(SPIDER Automation) Adafruit ESP32 Feather V2 Development Board | ESP32 Dual-Core 240MHz, 8MB Flash, 2MB PSRAM | Wi-Fi, Bluetooth, USB Type-C & STEMMA QT

SPIDER Automation Adafruit ESP32 Feather V2 | 8MB Flash, 2MB PSRAM & Wireless Connectivity | For IoT & Embedded Systems

Description

The Adafruit ESP32 Feather V2 is a refreshed Feather-format wireless development board designed for IoT, embedded control, sensor networking and portable electronics. It is built around the ESP32 dual-core Xtensa processor operating at 240MHz and provides 8MB Flash together with 2MB PSRAM for applications requiring additional program storage and data buffering.

The V2 design introduces several hardware improvements over the earlier ESP32 Feather platform, including a USB Type-C connector, additional user input, NeoPixel RGB LED, additional mounting holes and a STEMMA QT I2C connector. The STEMMA QT interface provides a convenient solderless connection method for compatible I2C sensors, displays and expansion boards, while its controllable power supply supports low-power system designs.

Wireless connectivity is provided through integrated 802.11b/g/n HT40 Wi-Fi and dual-mode Bluetooth supporting both Classic Bluetooth and Bluetooth Low Energy. The ESP32 platform also provides extensive peripheral capability, including UART, SPI, I2C, ADC, DAC, I2S, capacitive touch and PWM/timer functions.

For portable operation, the board supports a compatible LiPoly battery and includes battery charging when powered through USB Type-C. A dedicated battery-monitoring circuit allows the battery voltage to be monitored by the ESP32. The low-power architecture is designed for battery-operated applications, with controllable power for the NeoPixel and STEMMA QT peripherals.

The board is compatible with development environments including Arduino and MicroPython, making it suitable for rapid development of connected embedded systems, wireless controllers, sensor nodes and automation equipment.

Key Features

• ESP32 Processor: Dual-core 240MHz Xtensa processor for embedded computing and wireless applications.
• 8MB Flash: Provides expanded non-volatile storage for firmware and application data.
• 2MB PSRAM: Provides additional memory for data buffers and memory-intensive applications.
• Wi-Fi: Integrated 802.11b/g/n HT40 Wi-Fi transceiver with baseband and networking stack.
• Dual-Mode Bluetooth: Supports both Classic Bluetooth and Bluetooth Low Energy.
• USB Type-C: Replaces the previous Micro-B interface for convenient connection and power.
• USB-to-Serial: CH9102F USB-to-serial converter supports high-speed firmware uploading and serial debugging.
• STEMMA QT I2C: Provides solderless connection to compatible I2C peripherals.
• Switchable STEMMA QT Power: Allows external I2C peripherals to be powered down for low-power operation.
• LiPoly Battery Support: Provides a connection for compatible lithium-polymer batteries.
• USB Battery Charging: Charges the connected LiPoly battery when powered through USB Type-C.
• Battery Monitoring: Uses a resistor-divider circuit for monitoring LiPoly battery voltage.
• User Button: Additional tactile user input connected to GPIO38.
• Reset Button: Provides convenient hardware reset control.
• NeoPixel RGB LED: Integrated status and user-controllable RGB LED with controllable power.
• Low-Power Operation: Designed for reduced current consumption during sleep modes.
• UART Interfaces: Provides three hardware UART interfaces, with board support determining default configuration.
• SPI Interfaces: Provides three hardware SPI interfaces, with one configured by default in Feather Arduino support.
• I2C Interfaces: Provides two hardware I2C interfaces, with one configured by default in Feather Arduino support.
• ADC: Provides 12 ADC input channels.
• DAC: Provides two DAC interfaces.
• I2S Audio: Provides two I2S audio interfaces.
• Capacitive Touch: Provides 10 capacitive-touch interface channels.
• Hall Sensor: Integrated ESP32 Hall-sensor functionality.
• 32kHz Oscillator: Includes a 32kHz crystal oscillator.
• PWM/Timer: PWM and timer input/output functionality is available across GPIO pins.
• PCB Antenna: Integrated antenna for wireless connectivity.
• SDIO: Supports SDIO controller or peripheral functionality up to 50MHz.
• OpenOCD Debug: Provides an OpenOCD debug interface with 32KB TRAX buffer.
• Arduino & MicroPython: Supports popular embedded development environments.

Benefits

• Wireless System Integration: Wi-Fi and Bluetooth are integrated directly into the development platform.
• Expanded Memory: 8MB Flash and 2MB PSRAM provide greater capacity for advanced embedded applications.
• Portable Operation: LiPoly battery support and USB-C charging simplify battery-powered deployments.
• Flexible Peripheral Connectivity: UART, SPI, I2C, ADC, DAC, I2S, PWM and capacitive-touch functions support diverse hardware.
• Low-Power Design: Switchable peripheral power and sleep modes help reduce consumption in battery-powered systems.
• Rapid Prototyping: STEMMA QT provides a convenient solderless connection method for compatible peripherals.
• Modern USB Interface: USB Type-C simplifies connection to current computers, power sources and development setups.

Applications

• IoT Devices: Connected sensors, monitoring systems and networked embedded equipment.
• Wireless Automation: Wi-Fi and Bluetooth-enabled control and monitoring systems.
• Portable Electronics: Battery-powered controllers, instruments and sensor platforms.
• Environmental Monitoring: Wireless sensor nodes using I2C, analog or digital sensors.
• Industrial Prototyping: Development of connected automation and embedded control systems.
• BLE Controllers: Wireless interfaces controlled or monitored through compatible Bluetooth devices.
• Smart Devices: Connected equipment requiring Wi-Fi networking and local processing.
• Data Acquisition: Applications using ADC, I2C, SPI, UART and other ESP32 peripherals.
• Embedded Audio: Applications using the integrated I2S interfaces and DAC functionality.
• Low-Power Sensor Nodes: Battery-powered systems requiring sleep modes and controlled peripheral power.

Package Includes

• 1 × Adafruit ESP32 Feather V2 – 8MB Flash + 2MB PSRAM – STEMMA QT

Technical Specifications