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Seeed XIAO nRF52840 board (BLE)
Delivery within 2 to 4 business days.
XIAO board built on nRF52840: Bluetooth 5, NFC, and a few microamps in sleep. For a sensor that must run for months on a battery.
Plugs into this board
Grove Shield for XIAO
Expansion board that turns a XIAO into a Grove platform: eight standard Grove connectors, including two I2C and one UART. No more wiring sensors one by one.
Delivery within 2 to 4 business days.