LILYGO® TTGO T-Higrow BEM280 ESP32 WiFi Bluetooth DHT11 Soil Temperature and Humidity Detection Electrolyte Sensor Module

SKUH45246

0 Reviews

USD 64.99

Wholesale Prices :

Qty:	4-7	>=8
Price:	$48.59	$45.89

Qty:

In stock

30-day Return Policy, Learn More

Description

weight: 485 g

Product main upgrade function attributes:

1: Change the original ESP32 module to a single ESP32 chip.

2: The charging IC is changed from the original TP5400 to TP4054.

3: The original MICR seat is changed to TYPE-C.

4: The original normal power supply mode is changed to the button sleep wake-up mode (or the customer does the timing wake-up by himself).

5: The size of the board is 45MM smaller than the previous length, and the width is increased by 2.54MM

Added part:

1: Added sleep button wake-up function (IO35)

2: Added the function of testing soil salinity (CD4060BM+TL034IDR)

3: Increase the intensity test of light (BH1750FVI)

4: Reserved external device expansion (single bus serial port IIC----21~22)

Advantage:

The battery life is much longer than before. In the case of testing moisture, you can test the soil salt and photosynthetic absorption, reasonable fertilization and proper sunshine.

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
USB to TTL	CP2104 (update to CH9102F)
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	DHT12
Reserved extension interface	21~22
Working current	About 150 mA
Sleep current	About 220 uA
Working temperature range	-4O°C~+85°C
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	(Note: battery is not includes)
Charge IC	TP4054
JST Connector	2Pin 1.25mm
USB	Type-C
Wi-Fi	Description
Standard	FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC (ESP32 chip)
Protocol	802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and AMSDU polymerization, support 0.4uS Protection interval
Frequency range	2.4GHz~2.5GHz(2400M~2483.5M)
Transmit Power	22dBm
Communication distance	300M
Bluetooth	Description
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	Description
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	Pv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
User Configuration	AT+Instruction set, cloud server, android/iOSapp
OS	FreeRTOS