SparkFun Thing Plus - ESP32 WROOM (Micro-B)

This Feather-compatible ESP32 board features dual-core processing, WiFi, Bluetooth, a micro-B USB port, and a plug-and-play Qwiic connector.

AUD$ 38.95

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Supplier Link: [SparkFun MPN:15663]

Description

The SparkFun ESP32 Thing Plus (Micro-B) is the perfect foundation for your Internet of Things projects. Powered by the ESP32 WROOM module from Espressif™, this board features a highly adaptive Xtensa® Dual-Core 32-bit LX6 microprocessor operating at up to 240MHz, backed by 16MB of embedded Flash storage and 520KB of internal SRAM.

This board provides the essential wireless capabilities you need to get your connected ideas off the ground:

WiFi (802.11b/g/n): Dependable 2.4GHz transceiver for local network and cloud connectivity.
Dual-Mode Bluetooth®: Support for both Classic Bluetooth and Bluetooth Low Energy (BLE).
Hardware Encryption: Built-in acceleration for AES, SHA2, ECC, and RSA-4096 to keep your data secure.

By combining these protocols with an ultra-low 2.5 µA deep-sleep current, you can build incredibly efficient, battery-operated sensor nodes that reliably report data over extended periods of time.

The Thing Plus Advantage

This board is built using the SparkFun Thing Plus form factor, making it fully compatible with the popular Adafruit Feather footprint. It breaks out 21 multifunctional GPIO pins to standard 0.1-inch spaced headers. The ESP32 integrates an excellent set of peripherals, giving you access to capacitive touch sensors, high-speed SPI, UART, I²S audio output, and I²C.

To make using the ESP32 WROOM Thing+ as easy to use as possible, we have equipped this board with several built-in features:

Solderless Qwiic Connector: Seamlessly integrate the board into SparkFun's ecosystem of plug-and-play I²C sensors, actuators, and displays.
Integrated Power Management: Features a micro-B USB connector for primary power and programming, plus a 2-pin JST connector for a LiPo battery.
Status Indicators: Includes a yellow charge LED and a blue status/test LED for quick visual feedback.

Whether you are turning on a single LED or streaming data to your chosen IoT platform, the ESP32 WROOM Thing Plus can be programmed just like any standard microcontroller. You can even utilise the familiar Arduino IDE by installing the updated ESP32 Arduino Core, making this a foundational starting point for your next connected build.

Specifications

SparkFun Thing Plus - ESP32 WROOM Features

ESP32 WROOM 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 Buses (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"
- Two 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

ESP32 WROOM 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® Dual-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)