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TSW-20 Water Turbidity Sensor with a red amplifier board
The TSW-20 Water Turbidity Sensor measures water clarity using light scattering and provides an analog output via a red amplifier board for microcontroller-based projects.
The TSW-20 Water Turbidity Sensor with Red Amplifier Board is a reliable sensor designed to measure the turbidity (cloudiness) of water by detecting the amount of light scattered by suspended particles. Higher turbidity indicates the presence of dirt, silt, or other contaminants, making this sensor ideal for water quality analysis.
The sensor uses an infrared LED and photodiode pair to detect light scattering and includes a red signal conditioning/amplifier board that provides a stable analog output compatible with microcontrollers such as Arduino, ESP32, STM32, and Raspberry Pi. Its waterproof probe and fast response make it suitable for continuous monitoring.
The TSW-20 turbidity sensor is widely used in water treatment systems, aquaculture, environmental monitoring, smart irrigation, laboratory experiments, and educational projects, offering an easy and cost-effective solution for turbidity measurement.

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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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