A soil moisture sensor is an essential tool used in agricultural, gardening, and environmental monitoring systems. It is used to detect the amount of moisture in the soil, ensuring that plants receive the right amount of water for optimal growth. The corrosion-resistant probe enhances the sensor's durability, making it ideal for long-term use in outdoor and harsh environments.

Key Features

• Corrosion-Resistant Probe: The sensor probe is made from materials like stainless steel or platinum to prevent rust and corrosion when exposed to soil moisture over time. This makes it suitable for long-term use in outdoor conditions.
• Accurate Moisture Detection: The sensor is designed to provide accurate readings of the soil’s moisture level, helping ensure that the soil is neither too dry nor too wet for plant health.
• Easy to Use: It typically features an easy-to-read output such as analog or digital signals that can be interpreted by microcontrollers like Arduino, Raspberry Pi, or other automation systems.
• Versatile: Suitable for a wide range of applications, from gardening and agriculture to automated irrigation systems and plant care.
• Low Power Consumption: These sensors typically consume low amounts of power, making them ideal for battery-operated systems or continuous monitoring without high energy demands.
• Waterproof: The probe and other sensor parts are typically designed to be waterproof, ensuring reliable operation even in wet conditions.
• Compatible with Controllers: Works with popular microcontrollers like Arduino, ESP32, Raspberry Pi, etc., allowing easy integration into automated systems.
• Durability: Designed for both indoor and outdoor applications, it is built to withstand various environmental conditions, including soil acidity, humidity, and temperature changes.

Operation:

1. Connect the positive pole of the power supply and the negative pole of the power supply. Do not connect the negative pole, otherwise the chip may burn out. When the power supply is connected, [P] power indicator lights up. The module works normally.

2. Clockwise/counterclockwise adjustment of blue potentiometer can improve/decrease the detection sensitivity of probe.

3. When the potentiometer is clockwise adjusted to the output indicator of [S], it indicates that the range of regulation has exceeded the test threshold, and when the counter-clockwise adjustment is unable to adjust, it exceeds the threshold. When adjusting, they should not exceed the threshold value,otherwise they can not be used normally. Potentiometer regulation is used only for the mouth of [DO], and is not related to the output of [AO].

4.The output of [AO] is analog (voltage), which can be detected directly throughAD port of single chip computer.