Polverine

Polverine is a mikroBUS™-compatible board equipped with Bosch Sensortec’s BMV080 PM2.5 sensor and BME690 gas sensor, providing a complete environmental sensing solution. Powered by the Espressif ESP32-S3-MINI-1 dual-core microcontroller, it offers seamless 2.4 GHz Wi-Fi and Bluetooth® 5 connectivity, making it an ideal tool for real-time air quality monitoring in a wide range of applications. From smart homes to industrial automation, Polverine delivers accurate, actionable environmental data at a fraction of the size of comparable sensors on the market.

Compact Design with Powerful Features

At the heart of the Polverine is the BMV080 sensor, which is the world’s smallest PM2.5 sensor. With a size of just 4.4 x 3.0 x 3.0 mm³, it’s over 450 times smaller than any comparable device on the market. This miniaturization allows Polverine to be integrated into ultra-compact devices, wearables, and more. The BMV080 also boasts a fanless design, ensuring noiseless operation, reduced power consumption, and increased reliability over time. This is complemented by the BME690, a 4-in-1 environmental sensor that measures temperature, humidity, pressure, and detects volatile organic compounds (VOCs), further enhancing Polverine’s capabilities.

In addition to its compact form, Polverine features a high-performance ESP32-S3-MINI-1 microcontroller, which offers dual-core processing, Wi-Fi (802.11 b/g/n), and Bluetooth 5 (LE). This powerful MCU ensures fast processing and the ability to integrate with other smart devices or systems. The Polverine board is also developer-friendly, supporting programming with Arduino, PlatformIO, and Eclipse/VisualStudio IDEs, making it accessible for a wide range of IoT projects. Sample code demonstrations are available for free in Polverine’s GitHub repository.

Key Features & Benefits

World’s Smallest PM2.5 Sensor: BMV080

• Compact Design: Measuring just 4.4 x 3.0 x 3.0 mm³, the BMV080 is 450 times smaller than comparable devices, enabling integration into ultra-compact applications.
• Fanless & Silent: No moving parts for maintenance-free, silent operation, and energy-efficient performance.
• Accurate & Precise: Offers a 0-1000 µg/m³ measurement range with ±10% precision and 1 µg/m³ resolution for reliable air quality monitoring.

Comprehensive Environmental Monitoring: BME690

• 4-in-1 MEMS Sensor: Measures PM2.5, temperature, humidity, barometric pressure, and gas levels, offering a holistic environmental solution.
• AI-Enhanced: Equipped with AI algorithms for better data processing, customizable gas scanning, and improved accuracy.
• Ultra-Compact: At only 3.0 x 3.0 x 0.93 mm³, it’s perfect for space-constrained applications.
• Energy Efficient: 50% more power-efficient than previous models, enhancing battery life for portable devices.

Powerful MCU & Connectivity

• ESP32-S3-MINI-1 Microcontroller: Dual-core Xtensa® 32-bit LX7 processor running at 240 MHz for seamless performance.
• Wi-Fi & Bluetooth® 5: Integrated 2.4 GHz Wi-Fi and Bluetooth 5 support for flexible, reliable wireless communication.
• Low Power Consumption: Features an ultra-low-power coprocessor and customizable clock settings, extending battery life for portable devices.

Expandable & Developer-Friendly

• mikroBUS™ Form Factor: Simplifies add-on board integration for easy prototyping and system expansion.
• Full I/O Support: Includes USB, SPI, I2C, UART, PWM, GPIO, Analog In, and Qwiic Connect for flexible integration.
• Security Features: Secure Boot and Flash Encryption provide security for sensitive applications.

Real-World Applications

Polverine is ideal for a variety of applications, such as:

• Indoor air quality monitoring in homes, offices, and public spaces
• Smart homes and buildings, improving ventilation and air quality
• HVAC systems for enhanced environmental control
• Industrial monitoring, including gas leak detection and pollution monitoring
• Wearables for personal air quality tracking
• Health and wellness monitoring (e.g., VOC detection)
• Anomaly detection in emergency scenarios, like gas leaks or fire hazards

Key Features & Specifications

• MCU Core:

  • Espressif ESP32-S3-Mini-1 dual-core microprocessor at 240 MHz
  • 8 MB flash and 0.5 MB PSRAM
  • Wireless: 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE)

• Environmental Sensors:

  • BMV080: PM2.5 particulate matter detection
  • BME690: Temperature, Humidity, Pressure, and Gas (VOCs)

• I/O:

  • USB, SPI, I2C, UART, GPIO/PWM, Analog IN
  • Qwiic Connect system
  • JTAG for debugging

• User Interfaces:

  • RGB LED
  • User/Bootloader button
  • Reset button

• Size: 25.4 mm x 28.6 mm (mikroBUS™ S size)

Powerful Performance in a Compact Form

Despite its small size, the Polverine board packs powerful features for a wide range of applications. The board’s processing power ensures quick data handling, while the 2.4 GHz Wi-Fi and Bluetooth® 5 connectivity enable easy integration into IoT systems and smart devices. Whether you’re monitoring indoor air quality, optimizing HVAC systems, or developing wearables, Polverine offers a high-performance, reliable solution.

Comparisons

Support & Documentation

• Datasheets: Polverine Datasheet
• Getting Started: User Guide & Tutorials
• Source Code: GitHub

For more details on the Polverine project and full documentation, visit the Polverine page.