Enviro Urban - module with environmental sensors and Raspberry Pi Pico W

Description

The module with environmental sensors is equipped with a Raspberry Pi Pico W. It is equipped with a pressure, humidity, temperature sensor, a microphone and an air quality sensor. The set is controlled by the RP2040 microcontroller board equipped with two ARM Cortex-M0 + cores operating at 133 MHz, 264 KB RAM and 2 MB of external QSPI flash memory. In addition, the board is equipped with the Infineon CYW43439 system, extending the board with wireless connectivity.

The module is based on the BME280 sensor, which allows you to read the atmospheric pressure in the range from 300 to 1100 hPa with an accuracy of ± 1 hPa, temperature in the range from -40 to 85℃ with an accuracy of ± 1°C and humidity with an accuracy of ± 3%. On the board, the user will also find the PMSA003I air quality sensor, which uses the laser scattering technique and allows for a precise analysis of the amount of pollutants in the environment based on the concentration of PM1.0, PM2.5 and PM10 particles. The user also has a microphone to monitor the noise level.

The device is designed to work well on battery power. The Enviro board has a built-in RTC (real time clock) so you can periodically wake the microcontroller from sleep mode, read (and optionally connect to Wi-Fi), and then sleep again, giving you months of unlimited battery life. The set is dedicated to projects of air quality stations. Examples of use along with the instruction manual are available on the project website.

Features

• Raspberry Pi Pico W
• Dual Arm Cortex M0+ operating at up to 133 MHz with 264 KB of SRAM
• 2MB QSPI flash memory supporting XiP
• Powered and programmable via USB micro-B
• 2.4 GHz wireless communication
• BME280 sensor:
• Pressure measurement: from 300 to 1100 hPa
• Temperature measurement: -40 to 85 ℃
• Humidity measuring range: 0 to 100% RH
• I2C interface
• PMSA003I sensor
• Particle measurement range: 0.3 to 1.0, 1.0 to 2.5, 2.5 to 10 µm
• Particle counting efficiency: 50% at 0.3 μm 98% at> = 0.5 μm
• Effective range (PM2.5 standard): 0 to 500 µg / m³
• Maximum range (PM2.5 standard): ≥ 1000 µg / m³
• Resolution: 1 µg / m³
• Maximum particle consistency error (PM2.5 standard): ± 10% @ 100 to 500 μg / m³, ± 10 μg / m³ @ 0 ~ 100 μg / m³
• Standard particle volume 0.1 L
• Single response time 1 second
• Total response time ≤ 10 seconds
• Sleep/wake function with RTC
• Microphone
• 1 x POKE button
• Reset button
• JST-PH battery connector
• User LED
• Warning LED for real time clock
• Qwiic/Stemma QT connector