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ESP32 MCU Development Board

ESP32-WROOM-32 Wi-Fi+BT+BLE MCU Module
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Certification:
  • RF certification: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
  • Wi-Fi certification: Wi-Fi Alliance
  • Bluetooth certification: BQB
  • Green certification: RoHS/REACH
Test:
  • Reliablity: HTOL/HTSL/uHAST/TCT/ESD
Wi-Fi:
  • Protocols: 802.11 b/g/n (802.11n up to 150 Mbps)
  • A-MPDU and A-MSDU aggregation and 0.4 µs guard interval
  • support
  • Frequency range: 2.4 GHz ~ 2.5 GHz
Bluetooth:
  • Protocols: Bluetooth v4.2 BR/EDR and BLE specification
  • Radio: NZIF receiver with –97 dBm sensitivity, Class-1, class-2 and class-3 transmitter, AFH
  • Audio: CVSD and SBC

Hardware:

  • Module interfaces: SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC
  • On-chip sensor: Hall sensor
  • Integrated crystal: 40 MHz crystal
  • Integrated SPI flash: 4 MB
  • Operating voltage/Power supply: 2.7 V ~ 3.6 V
  • Operating current Average: 80 mA
  • Minimum current delivered by power supply: 500 mA
  • Recommended operating temperature range: -40°C ~ +85°C
  • Package size: (18.00±0.10) mm × (25.50±0.10) mm × (3.10±0.10) mm
ESP32-WROOM-32 is a powerful, generic Wi-Fi+BT+BLE MCU module that targets 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.
At the core of this module is the ESP32-D0WDQ6 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 user may also power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals for changes or crossing of thresholds. 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.
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