Brand: Espressif Systems · SKU: DK226A-32U · MPN: ESP32-WROOM-32U · Category: Components
The ESP32-WROOM-32U is a powerful, generic Wi-Fi + BT + BLE MCU module that targets a wide variety of applications, ranging from low-power sensor networks to demanding tasks like voice encoding, music streaming, and MP3 decoding. It is based on the ESP32-D0WDQ6 chip and is different from the ESP32-WROOM-32D as it integrates a U. FL connector for an external antenna, making it suitable for space-constrained applications. The core features dual CPU cores, adjustable clock frequency (80 MHz to 240 MHz), and a low-power coprocessor. It integrates rich peripherals like capacitive touch sensors, Hall sensors, SD card interface, Ethernet, SPI, UART, I2S, and I2C. The module supports Wi-Fi 802.11 b/g/n (up to 150 Mbps) and Bluetooth v4.2 BR/EDR and BLE specifications. Some variants are pre-flashed with WiZ firmware for smart lighting control.
| CPU | Dual-core Xtensa® 32-bit LX6, adjustable 80 MHz to 240 MHz |
|---|---|
| Core Chip | ESP32-D0WDQ6 (or ESP32-D0WD) |
| Interfaces | SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, GPIO, capacitive touch sensor, ADC, DAC, Hall sensor |
| Wi-Fi Protocols | 802.11 b/g/n (up to 150 Mbps), A-MPDU and A-MSDU aggregation |
| Integrated Flash | 4 MB (Some variants may have 8MB, 16MB, or 32MB options mentioned for the ESP32-WROOM-32 series) |
| Antenna Connector | U. FL connector (for external antenna) |
| Operating Voltage | 2.2V-3.6V (or 3.0VDC Min, 3.6VDC Max) |
| Bluetooth Protocols | Bluetooth v4.2 BR/EDR and BLE specification |
| Operating Temperature | -40°C to +85°C (or +105°C for some variants) |
| Warranty | Not specified (Typically covered by the distributor/manufacturer's standard terms) |
| Weight | 0.028219 oz (for a variant) |
| Dimensions | 18 mm x 19.2 mm x 3.2 mm (for a variant) |
The ESP32-WROOM-32U is a highly integrated module featuring a dual-core MCU with built-in Wi-Fi and Bluetooth connectivity. Its key distinguishing feature is the on-board U. FL connector for external antennas, which is advantageous for applications requiring custom antenna placement or high-reliability connections. It is designed for scalability and low-power consumption, suitable for a wide range of IoT devices.
Yes, this ESP32-WROOM-32U Module (DK226A-32U) is 100% genuine Espressif Systems hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This ESP32-WROOM-32U Module includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the DK226A-32U.