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This is a TTGO T-Higrow ESP32 Wifi Bluetooth Humidity Photometric Electrolyte Sensor Unsoldered. The capacitive soil moisture sensor differs from most of the resistive sensors on the market, using the capacitive sensing principle to detect soil moisture. It avoids the problem that the resistance sensor is easy to corrode and greatly prolongs its working life.S18B20 waterproof temperature sensor is used for t-higrow and t-watch with the t-grove interface. For example, it can be used with t-higrow to test the temperature and humidity of flowerpot soil and environment, as well as the water temperature of fish tanks when raising fish.
Specifications:
| Chipset | ESPRESSIF-ESP32 (Wi-Fi & Bluetooth)240MHz Xtensa® single-/dual-core 32-bit LX6 |
| Input Voltage(V) | 3.7-4.2V |
| Charging current(mA) | 500mA |
| Sleep current(uA) | 220 uA |
| Battery Required | 3.7V lithium battery |
| Flash Memory | 4MB |
| SRAM Memory | 520 KB |
| Frequency range | 2.4~2.5GHz |
| Transmit Power( | 22dBm |
| Communication distance(m) | 300 m |
| On-board clock Frequency(MHz) | 40 MHz |
| Temperature and humidity sensor | DHT11 |
| Working Temperature Range | -40~85℃ |
| Length (mm) | 155 |
| Width (mm) | 35 |
Features:
It is easy to carry anywhere.
the temperature sensor makes it unique because of the sensors’ waterproof property.
Package Includes:
1 x Unsoldered TTGO T-Higrow ESP32 Wifi Bluetooth Humidity Photometric Electrolyte Sensor
