ESP32-WROOM-32E and ESP32-WROOM-32UE are two powerful, generic Wi-Fi + Bluetooth + Bluetooth LE MCU modules that target a wide variety of applications, ranging from low-power sensor networks to the most demanding tasks, such as voice encoding, music streaming and MP3 decoding. ESP32-WROOM-32E comes with a PCB antenna, and ESP32-WROOM-32UE with a connector for an external antenna.
At the core of the module is the ESP32-D0WD-V3 chip*. The chip embedded is designed to be scalable and adaptive. There are two CPU cores that can be individually controlled, and the CPU clock frequency is adjustable from 80 MHz to 240 MHz. The chip also has a low-power coprocessor that can be used instead of the CPU to save power while performing tasks that do not require much computing power, such as monitoring of peripherals. ESP32 integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I2S and I2C.
The integration of Bluetooth, Bluetooth LE and Wi-Fi ensures that a wide range of applications can be targeted, and that the module is all-around: using Wi-Fi allows a large physical range and direct connection to the Internet through a Wi-Fi router, while using Bluetooth allows the user to conveniently connect to the phone or broadcast low energy beacons for its detection. The sleep current of the ESP32 chip is less than 5 μA, making it suitable for battery powered and wearable electronics applications. The module supports a data rate of up to 150 Mbps, and 20 dBm output power at the antenna to ensure the widest physical range. As such the module does offer industry-leading specifications and the best performance for electronic integration, range, power consumption, and connectivity.
The operating system chosen for ESP32 is freeRTOS with LwIP; TLS 1.2 with hardware acceleration is built in as well. Secure (encrypted) over the air (OTA) upgrade is also supported, so that users can upgrade their products even after their release, at minimum cost and effort.
Key Benefits
- 2.4 GHz Wi-Fi & Bluetooth® 4.2 (LE) module
- ESP32-D0WD-V3 embedded, Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz
- Bluetooth 4.2 BR/EDR, Bluetooth mesh
- Support IEEE 802.11 b/g/n standards
- 40 MHz crystal oscillator
- 4 MB SPI flash
- On-chip hall sensor
- On board PCB antenna (ESP32-WROOM-32E)
- Connector for external antenna (ESP32-WROOM-32UE)
- Dimension, mm: 18 × 25.5 × 3.1 (ESP32-WROOM-32E) and 18 × 19.2 × 3.2 (ESP32-WROOM-32UE)
- Operating ambient temperature –40 ~ 85 °C & –40 ~ 105 °C.
- Green certification RoHS/REACH
