Description :

-SparkFun ESP32 Thing Plus with UFL is a powerful IoT module based on the ESP32 WROOM chip
-Feather compatible and utilizes Qwiic Connect System for easy connection to other systems
-Can be programmed like any microcontroller and can be programmed through the Arduino IDE
-Integrates a range of peripherals such as capacitive touch sensors, Hall sensors, SD card interface, -Ethernet, high-speed SPI, UART, I2S, and I2C
-Features 16MB of flash memory, 520kB of internal SRAM, 802.11 BGN WiFi, dual-mode Bluetooth capabilities, JST connector for LiPo battery, and U.FL connector for antenna.

-Specifications:

SparkFun Thing Plus – ESP32 WROOM (U.FL) Features
1-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)
2-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
3-LEDs:
•CHG – Yellow battery charging indicator
•13 – Blue status/test LED
4-Buttons:
•0
•Reset
5-U.FL Connector
ESP32 WROOM (U.FL) General Features:
1-Operating Voltage: 2.3 to 3.6 V
•2.5 µA deep sleep current
•80 mA average operating current
2-Operating Temperature: -40 to 85 °C
3-Xtensa Single-Core 32-bit LX6 Microprocessor (up to 240MHz)
•448KB of ROM and 520KB SRAM
•16MB of Embedded SPI flash storage
4-Integrated 802.11b/g/n WiFi 2.4GHz transceiver
5-Integrated dual-mode Bluetooth (classic and BLE)
6-Hardware accelerated encryption (AES, SHA2, ECC, RSA-4096)