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YF-S201 0.5 inch water flow sensor
Compact 0.5-inch water flow sensor with hall-effect pulse output for accurate real-time measurement. Ideal for DIY, irrigation, and home water monitoring.
Description
The YF-S201 0.5 Inch Water Flow Sensor is a compact and reliable sensor designed to measure water flow in small-diameter pipes. It features a hall-effect sensor and turbine rotor that outputs pulse signals proportional to the water flow, making it easy to interface with Arduino, Raspberry Pi, or other microcontrollers. Ideal for home water monitoring, irrigation systems, and DIY water projects, it delivers accurate, real-time measurements. Its durable construction ensures long-lasting performance in a variety of water applications.
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• Mainboard: ATmega2560 Silent board
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Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes
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