ESP32 WROOM-32 Development Board WiFi Bluetooth

Name: ESP32 WROOM-32 Development Board WiFi Bluetooth
Brand: ESP32
Availability: InStock

9.1

Exceptional/10

4.5(5,231 reviews)

$12.99

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“The ESP32 is the Swiss Army knife of IoT development. Unmatched connectivity and processing power at this price point make it the default choice for WiFi-enabled projects.”

ProcessorXtensa LX6 Dual-Core 240MHz

Flash4MB

RAM520KB SRAM

WiFi802.11 b/g/n

Our Review

The ESP32 WROOM-32 is arguably the most important development board in the IoT ecosystem right now. Combining a powerful dual-core processor with WiFi and Bluetooth connectivity at around $13 CAD, it's an absolute steal.

The dual-core 240MHz Xtensa processor handles complex tasks with ease — you can run WiFi communication on one core while processing sensor data on the other. The 520KB of SRAM is generous for embedded applications, and 4MB of flash provides plenty of room for code and SPIFFS/LittleFS file storage.

Arduino IDE support is mature and well-documented, but the ESP-IDF framework unlocks the board's full potential with FreeRTOS, advanced WiFi features, and lower-level hardware access. MicroPython and CircuitPython support is also excellent for rapid prototyping.

The 34 GPIO pins offer incredible flexibility with I2C, SPI, UART, ADC (12-bit, 18 channels), DAC, PWM, and capacitive touch sensing. The built-in Hall sensor is a nice bonus for detecting magnetic fields.

Power consumption in deep sleep mode drops to just 10 microamps, making it viable for battery-powered IoT deployments with solar charging.

What We Like

Dual-core processor with WiFi and Bluetooth at $13
Massive community and library ecosystem
Ultra-low power deep sleep mode for battery projects

Watch Out For

3.3V logic only — needs level shifting for 5V sensors
ADC is non-linear and noisy without calibration
USB-to-serial chip varies between clones

Specifications

Processor	Xtensa LX6 Dual-Core 240MHz
Flash	4MB
RAM	520KB SRAM
WiFi	802.11 b/g/n
Bluetooth	4.2 BR/EDR + BLE
GPIO	34 pins
ADC	18 channels (12-bit)
Operating Voltage	3.3V

9.1/10

Exceptional

The Verdict

“The ESP32 is the Swiss Army knife of IoT development. Unmatched connectivity and processing power at this price point make it the default choice for WiFi-enabled projects.”

Check Price on Amazon

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