Environment Science Expansion Board V2.0 for micro:bit
- Delivery nationwide via The Courier Guy — R150 flat, free over R2,000
- Free collection from our Milnerton (Cape Town) warehouse
- Secure checkout — PayFast card payment or EFT
- Questions? WhatsApp us on +27 65 900 8570
Description
The Environment Science Expansion Board V2.0 for micro:bit is a highly integrated STEAM platform designed to bring classroom science theory into practical everyday experiments. Built in an engaging tree shape, it allows students and educators to gather real-time data across atmospheric, soil, and aquatic environments. It is an ideal tool for schools, science clubs, and hobbyists exploring coding, data logging, and IoT automation.
Comprehensive on-board environmental sensing
The board integrates a suite of ambient sensors including a BME280 sensor for barometric pressure, temperature, and humidity, alongside an ML8511 UV sensor, an ambient light sensor, and an analogue sound sensor. An onboard CCS811 sensor monitors indoor air quality by measuring TVOC from 0 to 1100 ppb and CO2 concentrations from 400 to 8000 ppm.
External soil and water probes
Expand testing to earth and water using the three included external probes. The package features a capacitive soil moisture sensor, a waterproof temperature probe measuring from -55 to 125 degrees Celsius, and a dedicated TDS probe to analyse total dissolved solids in water.
Integrated WiFi and IoT support
A dedicated 2.4GHz WiFi-IoT card provides direct internet connectivity using standard TCP/IP networking. Students can upload live scientific data to leading cloud platforms such as EasyIoT, IFTTT, ThingSpeak, and SIoT, aided by an onboard RGB status indicator.
On-board display and actuators
A 0.96-inch 128x64 blue OLED display enables immediate data visualisation in the field without an external monitor. Interactive feedback is supported by four addressable WS2812 RGB LEDs, an onboard passive buzzer, and a 1-way PWM motor driver compatible with low-power 130 and N20 DC motors.
Versatile power and programming
Designed for classroom convenience, power can be supplied via a 5V micro-USB port or the onboard 3x AAA battery holder. The board breaks out dual I2C channels and multiple micro:bit GPIO pins with 3.3V logic, fully programmable using MakeCode or Mind+.
Downloads & documentation
Specifications
| Power Supply | MicroUSB (5V ) /Three 1.5V AAA Batteries (4.5V) |
| (Note | Because the power consumption of WIFI-IoT card is relatively large, it may not work properly if the AAA battery is low. Please use MicroUSB port to supply power to ensure the normal operation of the product when using it for class teaching.) |
| Digital Port Output Voltage | 3.3V |
| GPIO | I2C×2 P0 P1 P2 P8 P12 P13 P14 P15 P16 |
| Operating Temperature | -20℃~70℃ |
| Sensitive Area | UV-A, UV-B |
| Sensitivity Wavelength | 280-390nm |
| Operating Current | 2mA |
| Temperature Measuring Range | -40℃~+85℃，Resolution 0.1℃，Deviation±0.5℃ |
| Humidity Measuring Range | 0~100%RH, Resolution 0.1%RH，Deviation±2%RH |
| Response Time of Humidity Measurement | 1S |
| Atmospheric Pressure Measuring Range | 300~1100hPa |
| Temperature Display Range | -10℃~+85℃（Deviation±0.5℃） |
| Operating Temperature Range | -55℃~125℃ |
| Query Time | less than 750ms |
| Operating Humidity Range | 10%RH~95%RH |
| CO2 Measuring Range | 400ppm~8000ppm |
| TVOC Measuring Range | 0ppb~1100ppb |
| Operating Voltage | 3.3V-5.5V DC |
| Output Voltage | 0-3.0V DC |
| Connector | PH2.0-3P |
| Dimension | 98×23mm |
| RGB Light Model | WS2812 |
| Port | P15 |
| Output Date Type | analog value |
| Data Range | 0-1023 |
| Model | passive buzzer |
| Display Color | blue |
| Pixels | 128 × 64 |
| Refresh Rate | 60 fps |
| Brightness | 60 (Typ) cd/m2 |
| Full-screen Lighting Consumption | about 22.75mA |
| Display Area | 21.744×10.864 (mm) |
| Driving Mode | PWM |
| Compatible Motor | Low Power DC Motors such as N20 Gear Motor and 130 Gear Motor |
| Wireless Mode | IEEE802.11b/g/n |
| Encryption Type | WPA WPA2/WPA2–PSK |
| Frequency | 2.4GHz |
| Built-in Protocol | TCP/IP protocol stack |
| Supported IoT Platform | EasyIoT, IFTTT, ThingSpeak, SIoT |
In the box
| Environment Science Expansion Board V2.0 for micro:bit | 1 |
| Capacitive Soil Humidity Sensor | 1 |
| TDS Water Quality Sensor Probe | 1 |
| Waterproof Temperature Sensor | 1 |
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