TTGO® T-Higrow ESP32/Bluetooth Soil Temp & Humidity

Integrated ESP32 Wi-Fi & Bluetooth Telemetry: Built around the high-performance ESP32-WROOM dual-core SoC, enabling real-time wireless telemetry over 2.4 GHz Wi-Fi and Bluetooth LE.

Dual Soil Temperature & Moisture Sensing: Combines a capacitive soil moisture sensor probe with an onboard temperature sensor for continuous substrate health analysis.

Capacitive Corrosion-Resistant Probe: Uses a non-exposed capacitive PCB design that eliminates electrolytic corrosion for extended lifespan in damp soils.

Integrated Battery Management & Charging: Features onboard lithium battery charging circuitry and low power sleep modes, making it ideal for remote, battery-powered IoT nodes.

Open-Source & Smart Home Ready: Fully compatible with the Arduino IDE, ESPHome, and Home Assistant ecosystems for seamless smart garden automation.

Board Material: High-grade FR-4 glass-epoxy PCB with a capacitive sensing probe and integrated ESP32 module.

Technical Specifications:

Core Processor: ESP32-WROOM-32 (Dual-Core 240MHz, 4MB Flash).

Wireless Connectivity: Wi-Fi 802.11 b/g/n + Bluetooth v4.2 BR/EDR & BLE.

Sensor Array: Capacitive Soil Moisture Probe + Onboard Temperature/Humidity Sensor.

Operating Voltage: 3.3V DC / Lithium Battery Powered (3.7V).

Board Color: Black PCB with White Silkscreen & Gold-Plated Probe Traces.

Usage Advice: Insert the capacitive probe portion directly into moist soil up to the silkscreen line; keep the top ESP32 component area and battery connector above ground and dry.

Maintenance: Keep the top control electronics protected in a weatherproof enclosure when deploying outdoors; clean soil residue off the probe using a soft cloth and isopropyl alcohol.

Essential All-in-One Smart Garden Node: Position as the ultimate wireless MCU + sensor board for automated plant monitors, smart greenhouses, and Home Assistant agricultural setups.

Highlight Capacitive Probe Longevity: Emphasize how capacitive sensing prevents electrode degradation, delivering years of maintenance-free soil measurements compared to basic resistive sensors.

Recommended Cross-Sell Add-ons: Pair with Analog Capacitive Soil Moisture Sensor, 3-in-1 Integrated Sensor Temperature + Humidity + PH, SHT31 Soil Temperature & Humidity Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Soil Moisture Sensors collection page as your flag-ship wireless ESP32 soil monitoring node.