The Grove AI HAT is designed to assist the Raspberry PI with running edge computing workloads. The board has a Sipeed MAix M1 module that integrates a Kendryte K210 dual-core processor along with numerous connectors, ports and sensors. The Grove AI HAT is available to pre-order on Seeed Studio for US$24.50 and will ship in mid-June.
https://www.notebookcheck.net/Grove-AI-HAT-A-powerful-and-compact-Raspberry-Pi-HAT-for-edge-computing-workloads-that-costs-less-than-US-25.420093.0.html