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same as Raspberry Pi 3)
The buzzer can produce square waves
liquid cold water board
Properties:
Rain Drops Detection Sensor Module In Paksitan PIR Motion Sensor 220V same as Raspberry Pi 3)Product use: rain, rain sensor, can be used for all kinds of weather monitoring, and translated into output signals and AO. The sensor USES the high quality FR 04 double material, large area of 5. 5 * 4. 0 CM, treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance; The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA; With
