Grove - Speaker Plus Brand_Dagu It's a nice compact plastic

It's a nice compact plastic package

ANAVI Gas Detector doesn’t have any built-in MQ gas sensor and the user can easily replace only the sensor

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each module can be set to address

Grove - Speaker Plus Brand_Dagu It's a nice compact plasticThe Grove Speaker Plus includes a powerful amplifier driver board, and a speaker. With the onboard potentiometer, you can easily adjust the output volume. You can replace the speaker with other speakers, as it adopts a separate and replaceable speaker design. The speaker generates different tones, with different input frequencies and is easy to control with the PWM signal. You could create distinctive sound effects, play your favourite songs, or build