ESP32-WROOM-32 is a general-purpose Wi-Fi+BT+BLE MCU module with powerful functions and a wide range of uses. It can be used for low-power sensor networks and demanding tasks, such as voice coding, audio streaming, and MP3 Decoding etc.
The frequency adjustment range is from 80 MHz to 240 MHz. The user can cut off the power of the CPU and use the low-power co-processor to continuously monitor the peripherals
The status change or whether some analog quantity exceeds the threshold. ESP32 also integrates a wealth of peripherals, including capacitive touch sensors, Hall sensors,
Low noise sensor amplifier, SD card interface, Ethernet interface, high-speed SDIO/SPI, UART, I2S and I2C, etc.
The module integrates traditional Bluetooth, low-power Bluetooth and Wi-Fi, and has a wide range of uses: Wi-Fi supports a wide range of communication connections,
The operating system of ESP32 is freeRTOS with LwIP, and TLS 1.2 with hardware acceleration is built-in. The chip also supports OTA encryption
Upgrade, it is convenient for users to continue to upgrade after the product is released.

Specifications:
Test reliability: HTOL/HTSL/uHAST/TCT/ESD
Wi-Fi protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps)
A-MPDU and A-MSDU aggregation, support 0.4 µs guard interval
Frequency range 2.4 GHz ~ 2.5 GHz
Bluetooth-compatible protocol: Compliant with Bluetooth v4.2 BR/EDR and BLE standards
Bluetooth-compatible radio: NZIF receiver with -97 dBm sensitivity, Class-1, Class-2 and Class-3 transmitters, AFH
Bluetooth-compatibleaudio: CVSD and SBC audio
Module interface: SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, two-wire automotive interface (TWAI, compatible with ISO11898- 1)
On-chip sensor: Hall sensor
Integrated SPI flash: 4 MB
Working voltage/supply voltage: 3.0 V ~ 3.6 V
Package: ESP-32 * 5 PCS