SparkFun Thing Plus – ESP32 WROOM (U.FL)

The SparkFun ESP32 Thing Plus with U.FL is the next step to get started with Espressif IoT ideations while still enjoying all the amenities of the original ESP32 Thing. Espressif’s ESP32 WROOM is a powerful WiFi and Bluetooth MCU module that targets a wide variety of applications. At the core of this module is the ESP32-D0WDQ6 chip which is designed to be both scalable and adaptive. To make the Thing Plus even easier to use, we’ve moved a few pins around to make the board Feather compatible and it utilizes our handy Qwiic Connect System which means no soldering or shields are required to connect it to the rest of your system!

Why the name? We lovingly call it the “Thing” because it’s the perfect foundation for your Internet of Things project. The Thing does everything from turning on an LED to posting data with your chosen platform and can be programmed just like any microcontroller. You can even program the Thing through the Arduino IDE by installing the updated ESP32 Arduino Core.

The ESP32 Thing plus integrates a rich set of peripherals, ranging from capacitive touch sensors, Hall sensors, SD card interface, Ethernet, high-speed SPI, UART, I²S and I²C. Thanks to the onboard ESP32 WROOM module, the SparkFun Thing Plus features 16MB of flash memory, 520kB of internal SRAM, an integrated 802.11 BGN WiFi transceiver and dual-mode Bluetooth capabilities, a JST connector to plug in a LiPo battery, and a U.FL connector for your own antenna.

Get Started With the SparkFun ESP32 Thing Plus Hookup Guide

Features

SparkFun Thing Plus – ESP32 WROOM (U.FL) Features

• ESP32 WROOM (U.FL) Module
  • 21 Multifunctional GPIO
    • Up to thirteen 12-bit ADC Channels
    • Up to two DAC channels
    • Up to sixteen PWM outputs
    • Up to eight capacitive touch pins
    • Up to three SPI Busses (only one is configured by default in the Arduino IDE)
    • An available I2S Audio Output
    • Up to two I2C Busses (only one is configured by default in the Arduino IDE)
    • Up to two UARTs (only two are configured by default in the Arduino IDE, one UART is used for bootloading/debug)
• Thing Plus (or Feather) Form-Factor:
  • Dimensions: 2.55′ x 0.9′
  • Four Mounting Holes:
    • 4-40 screw compatible
  • 28 PTH Pins
  • micro-B USB Connector
  • 2-pin JST Connector for a LiPo Battery (not included)
  • 4-pin JST Qwiic Connector
• LEDs:
  • CHG – Yellow battery charging indicator
  • 13 – Blue status/test LED
• Buttons:
  • 0
  • Reset
• U.FL Connector

ESP32 WROOM (U.FL) General Features:

• Operating Voltage: 2.3 to 3.6 V
  • 2.5 µA deep sleep current
  • 80 mA average operating current
• Operating Temperature: -40 to 85 °C
• Xtensa® Single-Core 32-bit LX6 Microprocessor (up to 240MHz)
  • 448KB of ROM and 520KB SRAM
  • 16MB of Embedded SPI flash storage
• Integrated 802.11b/g/n WiFi 2.4GHz transceiver
• Integrated dual-mode Bluetooth (classic and BLE)
• Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)

Resources

• Schematic
• Eagle Files
• Hookup Guide
• Board Dimensions
• Datasheet (ESP32-WROOM)
• GitHub Hardware Repo