SparkFun ESP32 Qwiic Pro Mini WiFi/BT Module Products

Description

The SparkFun DEV-23386 ESP32 Qwiic Pro Mini has an embedded ESP32-PICO-MINI-N8R2 module from Espressif with both 2.4GHz WiFi (802.11IEEE 802.11 is a set of protocol standards that define communication for a Wireless Local Area Network (WLAN). In order for WiFi to work between different devices, they all need to agree on how they are going to communicate. The current version of the standard is IEEE 802.11-2007, with many amendments such as 802.11a, 802.11b, 802.11g, and 802.11n.b/g/n) and Bluetooth (V4.2 BRBasic Rate/EDREnhanced Data Rate and BLEBluetooth Low Energy). The ESP32-PICO-MINI-N8R2 module contains an Xtensa Dual-Core 32-bit 240MHz LX6 microprocessor, 8MB Flash, 2MB PSRAMPseudo Static Random Access Memory (PSRAM) is dynamic RAM with built-in refresh and address-control circuitry to make it behave similarly to Static RAM (SRAM)., and a built-in PCBPrinted Circuit Board antenna. The two CPU cores can be individually controlled and the CPU clock frequency is adjustable from 80MHz to 240MHz. 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.

The board has pin through holes for connecting peripherals such as an external SDSecure Digital removable miniaturized flash memory cards card interface, capacitive touch sensors, ADCAnalog-to-Digital Converter (ADC, A/D, or A-to-D), DACDigital-to-Analog Converter (DAC, D/A, or D-to-A), UARTUniversal Asynchronous Receiver-Transmitter, I2CInter-Integrated Circuit. Also referred to as IIC or I²C., SPISerial Peripheral Interface, I2SInter-IC Sound, TWAITwo-Wire Automotive Interface/CANController Area Network (CAN) is a high-integrity serial communication bus designed for harsh environments such as industrial and automotive applications., and Ethernet MACMedium Access Control, Medium Access Controller, Media Access Control, or Medium Access Controller. The board includes a QwiicQwiic connectors are SparkFun's name for 4-pin JST SH connectors with 1.0mm pitch. These connectors were implemented on SparkFun boards to make it easy to plug-n-play various sensors and devices without soldering and wiring. Qwiic is cross-compatible with Adafruit's STEMMA QT connectors. connector for use with Qwiic sensors or modules. The Qwiic I2C data and clock lines are tied to 2.2kΩ pull-up resistors. There are two buttons on the board: Reset and Boot. The reset (RST) button allows users to reset the program running on the module without unplugging the board. The boot button allows the user to manually put the board into Bootloader Mode. Two onboard LEDLight Emitting Diodes, Power (Red) and STAT (Blue), show the user that power has been appropriately supplied to the board and the status of the data transfer.

An onboard AP2112K Voltage Regulator ensures that the appropriate voltage is provided to the various components of the board. The AP2112K has a max input voltage of 6V. The sleep current of the ESP32 chip is less than 5μA, making it suitable for battery powered applications.

Specs

SparkFun ESP32 Qwiic Pro Mini Wi-Fi/BT Module Specs
Parameter	Description
Board Info	SparkFun DEV-23386 ESP32 Qwiic Pro Mini Product Page Hookup Guide
Module	ESP32-PICO-MINI-N8R2 8MB Flash 2MB PSRAMPseudo Static Random Access Memory (PSRAM) is dynamic RAM with built-in refresh and address-control circuitry to make it behave similarly to Static RAM (SRAM). Built-in PCB antenna
Processor	Xtensa dual-core 32-bit 240MHz LX6 microprocessor CPU clock frequency is adjustable from 80MHz to 240MHz 48KB ROMRead-Only Memory for booting and core functions 20KB SRAMStatic Random Access Memory for data and instructions 6KB SRAM in RTCReal-Time Clock
Wi-Fi	802.11IEEE 802.11 is a set of protocol standards that define communication for a Wireless Local Area Network (WLAN). In order for WiFi to work between different devices, they all need to agree on how they are going to communicate. The current version of the standard is IEEE 802.11-2007, with many amendments such as 802.11a, 802.11b, 802.11g, and 802.11n.b/g/n Frequency: 2.4GHz (2412MHz to 2484MHz) Data rates up to 150Mbps (802.11n)
Bluetooth	BTBluetooth V4.2 BRBasic Rate/EDREnhanced Data Rate and BLEBluetooth Low Energy class-1, class-2 and class-3 transmitter AFHAdaptive Frequency Hopping used by bluetooth to overcome interference and find a clear transmission path that avoids packet collisions.
Antenna	Built-in PCBPrinted Circuit Board trace antenna
I/O Interfaces	3.3V I/O interfaces for SD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, Two-Wire Automotive Interface (TWAI, compatible with ISO11898-1), and Ethernet MAC
Operating Supply Voltage	3.3V to 5V DC with on-board 3.3V regulator
Power Consumption	Transmitting: 368mA peak (802.11b, 20MHz, 1Mbps, @19.5dBm) 258mA peak (802.11g, 20MHz, 54Mbps, @14dBm) 248mA peak (802.11n, 20MHz, MCS7, @13dBm) 250mA peak (802.11n, 40MHz, MCS7, @13dBm) Receiving: 111mA peak (802.11b/g/n, 20MHz) 117mA peak (802.11n, 40MHz) Sleep: 5μA
Operating Temperature	-40°C to +85°C
Board Size (LxWxH)	33.0mm x 17.8mm (1.3in x 0.7in)