DFRobot
Environment Science Expansion Board V2.0 for micro:bit
The Environment Science Expansion Board V2.0 is a micro:bit add-on designed for STEAM education, integrating 14 environmental sensors and modules onto a sing...
The Environment Science Expansion Board V2.0 is a micro:bit add-on designed for STEAM education, integrating 14 environmental sensors and modules onto a single tree-shaped board. Students can measure UV levels, temperature, humidity, air pressure, air quality, water quality, soil moisture, sound, and light — covering the key aspects of nature and environmental science.
Version 2.0 adds a Wi-Fi IoT card for connecting to platforms like IFTTT, ThingSpeak, and EasyIoT, plus TVOC/CO₂ air quality sensing, 4× WS2812 RGB LEDs, a motor driver, and an improved OLED display. Program with MakeCode or Mind+ and power via Micro USB or 3× AAA batteries.
Integrated Sensors & Modules
- UV Sensor (ML8511) – UV-A/UV-B detection, 280–390 nm
- Environment Sensor (BME280) – Temperature (−40 to +85 °C, ±0.5 °C), humidity (0–100% RH, ±2% RH), atmospheric pressure (300–1100 hPa)
- Air Quality Sensor (CCS811) – CO₂ (400–8000 ppm), TVOC (0–1100 ppb)
- Waterproof Temperature Probe – −10 to +85 °C display range (±0.5 °C)
- TDS Water Quality Sensor – Total dissolved solids measurement (max 55 °C water)
- Capacitive Soil Moisture Sensor – 3.3–5.5 V, PH2.0 connector
- Light Sensor – Analogue output (0–1023)
- Sound Sensor – Analogue output (0–1023)
- OLED Display – 0.96", 128 × 64 pixels, blue, 60 fps
- 4× RGB LEDs (WS2812) – Individually addressable
- Passive Buzzer – 9 mm
- Motor Driver – PWM, compatible with N20 and 130 gear motors
- Wi-Fi IoT Card – 802.11 b/g/n, supports IFTTT, ThingSpeak, EasyIoT, SIoT
Specifications
- Power – Micro USB (5 V) or 3× AAA batteries (4.5 V)
- Digital Output Voltage – 3.3 V
- GPIO – I²C ×2, P0, P1, P2, P8, P12, P13, P14, P15, P16
- Programming – MakeCode, Mind+
- Dimensions – 196 × 110.6 mm
Ideal For
- Classroom environmental science experiments
- STEAM education and weather stations
- IoT and data logging projects
- Water quality and soil moisture monitoring
Package Contents
- 1× Environment Science Expansion Board V2.0
- 1× Capacitive soil humidity sensor
- 1× TDS water quality sensor probe
- 1× Waterproof temperature sensor
Jargon buster
Plain-language definitions for the technical terms used above.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- motor driver
- An electronic circuit that lets a low-power controller switch and control a motor that needs more current than the controller pins can safely provide. Checking motor driver support matters because pumps and motors usually cannot be connected directly to a microcontroller output.
- OLED
- OLED stands for organic light-emitting diode, a display type where each pixel produces its own light. It matters because OLED screens are thin, high-contrast and easy to read for small status displays, but they can be more sensitive to image burn-in than some other display types.
- ppm
- ppm means parts per million, a common way to express very small gas concentrations in air. For CO₂ sensors, the ppm range tells you what levels the sensor can measure, such as normal indoor air through to poorly ventilated spaces.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- RGB
- Short for red, green and blue, usually referring to an LED that can mix those three colours. It matters because controlling an RGB LED teaches how separate outputs combine to create different colours.
- SIoT
- SIoT is a local Internet of Things server system used to collect and share data between connected devices, often using MQTT messaging. It matters when choosing a learning kit because it lets a classroom or project network store and exchange device data without relying entirely on cloud services.
- Torque
- A twisting force that causes something to rotate, usually measured in newton-metres or kilogram-centimetres. It matters when choosing motors, servos, gears, and tools because higher torque is needed to lift heavier loads, turn larger wheels, or move mechanisms without stalling.
Find this product in
Environment Science Expansion Board MakeCode Tutorial
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Supplier page — dfrobot.com
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Related Tutorials
Free guides on learn.littlebird.com.au
