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The YF-S402 water flow sensor consists of a plastic valve body
and other 1-wire protocol LEDs
Features 3 programmable push buttons (GPIO 21
making it easy to get started with development
child-safe materials for worry-free play
NOVEL 9V Battery Charger For AA/AAA/Ni-MH/NI HDMI The YF-S402 water flow sensorNOVEL 9V Battery Charger For AA AAA Ni MH NI NOVEL 9V Battery Charger, a versatile and reliable solution for powering your AA, AAA, and 9V Ni MH Ni Cd rechargeable batteries. Designed for everyday use, this charger ensures your devices stay powered without the hassle of frequent battery replacements. With its compact design and user friendly features, the NOVEL charger is perfect for home or office use. It supports multiple battery types, making it a
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