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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 81-100 of 100 products
Basic:bit for micro:bit three way I/O expansion, mini version
Neopixel Rainbow LED strip and GVS conector -10 LEDs
Octopus Single RGB Rainbow LED
Grove to Octopus Cable
Octopus light sensor
Octopus Alphanumeric LED Brick
Octopus Analog UV sensor (GUVA-S12SD)
Octopus ADKeypad
ring:bit V2 for micro:bit
Geekservo 9g 270 Degrees compatible with Lego
micro:bit Smart Home Kit (with micro:bit board)
Geekservo Motor compatible with Lego
Octopus PIR Sensor Brick
KittenBot Silicone Sleeve for micro:bit - Blue
micro:bit case - translucent
OV7670 Camera Module
1 Channel 5V Relay Module Arduino Compatible BK008
HC-SR04 Ultrasonic Sensor Distance Measuring Module Ultra01+
Wireless Charging Module Couple 3.3V PW-WCG-3V3
8 Channel 12V Relay Module BK_RL8_01
Basic:bit for micro:bit three way I/O expansion, mini version
Basic:bit is a basic breakout board of micro:bit. It carries a buzzer and three groups of GVS pins(P0/P1/P2) on board. Each group of GVS pins separately leads out the IO port, 3V port and GND port on micro:bit. Small size with simple structure, it is quite enough for you to complete 98% micro:bit...
Neopixel Rainbow LED strip and GVS conector -10 LEDs
This NeoPixel-compatible rainbow LED strip features 10 individually addressable WS2812B RGB LEDs with a standard 3-pin GVS connector for easy plug-and-play use. Both ends have connectors, allowing multiple strips to be daisy-chained for longer runs. Designed to work with micro:bit at 3.3V, it's ...
Octopus Single RGB Rainbow LED
Octopus Single RGB Rainbow LED is one of the single rainbow LED electronic bricks in OCTOPUS series. The basic design is upon the OCTOPUS electronic bricks series with the identical design on the outlook, PCB fixed orifices and the connectors of the electronic bricks. The on-board LED is a ...
Grove to Octopus Cable
Specially designed to connect to seeed studio sensors, seeed Sudio sensors can be used on sensor:bit, octopus:bit, Wukong or other expansion boards. Only ordinary seeed studio sensors can be connected, IIC devices can not be used.
Octopus light sensor
The Octopus Light Sensor Brick reads the ambient light level of its surrounding environment and outputs an analog signal. The 3-pin GVS connector makes it easy to plug into micro:bit expansion boards, Arduino, and other microcontrollers without soldering. Key Features Output – Analog signal pr...
Octopus Alphanumeric LED Brick
A common cathode alphanumeric LED display module driven by the HT16K33 chip over I2C. The 0.56-inch digit height makes it suitable for displaying letters, numbers, and basic symbols in electronics projects and interactive displays. Key Features HT16K33 Driver – I2C bus interface for simple mic...
Octopus Analog UV sensor (GUVA-S12SD)
Octopus Analog UV sensor (GUVA-S12SD) is the UV electric brick in our Octopus series, the basic design is from the Octopus electric bricks and the setting of its outlook, the PCB fixing hole and the connectors are the same.It can measure the total UV intensity of the sunlight; linear signal volta...
Octopus ADKeypad
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 connect...
ring:bit V2 for micro:bit
The Ring:bit expansion board is a simple PCB for the micro:bit. The Ring:bit extends the micro:bit's 3 GPIO ports. We will use this module to convert the P0/P1/P2 port to the common GVS port. It can be loaded 3 AAA batteries to drive the car or other components.FeatureCompatble with LEGO holeEach...
micro:bit Smart Home Kit (with micro:bit board)
Smart home Kit is a product about smart home project base on micro:bit which is developed by ELECFREAK. We selected executed components commonly used at home as TMP36 temperature sensor, sound sensor, crash sensor, servo, motor. You can build scene like windowsill, wardrobe and fish tank, crea...
Geekservo Motor compatible with Lego
The Geekservo Motor is a compact DC motor designed to be fully compatible with LEGO building systems. Its LEGO-compatible mounting points let you integrate motorised movement directly into brick-based builds, making it ideal for robotics, STEM education, and creative construction projects. Opera...
Octopus PIR Sensor Brick
OCTOPUS PIR Sensor module is a type of electronic building block based on AM412 pyroelectric digital smart sensor. It can be used in sensing and detection of human or animal motion, sensing distance is about 4-5 meters. Specification: Power supply 5V Digital signal processing:<SP: Power ...
KittenBot Silicone Sleeve for micro:bit - Blue
The KittenBot Silicone Sleeve is a soft protective case for the BBC micro:bit, available in blue. The flexible silicone wraps around the board to guard against bumps, drops, and scratches while keeping all buttons, the LED matrix, and edge connector accessible. Key Features Soft Silicone Const...
OV7670 Camera Module
The OV7670 is a compact VGA camera module based on the OmniVision OV7670 image sensor. It provides a single-chip VGA camera and image processor capable of up to 30fps at 640×480 resolution, with multiple output formats including RGB565, YUV, and raw RGB. Controlled via the SCCB interface (I²C co...
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...
HC-SR04 Ultrasonic Sensor Distance Measuring Module Ultra01+
The HC-SR04 is a widely used ultrasonic distance sensor that provides non-contact measurement from 2 cm to 450 cm with up to 3 mm resolution. It uses a 40 kHz ultrasonic transducer pair — one transmitter and one receiver — to calculate distance based on the time-of-flight of a sound pulse. With ...
Wireless Charging Module Couple 3.3V PW-WCG-3V3
The Wireless Charging Module can be applied in electronic equipments in common use for close wireless charging or power supply. Consisted of a transmitter and insolation coil, it could serve as a replacement for the Wireless Power Supply with stable 3.3V output voltage and maximum 600mA output...
8 Channel 12V Relay Module BK_RL8_01
An 8-channel relay module compatible with Arduino, Raspberry Pi, and other MCU boards (PIC, ARM, MSP430). Each relay channel has an LED indicator showing its output state, making it easy to monitor which relays are active. Key Features 8-Channel Relay – Independent control of 8 circuits LED I...
