(BEM280) WiFi Bluetooth DHT11 Soil Temperature and Humidity Detection Electrolyte Sensor Module

(BEM280) WiFi Bluetooth DHT11 Soil Temperature and Humidity Detection Electrolyte Sensor Module Description

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.

Specifications:
Hardware:
Chipset: ESPRESSIF-ESP32 (Wi-Fi & Bluetooth)240MHz Xtensa single- /dual-core 32-bit LX6 microprocessor.
FLASH: QSPI flash4MB.
SRAM: 520 kBSRAM.
Button: IO0.
Wake up: IO35.
USB to TTL: CP2104 (update toCH9102F).
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 220uA.
Working temperature range: -4O~+85C.
Size&Weight: 155.04*35*8.19mm(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:
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:
Protocol: Meet Bluetooth V4.2BR/EDR and BLE standard.
Radio frequency: With -97dBm sensitivity NZIF receiverClass-1,Class-2&Class-3emitter 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, cloudserver,android/iOSapp.

Package includes:
1 xT-Higrow ESP32 WiFi Bluetooth Module