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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 1-20 of 60 products
ELECFREAKS PlanetX Rainbow LED Strip (10 Pixels)
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The Elecfreaks PlanetX Rainbow LED Strip features 10 individually addressable WS2812 RGB LEDs on a flexible strip. Part of the PlanetX sensor ecosystem, it connects via an RJ11 (4P4C) plug for simple, tool-free wiring to compatible breakout boards and the micro:bit. Program custom colour pattern...
ELECFREAKS micro:bit Nezha Pro AI Mechanical Power Kit
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The ELECFREAKS micro:bit Nezha Pro AI Mechanical Power Kit is designed specifically for teenagers aged 7-14. With the Nezha Pro Expansion Board as its core, it is equipped with multiple sensors, such as a voice recognition module and a gesture recognition sensor, along with over 500 building bloc...
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...
Octopus Non-invasive AC current sensor TA12-100 Brick
The Octopus TA12-100 is a non-invasive AC current sensor brick from ElecFreaks. It uses a current transformer to measure AC current flowing through a wire without needing to cut or splice the circuit — simply clamp it around the conductor. The sensor outputs an analogue voltage proportional to th...
ELECFREAKS Classroom Smart Air Purifier Kit
The ELECFREAKS Classroom Smart Air Purifier Kit includes components such as the IOT: bit expansion board, motor fan, and dust sensor. These components can achieve rich functions and perfectly match with the micro: bit development board, allowing you to explore more interesting smart homemaker ...
ELECFREAKS micro:bit Nezha Pro Ocean Kit
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The ELECFREAKS micro:bit Nezha Pro Ocean Kit is an ocean-themed STEM education kit that guides students through Ian's ocean adventure storyline with a project-based learning approach. Using electronic components and building blocks, students explore marine ecology, understand concepts like tidal ...
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...
ELECFREAKS micro:bit Petal Smart Home Explorer Kit
Description The ELECFREAKS micro:bit Petal Smart Home Explorer Kit is a hands-on learning suite designed for teenagers aged 8-16. Using sensors, servobs, and assemblable structural components enables the construction of life-oriented devvices like smart lighting, automatic cloth...
Sensor WiFi ELECFREAKS PlanetX
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The Elecfreaks PlanetX WiFi Sensor adds wireless connectivity to your micro:bit projects via the ESP8266 module. Upload sensor data to IoT platforms, monitor readings remotely, and send commands back to your micro:bit — all over Wi-Fi. Connects to the Elecfreaks Nezha expansion board via the RJ1...
ELECFREAKS Knight Truck
The ELECFREAKS Knight Truck is a buildable robotics kit that can be assembled into multiple different robot configurations. The modular construction system is compatible with LEGO bricks, allowing you to combine standard building pieces with electronic components for custom designs. The kit supp...
ELECFREAKS Mechanical Catch (Use With Cutebot)
ELECFREAKS Mechanical Catch (Use With Cutebot) is a gripper that uses an SG92R servo as a power source. The servo uses a PWM signal to drive the gripper gear to rotate and control the gripper for clamping and releasing operations. The structure adopts a design compatible with Lego 8mm round holes...
micro:bit smart coding kit（without micro:bit)
The Elecfreaks Smart Coding Kit lets you build a programmable DIY smartwatch powered by the BBC micro:bit. Using the included Power:bit extension board and nylon watch strap, you can assemble a wearable device that runs your own code — created in MakeCode or Scratch. The Power:bit board runs on ...
ELECFREAKS PlanetX LED - Green
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A green LED module from the ELECFREAKS PlanetX sensor range, designed for use with micro:bit and the Nezha expansion board. The RJ11 connector makes it simple to plug in — no soldering or breadboard required. Control brightness via analogue input, create flashing patterns, or combine with other ...
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...
Octopus Passive buzzer Brick OBPB01
The Octopus Passive Buzzer Brick is a plug-and-play buzzer module from the Elecfreaks Octopus series. Unlike an active buzzer, the passive design lets you control both tone and volume via PWM, making it ideal for generating melodies, alarms, and sound effects. Part of the Octopus Electronic Bric...
360 Digital Servo (EF90D) with wheel and tire
The ElecFreaks EF90D is a compact 360-degree continuous rotation digital servo designed for use with the BBC micro:bit. It operates at 3V, making it well-suited for micro:bit-powered robotics and motorised projects. The included wheel and tyre let you get moving straight away. Key Features 360...
1 Channel 5V Relay Module Arduino Compatible BK008
A single-channel 5 V relay module that allows a microcontroller to switch high-voltage electrical devices up to 250 VAC or 110 VDC. Controlled via a standard TTL-level digital IO pin, it works with Arduino and other popular microcontrollers. The module uses an SRD relay with optocoupler isolatio...
4 Channel 12V Relay Module BK_RL4_01
This 4-channel relay module allows you to control up to four independent circuits using a microcontroller such as Arduino, Raspberry Pi, or other MCU boards. Each relay channel has an LED indicator that shows the current output state, making it easy to monitor which relays are active. The modula...
8x16 matrix module
The 8×16 LED Matrix Module is an I2C-controlled dot matrix display designed for the BBC micro:bit. It can display numbers, letters, symbols, and scrolling text, making it ideal for adding visual output to micro:bit projects. The module connects via the I2C bus for simple two-wire communication a...
2 Channel 12V Relay Module
The 2-Channel 12V Relay Module allows you to control two high-power devices independently using low-voltage signals from a microcontroller such as Arduino. Each channel features an optocoupler-isolated relay with normally open (NO) and normally closed (NC) terminals for flexible switching configu...
