“An amazing little board packed with peopherals. Just bought it as a jig for an SWD connection to program seeed nrf52840 boards which works very well, and have already used the display and Grove connectors.
Expect to use more of it soon.
Really good value.”
“Very convenient for prototyping with Xiao boards. The reset button makes uploading code much more convenient than fiddling with jumper wires. There’s a useful assortment of sundries including a tiny OLED display, buzzer programmable button, led and added bonus of on-board LiPO connector and charger.”