Octopus

micro bit sensor is present in micro bit board contain almost every for better functioning.
ELECFREAKS has micro bit sensor, kits, and modules.
Among them, the micro octopus series is a micro bit sensor series based on micro:bit developed by ourselves.
The micro bit sensor series is compatible with most expansion boards on the market. It contains a sound micro bit sensor, LED micro bit sensor, CO2 micro bit sensor, O2 micro bit sensor, etc.
This set of micro octopus sensors can realize various functions you want.