3PCS ESP-WROOM-32 Development Board USB-C, 2.4Ghz Dual Mode Wifi+Bluetooth Dual Core Microcontroller for Arduino IDE, Support Arduino, Micropython, Nodemcu, AP/STA/AP+STA, CP2102 Serial Chip

Description

RAM Memory Installed	0.5 MB
Memory Storage Capacity	4 MB
CPU Model	Core i5
Processor Speed	240 MHz
Connectivity Technology	LAN, USB
Operating System	Linux
Processor Brand	Espressif Systems
Wireless Compability	802.11bgn, Bluetooth
Compatible Devices	[GENERIC] Multiple devices with compatible connections
RAM Memory Technology	DDR
Processor Count	2
Total Usb Ports	1
Model Name	EL-SM-012
Built-In Media	/
Number of Packs	3
Number of Items	3
Unit Count	3 Count
Country of Origin	China
Item Weight	0.05 Kilograms
Model Number	EL-SM-012
Mfr Part Number	EL-SM-012
Warranty Description	Six months
Model name	EL-SM-012
RAM memory installed size	0.5 MB
Memory storage capacity	4 MB
CPU model	Core i5

Product Description

Build connected embedded projects with the ELEGOO 3-Pack ESP32 Development Board Set. Each board combines the classic ESP-WROOM-32 module, a USB-C connector and a CP2102 USB-to-serial interface.

• Use the boards for environmental sensors, robot controls, web dashboards, MQTT devices, ESPHome nodes, data loggers, smart switches, LED systems, alarms and classroom IoT projects.
• The package contains three USB-C ESP32 development boards only. USB cables, breadboards, jumper wires, sensors, batteries, power supplies and tutorials are not included.

Features:

• Integrated 2.4GHz 802.11 b/g/n Wi-Fi supports station, access-point and combined AP+STA modes, while Bluetooth 4.2 provides BR/EDR and Bluetooth Low Energy connectivity.
• Bluetooth Connection Distance: 10 m
• The ESP-32 is dual-core 32-bit processor, which means it has 2 processors. Xtensa LX6 processor runs at up to 240 MHz.
• Memory: 520 KB on-chip SRAM and 4 MB SPI flash
• This is the classic ESP-WROOM-32 platform. It runs 32-bit programs.
• This particular board has 30 pins.
• Available peripherals include UART, SPI, I2C, PWM, ADC, DAC and capacitive touch for sensors, displays, storage and motor-driver modules. GPIO signals use 3.3 V logic; do not apply 5 V directly to an ESP32 GPIO. Check the board pinout before using input-only pins or boot-strapping pins. ADC2 readings may be unavailable while Wi-Fi is active.
• Sensor: On-chip Hall sensor
• USB-to-UART Bridge: The onboard CP2102 provides USB-to-UART communication for programming and serial debugging
• ELEGOO ESP-32 development board is well-suited for applications in the Internet of Things (IoT), smart home, and wearable device domains, thanks to its powerful processing capabilities, comprehensive wireless connectivity, power-efficient design, and versatile peripheral interfaces. Additionally, the open-source software support provided offers great convenience for developers.

Notice:

• Due to the limited space, generally, to build your ESP-32 projects comfortably and avoid crowded connections, we recommend using two breadboards. This setup gives you plenty of space for neat wiring and reliable circuits.
• Connect a data-capable USB-C cable, install the Silicon Labs CP210x driver if the computer does not create a serial port, select an ESP32 Dev Module profile and choose the correct COM port. If uploading does not begin, disconnect external wiring from boot-related pins and press or hold BOOT while the IDE starts flashing.
• Disconnect power before rewiring, share ground with external circuits and use suitable drivers and separate power supplies for motors, relays, heaters and other high-current loads.

Stable Wi-Fi & WLED Setup:

Stronger Wi-Fi Connection

• Keep the PCB antenna clear of metal objects and reduce distance, walls and 2.4 GHz interference between the ESP32 and router. RSSI around -50 to -60 dBm generally indicates a strong signal; around -80 dBm indicates a weak connection

Stable Power for WLED

• Use a stable power source with sufficient current capacity. Power LED strips and other high-current loads separately instead of drawing their operating current through the ESP32 development board

Check GPIO Before Adding Touch Controls

• When using TTP223 touch sensors or buttons with WLED, select an available GPIO and avoid boot-strapping pins or pins already assigned to LEDs and other functions

Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.7 out of 5 stars 556 4.6 out of 5 stars 141 4.8 out of 5 stars 114 4.7 out of 5 stars 4,834 — Price $35.99$35.99 $28.99$28.99 $60.50$60.50 $43.69$43.69 — no data Main MCU ESP32 / ESP-WROOM-32 ATmega328P ATmega328P ATmega328P ATmega2560 Clock Speed Up to 240 MHz 16 MHz 16 MHz 16 MHz 16 MHz Logic Voltage 3.3 V GPIO 5 V 5 V 5 V 5 V I/O Overview Multiple GPIO, ADC & PWM* 14 Digital / 8 Analog 14 Digital / 6 Analog 14 Digital / 6 Analog 54 Digital / 16 Analog Memory 520 KB SRAM / Flash TBD** 32 KB Flash / 2 KB SRAM 32 KB Flash / 2 KB SRAM 32 KB Flash / 2 KB SRAM 256 KB Flash / 8 KB SRAM Wireless Wi-Fi + Bluetooth 4.2 None None None None USB Interface USB-C / CP2102 USB-C / CH340 USB-B / CH340C USB-B / ATmega16U2 USB-B / ATmega16U2 Best For IoT, wireless sensing, smart home, remote monitoring and automation projects using Wi-Fi and Bluetooth Compact breadboard builds, sensor nodes, small robots and embedded projects where space and USB-C matter Breadboard experiments, sensors, motor control, classroom projects and general electronics prototyping Electronics learning, shield-based builds, sensors, robotics, automation and repeatable lab prototypes Large I/O projects, multi-sensor systems, robotics, CNC, automation and builds needing more serial ports

* ESP32 GPIO functions vary by pin; refer to the board pinout for available and special-function pins

** Confirm the current production module flash capacity before publishing

• Powerful Processing Capabilities: ELEGOO ESP-WROOM-32 development board integrates a dual-core 32-bit processor running at up to 240 MHz, providing impressive processing power.
• Power-Efficient: The chip features a low-power design that allows for dynamic power adjustment by scaling the clock frequency across different operating modes. This makes the development board suitable for battery-powered Internet of Things (IoT) devices.
• Wireless Connectivity: The ESP-32S development board integrates both Wi-Fi and Bluetooth capabilities, supporting 2.4 GHz Wi-Fi and Bluetooth, enabling a wide range of wireless communication and connectivity options.
• Versatile Peripheral Interfaces: The development board offers a rich set of peripheral interfaces, including GPIO, UART, SPI, I2C, and more, allowing for easy connectivity to a wide range of sensors.
• Supports Over-the-Air Firmware Upgrades: The ESP-WROOM-32 chip features Over-the-Air firmware upgrade capabilities, enabling developers to continue updating and optimizing the firmware even after the product has been released.