® Mobility Express Solution?
A. Mobility Express integrates wireless LAN (WLAN) controller functions into the Cisco Aironet ® 3800, 2800, 1850, 1830, 1815, 1560 and 1540 Series Access Points. As such, Mobility Express is the latest in a series of Cisco efforts to turn WLAN controllers into a software function that any network component can host. Cisco controller capabilities also can be housed in standalone appliances (Cisco Wireless LAN Controllers, or WLCs), Cisco switches, Cisco routers, a private cloud, and a public cloud.
Simple by design, Mobility Express is ideal for small to medium-size deployments serving up to 100 access points and 2,000 clients. It brings the best practices and quality of Cisco’s large- and medium-scale solutions to smaller-scale implementations without additional cost or complexity.
HTH
Rasika
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