SKU: SENS-0431
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LilyGO T-Higrow BME280 WiFi Bluetooth Soil Moisture Sensor Module - Unsoldered

₹1,569.00 (Inclusive of all taxes)
Out of Stock

The LilyGO T-Higrow is a capacitive soil moisture and environmental monitoring module featuring a BME280 sensor for temperature, humidity, and barometric pressure, integrated with ESP32 for WiFi/Bluetooth connectivity. Designed for low-power IoT agriculture and environmental projects, it is compatible with Arduino and ESP-IDF frameworks.

Features

  • Capacitive soil moisture sensing principle eliminates electrode corrosion for long-term reliability.
  • Integrated BME280 sensor provides temperature, humidity, and barometric pressure data.
  • Powered by ESP32 (ESP32-S3) for dual-mode WiFi and Bluetooth 5.0 (BLE) connectivity.
  • Ultra-low power design with 150 mA active current and 220 µA deep sleep current.
  • Supports USB 5V power and 3.7V Li-ion battery input with onboard charging (500 mA).

Out of stock

Description

The T-Higrow module employs a capacitive sensing method to measure soil moisture, a significant improvement over traditional resistive sensors which are prone to electrolytic corrosion and degradation. This approach ensures stable, long-term measurements in various soil types. The onboard Bosch BME280 environmental sensor delivers precise readings of ambient temperature, relative humidity, and atmospheric pressure, providing a comprehensive environmental profile.

Built around the ESP32-S3 microcontroller, the module offers robust wireless communication via 2.4 GHz WiFi and Bluetooth Low Energy (BLE), enabling remote data logging and control in IoT applications. Its power architecture is optimized for field deployment, supporting operation from a USB source or a rechargeable 3.7V lithium battery, with a deep sleep mode that extends battery life significantly for solar-powered or periodic monitoring setups.

Key Features

  • Corrosion-resistant capacitive soil moisture sensor for extended operational lifespan.
  • High-precision Bosch BME280 sensor for environmental temperature, humidity, and pressure.
  • ESP32-S3-based core with integrated 2.4 GHz WiFi and Bluetooth 5.0 (BLE) connectivity.
  • Optimized low-power consumption with configurable active and deep sleep modes.
  • Flexible power supply via Micro-USB (5V/1A) or 3.7V Li-ion battery with onboard charging circuit.
  • Compact form factor (155mm x 36mm) designed for easy integration into planters and enclosures.
  • Wide operating temperature range from -40°C to +85°C for harsh outdoor environments.
  • Open-source firmware compatibility with Arduino IDE and ESP-IDF for custom application development.

Applications

  • Precision agriculture and smart irrigation systems for soil moisture monitoring.
  • Greenhouse environmental control and climate data logging.
  • IoT-based plant health monitoring for home gardening and horticulture.
  • Distributed environmental sensing networks for research and data collection.
  • Battery-powered, solar-assisted remote field monitoring stations.

Technical Specifications

Item TypeSensor Module
Model NameT-Higrow BME280
Soil Sensing PrincipleCapacitive
Environmental SensorBME280 (Temp, Humidity, Pressure)
MicrocontrollerESP32-S3
Wireless ConnectivityWiFi 2.4 GHz, Bluetooth 5.0 (BLE)
Transmit Power22 dBm
Communication DistanceUp to 300 m (open area)
Active Current150 mA
Deep Sleep Current220 µA
Power SupplyUSB 5V / 1A
Battery Input3.7V - 4.2V Li-ion
Charging Current500 mA
Operating Temperature-40°C to +85°C
Dimensions (L x W)155 mm x 36 mm
Weight20 g

Frequently Asked Questions

What is the difference between this capacitive sensor and resistive soil moisture sensors?

This module uses a capacitive sensing principle, which measures the dielectric constant of the soil. Unlike resistive sensors, it does not pass a direct current through the soil electrodes, thereby eliminating electrolytic corrosion and significantly extending the sensor's operational lifespan, especially in continuously moist environments.

How do I power the T-Higrow module and what is its battery life?

The module can be powered via the Micro-USB port (5V/1A) or a connected 3.7V lithium battery. Battery life depends heavily on the reporting interval. Using the deep sleep mode (consuming only 220 µA) between readings can extend a standard 18650 battery's life to several weeks or even months, making it ideal for solar-powered remote stations.

What wireless protocols are supported and how do I program the module?

The onboard ESP32-S3 supports both 2.4 GHz WiFi (for IP connectivity) and Bluetooth Low Energy (BLE) for short-range communication. You can program it using the Arduino IDE with the ESP32 board package or the official ESP-IDF framework, allowing you to customize data transmission intervals, connect to cloud platforms, and implement power-saving logic.

Does this module include the BME280 sensor, and what environmental data does it provide?

Yes, the module includes a Bosch BME280 sensor. It provides three key environmental parameters: temperature (with high accuracy), relative humidity, and barometric pressure. This makes the module suitable not only for soil moisture but also for comprehensive microclimate monitoring in agricultural or environmental science applications.

Package Includes

  • 1 x LilyGO T-Higrow BME280 WiFi Bluetooth Sensor Module (Unsoldered)

Additional Information

Weight 0.02 kg
Dimensions 15.5 × 3.6 cm