Seeeduino-XIAO-Expansion-Board/
I got one of these yesterday:
https://wiki.seeedstudio.com/Seeeduino-XIAO-Expansion-Board
It is a pretty nice and simple expansion board for the XIAO ESP32s i recently purchased. It includes an RTC battery holder, a microSD slot, a buzzer, a programmable button, a reset button, a PiPo battery jack, an on/off switch, an OLED display, and Grove connectors for I2C and UART connections.
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