x5 IO Expander Optical Connector 3-Wire
$20.00
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Detail Product Information Feature List Easy to connect Optical Infrared Water Level Sensor. 390 ohms pull-up and 4.7k ohms pull-down to drive the signal. Supports two gpio lines D1 and D2. 25.89mm x 15.4mm This product was designed to be used with the IO Expander.
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