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ElecFreaks IoT results here are centered on BBC micro:bit projects, usually using the IoT:bit (ESP8266 WiFi) expansion board.
Core ElecFreaks IoT (WiFi) board
- iot:bit for micro:bit ($20.85) — the key add-on that provides ESP8266 WiFi and breaks out micro:bit I/O for sensor/actuator projects.
Full ElecFreaks IoT learning kits (project bundles)
- micro:bit smart science IoT kit (with micro:bit) ($126.85) — complete bundle for science + IoT data projects.
- Micro:Bit smart Science IoT kit (without Micro:Bit) ($126.85) — same idea, but for classrooms that already have micro:bits.
- micro:bit Smart City Kit (Without micro:bit board) ($69.10) — smart-city themed builds (sensors/servos) around IoT:bit.
- micro:bit Smart Agriculture Kit (Without micro:bit board) ($75.10) — agriculture monitoring/control projects using IoT:bit + common environment sensors.
Classroom/Scenario IoT kits (guided builds)
- ELECFREAKS Classroom Smart Home Kit ($59.05) — smart-home demo builds using IOT:bit, sensors, servo, LED, and OLED.
- ELECFREAKS Classroom Smart Air Purifier Kit ($43.75) — air-quality themed build using IOT:bit + fan + dust sensing.
- ELECFREAKS Classroom Smart Pet Feeder Kit ($54.00) — feeder automation with IOT:bit, PIR motion sensing, sonar, and servo control.
- ELECFREAKS micro:bit Smart Greenhouse Kit ($64.70) — smart-agriculture/greenhouse style classroom kit based on micro:bit + IoT expansion.
- ELECFREAKS micro:bit Smart Climate Kit, designed based on micro:bit V2 and IOT:bit expansion board ($136.00) — more advanced climate monitoring focused on micro:bit V2 + IOT:bit.
Related ElecFreaks IoT add-ons
- Sensor WiFi ELECFREAKS PlanetX ($14.15) — a lower-cost way to add ESP8266-based WiFi capability for micro:bit projects.
- Octopus Analog Noise Sound Sensor Detection Module ($6.15) — a common input sensor used in smart-home style IoT builds.
Which ElecFreaks IoT option are you looking for?
Collections
Showing 21-40 of 91 products · 9 unavailable products hidden
Micro:bit Breakout Board ( Octopus:bit)
Octopus 9DOF MODULE
Octopus Tilt Sensor
Ring:bit Car Accessories (Sonar:bit,Tracking Module and LED Light bar)
OCTOPUS 1-Channel Relay
Octopus Mercury Sensor
Octopus LM35 Analog Temperature Brick
Octopus Wind Speed Sensor Anemometer Three Aluminium Cups
Octopus PM2.5 module
1 Channel Relay 3V Relay Module for Micro:bit
Smart AI Lens kit for Micro:bit
micro:bit XGO Robot Kit
ELECFREAKS Raspberry Pi Pico Starter Kit
ELECFREAKS Classroom Smart Home Kit
ELECFREAKS Grove 4Pin Adapter Cable
ELECFREAKS Smart Home Material Pack
ELECFREAKS micro:bit Retro Programming Arcade
ELECFREAKS Wukong2040 Breakout Board For Raspberry Pi Pico
ELECFREAKS micro:bit Smart Climate Kit, designed based on micro:bit V2 and IOT:bit expansion board
ELECFREAKS PlanetX Speech Recognition Sensor
MPN: EF05046
Micro:bit Breakout Board ( Octopus:bit)
The Octopus:bit is a breakout board for the BBC micro:bit that extends all GPIO ports (P0–P16, P19–P20) into colour-coded pin headers with VCC and GND alongside each I/O pin. This makes connecting sensors, servos, and other modules quick and easy — especially with the ElecFreaks Octopus series of...
Octopus 9DOF MODULE
Octopus Electronic Bricks, you can use them build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection a...
Octopus Tilt Sensor
Octopus Electronic Bricks, you can use them to build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connec...
Ring:bit Car Accessories (Sonar:bit,Tracking Module and LED Light bar)
An accessory pack for the ElecFreaks Ring:bit Car V2, adding obstacle avoidance, line-following, and colourful LED lighting to your micro:bit-powered car. The kit includes three modules that plug directly into the Ring:bit Car for expanded functionality. What's Included Sonar:bit (Ultrasonic S...
OCTOPUS 1-Channel Relay
OCTOPUS 1-Channel Relay is a single relay electronic brick: Note: Module 5V power supply: Never use power supply more than 5V, which may cause damage to the module. Features: Relay Power Supply Voltage:<V Relay drive level: With opto-isolation circuit, can completely isolate the relay controll...
Octopus Mercury Sensor
The Octopus Mercury Sensor is a tilt and angle detection module based on the mercury switch principle. When tilted, the mercury inside the switch makes or breaks contact, providing a simple way to detect orientation changes and object levelling. Part of the Octopus Electronic Bricks range from E...
Octopus LM35 Analog Temperature Brick
The Octopus LM35 Analog Temperature Brick is a plug-and-play temperature sensor module based on the TI LM35D precision centigrade temperature sensor. The LM35 outputs a voltage linearly proportional to temperature (10 mV/°C), making it easy to read with any microcontroller's analog input — no cal...
Octopus Wind Speed Sensor Anemometer Three Aluminium Cups
This three-cup anemometer measures wind speed by generating a DC voltage proportional to the rotation speed of its aluminium cups. The faster the wind blows, the higher the voltage output — up to 1.2V at maximum speed. Simply read the analogue output with a microcontroller to calculate wind speed...
Octopus PM2.5 module
The Octopus PM2.5 module from ElecFreaks is a laser-based particulate matter sensor built around the ZH03B dust sensor. It measures PM2.5 concentration in the air with high consistency and real-time response, capable of detecting particles as small as 0.3 µm in diameter. Part of the Octopus elec...
1 Channel Relay 3V Relay Module for Micro:bit
A single-channel 3 V relay module from the ElecFreaks OCTOPUS series, designed for use with the BBC micro:bit. It uses a high-quality HUIKE relay capable of switching loads up to 30 A, making it suitable for controlling home appliances and other high-current devices. The module runs on 3 V power...
Smart AI Lens kit for Micro:bit
The Smart AI Lens kit for micro:bit brings machine vision and AI capabilities to your classroom or maker project. Powered by a K210 processor, the AI Lens camera module can recognise faces, track objects and colours, identify pattern cards, and even learn to recognise custom objects with a single...
micro:bit XGO Robot Kit
Bring an AI dog robot into the micro:bit classroom with a kit designed to make robotics and artificial intelligence approachable for students.The XGO robot has 12 DOFs and supports omni-movement, letting it perform in ways that resemble a real pet dog. It is aimed at artificial intelligence educa...
ELECFREAKS Raspberry Pi Pico Starter Kit
Raspberry Pi Pico Starter Kit is an electronic starter kit that is designed for Raspberry Pico. The kit provides some basic electronic components such as LEDs, buttons, and photo-diode, it helps you enter a wonderful electronic world.Breadboard 1Push-button Switches. 2Green LEDs  ...
ELECFREAKS Classroom Smart Home Kit
The Classroom Smart Home Kit includes components such as an IOT:bit expansion board, crash sensor, 180-degree servo, rainbow LED, noise sensor, light sensor, and OLED display. These components enable a wealth of functionality and work perfectly with the micro:bit board, allowing you to explore mo...
ELECFREAKS Grove 4Pin Adapter Cable
Specially designed to connect to Grove sensors, can be used on sensor:bit, octopus:bit, or other expansion boards. Used to connect IIC devices
ELECFREAKS micro:bit Retro Programming Arcade
Micro:bit Retro Programming Arcade The Microbit Retro Programming Arcade is a colorful screen joystick expansion board designed for the Microbit V2. It features a TFT 160x128 color screen, four directional buttons, two A/B buttons, and a reset button. This device enables users to program games on...
ELECFREAKS Wukong2040 Breakout Board For Raspberry Pi Pico
DescriptionWukong 2040 is a multifunctional Breakout Board designed for Raspberry Pi Pico. In terms of functions, it is equipped with a buzzer, A\B buttons, rainbow lights, motor interface, reset button, etc., to meet the needs of creators for IO programming and peripheral expansion. In terms of ...
ELECFREAKS micro:bit Smart Climate Kit, designed based on micro:bit V2 and IOT:bit expansion board
Smart Climate Kit is an innovative product designed based on micro:bit V2 and IOT:bit expansion board. Equipped with a variety of sensors such as wind speed sensor, temperature and humidity sensor, UV sensor, dust sensor, and OLED display, it can monitor and record a variety of environmental dat...
ELECFREAKS PlanetX Speech Recognition Sensor
· MPN: EF05046
The ELECFREAKS PlanetX Speech Recognition Sensor adds voice control to your micro:bit projects. Built around the SNR9815 IC, this module recognises spoken English commands and supports self-learning custom words, letting you build voice-controlled lights, cars, robots, and more. Connects to the ...