Say hello to the next generation of Pro Mini boards - the SparkFun ESP32 Qwiic Pro Mini houses the powerful ESP32-PICO-MINI-N8R2 from Espressif on our compact Pro Mini footprint with 2MB of PSRAM. With two individually controllable CPU cores, adjustable CPU clock frequency, a co-processor that can be used in situations that require minimal computing power, as well as a rich set of peripherals such as capabilities for an external SD card interface, capacitive touch sensors, ADC, DAC, Two-Wire Automotive Interface, to Ethernet, high-speed SPI, UART, I²S, and I²C, this board is a powerhouse in a tiny little package. Best of all, utilizing our handy Qwiic system, no soldering is required to connect this Pro Mini to the rest of your system.

The integration of Bluetooth® (specifically Bluetooth SPP), Bluetooth LE, and WiFi ensures that a wide range of applications can be targeted and that the module is all-around: using WiFi allows an extensive physical range and direct connection to the Internet through a WiFi 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 5μA, making it suitable for battery-powered and wearable electronics applications. The module supports a data rate of up to 150Mbps and 20dBm output power at the antenna to ensure the most comprehensive physical range.

Note: Unlike other ESP32 boards, this device requires user interaction to program. To program the device, hold down GP0 while resetting it. This is a simple process, but it is not automatic.

The SparkFun Qwiic Connect System is an ecosystem of I²C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can’t hook it up wrong.

• CPU and On­Chip Memory
  • ESP32-PICO-V3-02 embedded, Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz
  • 448KB ROM for booting and core functions
  • 520KB SRAM for data and instructions
  • 16KB SRAM in RTC
  • 8MB SPI flash
  • 2MB PSRAM
• Wi­Fi
  • 802.11b/g/n
  • Bit rate: 802.11n up to 150 Mbps
  • A-MPDU and A-MSDU aggregation
  • 0.4 µs guard interval support
  • Center frequency range of operating channel: 2412 ~ 2484 MHz
• Bluetooth
  • Bluetooth V4.2 BR/EDR and Bluetooth LE specification
  • Class-1, class-2 and class-3 transmitter
  • AFH
  • CVSD and SBC
• Peripherals
  • UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0), Ethernet MAC
• Integrated Components on Module
  • 40 MHz crystal oscillator
• Antenna Options
  • ESP32-PICO-MINI-02: On-board PCB antenna
• Operating Conditions
  • Operating voltage/Power supply: 3.0 ~ 3.6 V
  • Operating ambient temperature: –40 ~ 85 °C
• 1x Vertical Qwiic Connector

• Schematic
• KiCAD Files
• Board Dimensions
• Hookup Guide
• Datasheet (ESP32-PICO-MINI-02)
• Qwiic Info Page
• GitHub Hardware Respository