Higrow ESP32 Rev1 WiFi & Bluetooth Battery & DHT11 Ground Temperature And Humidity Sensor Modules

Chipset ESPRESSIF-ESP32 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor

FLASH QSPI flash/SRAM, up to 4 x 16 MB

SRAM 520 kB SRAM

KEY BOOT and reset

switch System power

switch Power indicator lamp red

USB to TTL CP2102

modular interface SD card、UART、SPI、SDIO、LED PWM、TV PWM、I2S、I2C、IRGPIO、capacitor touch sensor、ADC、DACLNA pre-amplifier

on-chip sensor Hall sensor、temperature humidity sensor

on-board clock 40MHz crystal oscillator

working voltage 2.3V-3.6V

working current about 130mA

working temperature range-40℃ ~ +85℃

environment temperature range normal temperature

size 193mm*29.5mm*10.65mm

Power Supply USB 5V/1A or 18650 battery

WIFI Standard FCC/CE/TELEC/KCC/SRRC/NCC

WIFI protocol 802.11 b/g/n/e/i (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 -98dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH

audio frequency CVSD&SBC audio frequency

wifi 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/iOS app

OS FreeRTOS

Software https://github.com/LilyGO/higrowopen

Compatible with Glunion.io