Note: Since BME280 already includes temperature and humidity sensor, it already includes the function of DHT11, we have removed the DHT11 sensor on the BME280 version to reduce costs LILYGO®TTGO T-Higrow ESP32 WiFi And Bluetooth Battery And DHT11 Soil Temperature And Humidity Photometric Electrolyte Sensor

Hardware Specifications

Chipset:ESPRESSIF-ESP32 (Wi-Fi & Bluetooth)240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor

FLASH:QSPI flash 4MB

SRAM:520 kB SRAM

Button:IO0

Wake up :IO35

Reset

USB to TTL:CP2104

Modular interface:UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC、DACLNA pre-amplifier

On-board clock: 40MHz crystal oscillator

Temperature and humidity sensor DHT11

Reserved extension interface:21~22

Working current:About 150 mA

Sleep current:About 220 uA

Working temperature range: -40℃ ~ +85℃

Size&Weight:155.04358.19mm(13.65g)

Power Supply Specifications

Power Supply Input:USB 5V/1A

Charging current:500mA

Battery Input: 3.7-4.2V

Battery:3.7V lithium battery

Charge IC:TP4054

JST Connector:2Pin 1.25mm

USB:Type-C

Wi-Fi

Standard:FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC (ESP32 chip)

Protocol:802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval

Frequency range:2.4GHz~2.5GHz(2400M~2483.5M)

Transmit Power:22dBm

Communication distance:300m

Bluetooth

Protocol:Meet bluetooth v4.2BR/EDR and BLE standard

Radio frequency:With -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH

Audio frequency CVSD&SBC audio frequency

Software specification

Wi-Fi Mode:Station/SoftAP/SoftAP+Station/P2P

Security mechanism:WPA/WPA2/WPA2-Enterprise/WPS

Encryption Type: AES/RSA/ECC/SHA

Firmware upgrade:UART download/OTA（Through network/host to download and write firmware）

Software Development:Support cloud server development /SDK for user firmware development

Networking protocol:IPv4、IPv6、SSL、TCP/UDP/HTTP/FTP/MQTT

User Configuration:AT + Instruction set, cloud server, android/iOSapp

OS:FreeRTOS

Moore Details

Link:https://github.com/Xinyuan-LilyGO/TTGO-HiGrow

3D Shell Print Download Link：

Link:https://www.tinkercad.com/search?category=tinkercad&q=HiGrow

Product Pin

Product Size

Product Detail

Use Legend

ALG 3000mAH 18650 battery could make ESP32 working.

This capacitive soil moisture sensor differs from most of the resistive sensors on the market, using 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 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 tank when raising fish. Of course, it can also test other temperatures as long as you want.

Shipping List:

If you buy T-Higrow,the list is

1 x TTGO T-Higrow

​2 x Pin

1 x Power cable

If you buy T-Higrow Kit,the list is

1 X T-Higrow Kit

(Assembled，Include T-Higrow Module ,White Shell and Built-in 200 mAh lithium battery）

If you buy T-Higrow Shell,the list is

1 X T-Higrow Shell

3 X Small screws