Polverine

Overview

Open-source environmental sensing board built around the ESP32-S3-MINI-1 module with dual-core Xtensa LX7 processor running at 240 MHz. Integrates Bosch BMV080 PM2.5 sensor (fanless, range 0–1000 μg/m³, resolution 1 μg/m³, precision ±10%) and BME690 environmental sensor (temperature, humidity, pressure, VOCs with AI).

Hardware and software are fully open source on GitHub. Follow development on Hackaday.io and Hackster.io.

Sensors

• Bosch BMV080 — World’s smallest PM sensor (4.4 x 3.0 x 3.0 mm, 450× smaller than comparable devices). PM1, PM2.5, PM10 measurement, fanless design, range 0–1000 μg/m³, min. particle size 0.5 μm
• Bosch BME690 — World’s smallest 4-in-1 air quality sensor (3.0 x 3.0 x 0.93 mm). Temperature, humidity, pressure, VOCs, volatile sulfur compounds, CO, hydrogen. AI-enhanced gas sensing, 50% more power efficient than predecessor

Interfaces & Security

• Interfaces — USB, SPI, I²C, UART, GPIO/PWM/INT, Analog inputs, Qwiic Connect, JTAG
• Security — AES, SHA, RSA, ECC, RNG, Secure Boot, Flash Encryption, Digital Signature, HMAC
• User Interface — RGB LED, user/bootloader button, reset button

Development

Develop firmware using Arduino IDE, PlatformIO, Eclipse/VisualStudio, or Espressif IDF. Open-source hardware and software enable full customization and community contributions.

Package includes board and two 2.54 mm pitch header strips.