Parameter:
ESP32 DevKitC Development Board:
Module based on ESP32
EN: Reset button.
Boot: Download button. Press and hold the Boot key, while pressing the EN key once (do not release the Boot key at this time) to enter the Firmware Download mode and download the firmware through the serial port.
USB-to-UART bridge: A single chip USB-UART bridge that can provide a transmission rate of up to 3 Mbps.
Interface: TYPE-C interface, which can be used as a power supply for circuit boards or as a communication interface between PC and ESP32-WROOM-32 modules.
Communication: 2.4 GHz Wi Fi+Bluetooth
Processor: High performance Xtensa@32 Bit LX6 dual core processor, ultra low power co processor
Multiple peripherals: with the best power consumption performance, RF performance, stability, versatility, and reliability, suitable for various application scenarios and different power consumption requirements.
The development board can choose from any of the following three power supply methods:
TYPE-C interface power supply (default)
5V/GND pin power supply
3V3/GND pin power supply
Size: 54.4 * 27.9mm

ESP-WROOM-32D:
Chip: ESP32-D0WD
SPI: Flash 32 Mbit, 3.3 V
Crystal oscillator: 40 MHz
Antenna: onboard PCB antenna
Wi Fi protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps)
Aggregation of A-MPDU and A-MSDU, supporting 0.4 µ s protection interval
Working channel center frequency range: 2412~2484 MHz
Bluetooth protocol: compliant with BT v4.2 BR/EDR and BT LE standards
RF: NZIF receiver with sensitivity of -97 dBm; Class-1, Class-2, and Class-3 emitters; AFH
Integrated crystal oscillator: 40 MHz crystal oscillator
Integrated SPI flash 1: 4 MB
Working voltage/supply voltage: 3.0 V~3.6 V
Average working current: 80 mA
Minimum power supply current: 500 mA

ESP-WROOM-32U:
Chip: ESP32-D0WD
SPI: Flash 32 Mbit, 3.3 V
Crystal oscillator: 40 MHz
Antenna: External antenna connector, which needs to be used together with an external antenna
Wi Fi protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps)
Aggregation of A-MPDU and A-MSDU, supporting 0.4 µ s protection interval
Working channel center frequency range: 2412~2484 MHz
Bluetooth protocol: compliant with BT v4.2 BR/EDR and BT LE standards
RF: NZIF receiver with sensitivity of -97 dBm; Class-1, Class-2, and Class-3 emitters; AFH
Integrated crystal oscillator: 40 MHz crystal oscillator
Integrated SPI flash 1: 4 MB
Working voltage/supply voltage: 3.0 V~3.6 V
Average working current: 80 mA
Minimum power supply current: 500 mA

ESP32 WROVER:
Power supply voltage: 2.3V~3.6V
Frequency: 2.4GHz~2.5GHz
Installation type: SMT
Data rate: 150Mbps
Protocol: 802.11b/g/n
Storage capacity: 4MB
Wi Fi protocol: 802.11 b/g/n (802.11n, speed up to 150 Mbps)
Aggregation of A-MPDU and A-MSDU, supporting 0.4 µ s protection interval
Working channel center frequency range: 2412~2484 MHz
Bluetooth protocol: Complies with Bluetooth V4.2 BR/EDR and low-power Bluetooth standards
RF: NZIF receiver with sensitivity of -97 dBm
Class-1, Class-2, and Class-3 emitters; AFH
Module interface: SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI ® (Compatible with ISO 11898-1 protocol, i.e. CAN specification 2.0)
On chip sensor: Hall sensor
Integrated crystal oscillator: 40 MHz crystal oscillator
Integrated SPI flash: 4 MB
Integrated PSRAM: 8 MB
Working voltage/supply voltage: 2.3 V~3.6 V
Working current: average: 80 mA
Minimum supply current: 500 mA

Package include:
1X development board