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AI Overview
To create a light-sensitive alarm with a micro:bit, you’ll typically need a way to read light level (built-in on micro:bit via the LED matrix, or an external LDR/photocell) and a way to output an alarm sound (built-in speaker on micro:bit v2, or an external buzzer/speaker).
Best all-in-one kits (easiest)
- Kitronik Inventor's Kit for the BBC micro:bit ($52.05) — includes an LDR (light sensor) plus components for building sensor-triggered projects.
- Kitronik Alarm Clock Kit with ZIP Halo HD for micro:bit ($88.85) — designed around alarm-style projects and explores light and sound.
- Micro:bit Explorer's Kit ($101.95) or Micro:bit Explorer's Kit without Micro:bit v2 ($79.35) — broader kits with lots of guided tutorials for sensors + outputs.
Light sensor add-on (if you want an external photocell)
- Octopus Analog Photocell Brick OBPhotocell ($2.40) — a simple analog LDR light sensor module you can use to trigger the alarm at a chosen brightness threshold.
Sound/alarm output (if you need louder sound than the on-board speaker)
- Kitronik MI:power Board V2 for BBC micro:bit ($17.20) — adds portable power and a built-in buzzer for alarm beeps.
- Micro:bit Expansion Board Adapter ($12.15) — a breakout-style adapter with a mini buzzer, handy for simple alarm builds.
- Electronics Starter Kit for Micro:bit ($61.70) — a general-purpose kit for wiring components to your micro:bit (useful if you’re assembling the alarm from parts rather than a single kit).
Do you have a micro:bit **v2** (with built-in speaker) or an older micro:bit (v1.x)?
Do you want to use the micro:bit’s **built-in light sensing** (simpler) or an **external LDR/photocell** (more flexible placement)?
Showing 1-20 of 67 products · 33 unavailable products hidden
Elecrow Raspberry Pi Pico Advanced Kit with 32 Modules and 32 Projects Lessons
This Raspberry Pi Pico advanced kit is designed for people who already have some electronics knowledge and programming skills and are interested in the Raspberry Pi. If you want to continue to strengthen your thinking, hands-on ability， and innovation ability, the Raspberry Pi pico advanced ki...
Micro:bit Explorer's Kit
Note: This is the new version of our Micro:Bit 24 Bit kit and has been updated for the new Micro:Bit V2! The Little Bird Micro:bit Explorer's Kit includes more than 24 tutorials that teach you both how to use the micro:bit with various sensors and electronics with real-world applications. Acces...
Kitronik Alarm Clock Kit with ZIP Halo HD for micro:bit
Explore time, light, and also sound with the Kitronik Alarm Clock Kit, a fun and hands-on introduction to the ZIP Halo HD. KITRONIK ALARM CLOCK KIT: The Kitronik Alarm Clock Kit with ZIP Halo HD for microbit provides a fun introduction to features of Halo HD. This kit features a modified version ...
Glowing House Set - BARE Conductive
IntroductionBare Paint is the first non-toxic electrically conductive paint available to consumers today! This unique child-friendly material is designed for people of all ages to explore and learn about electronics with an inclusive, easy-to-use material.Bare's House Kit contains all the compone...
MindPlus Coding Kit for Arduino
MindPlus Coding Kit for Arduino is a set of tools for programming learning. As its compatibility for Mind+, a graphical coding software for starters, and Arduino IDE, this kit is well applicable to students from the lower grade to the higher grade. It comes with an Arduino Uno R3 mainboard and a ...
nOOds - Flexible LED Filament - 3V 300mm long - Warm White
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Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC these are often called 'noods'! What we've got here are flexible LED noodles, in different lengths and colors. All are not good for eatin' but they are good for cool lighting effectsThese are often see...
nOOds - Flexible LED Filament - 3V 300mm long - Lime Green
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Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC these are often called 'noods'! What we've got here are flexible LED noodles, in different lengths and colors. All are not good for eatin' but they are good for cool lighting effectsThese are often see...
nOOds - Flexible LED Filament - Warm White 1.2 meter long - 24V
Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC, these are often called 'noods'! What we've got here are flexible LED noodles in different lengths and colors. All are not good for eatin', but they are good for cool lighting effectsThe...
nOOds - Flexible LED Filament - 12V 600mm long - Warm White
Our favorite food when hacking on code or electronics is a hot bowl of noodles - and around NYC these are often called 'noods'! What we've got here are flexible LED noodles in different lengths and colors. All are not good for eatin' but they are good for cool lighting effects These are often ...
Unicorn LED Filament
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COB LED Unicorn – A Miniature Magical LightThis glowing unicorn is crafted from COB (Chip-on-Board) LEDs, the same technology found in Edison-style LED bulbs, arranged in a whimsical design to create a bright, warm, and uniform glow. Each piece consists of dozens of micro LED diodes, bonded onto ...
Prop Shield With Motion Sensors
The Prop Shield is meant for making interactive light and sound effects on small handheld props and wearable costumes. Motion Sensors - Allows motion interactive light & sound. Audio Amplifier - Clear quality audio output to a small speaker. Fast LED Driver - Drive APA102 / Dotstar LEDs fo...
BH1745 Luminance and Colour Sensor Breakout
A really sophisticated and accurate colour and luminance sensor breakout that's Raspberry Pi and Arduino compatible. As well as detecting RGB colour and light level, it has added bells and whistles like 50/60Hz light noise rejection, a wide detection range, and two illumination LEDs. T...
Micro:bit Explorer's Kit without Micro:bit v2
The Little Bird Micro:bit Explorer's Kit includes more than 24 tutorials that teach you both how to use the micro:bit with various sensors and electronics with real-world applications. Access to the tutorials are available on our website for free, forever! There is a speaker and microphone,...
nOOds - Flexible LED Filament - 24V 1.2m long - Lime Green
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Introducing nOOds - the most fun and flexible LED filament on the market! This 24V, 1.2m long noodle is the perfect addition to your lighting collection, adding a touch of vibrant lime green to any space. Inspired by our love for noodles, these flexible LED filaments are sure to bring a smile to ...
Micro:bit Education Kit
Dive into the world of coding, electronics, and robotics with our comprehensive Micro:Bit Education Kit. Perfect for educators, students, and makers alike, this kit includes everything you need to explore and create innovative projects including lots of tutorials! What's Included: 1 x...
ELECFREAKS micro:bit Jacdac Smart Exploration Kit
Description The ELECFREAKS jacdac smart exploration kit, which is based on micro:bit V2, is equipped with a variety of jacdac series sensors, including jacdac expansion boards, button sensors, light sensors, human infrared sensors, magnetic sensors, knob encoders, light ring modules, e...
DIY Light-Up Blinky Bow Tie Kit - 10 Pack, Blue Shades
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Add a bit of blinky wearable-tech flair to your next party, workshop or classroom activity. This DIY paper bow tie kit combines simple electronics with craft, letting makers connect a coin cell battery and LED to create a light-up accessory.Each pack makes 10 light-up paper bow ties, with assorte...
Ring:Bit Car v2 for micro:bit (without micro:bit)
The Ring:bit Car is a small DIY smart car driven by the BBC micro:bit and the Ring:bit. The Ring:bit extends the micro:bit's 3 GPIO ports and allow for different sensors and components to be easily attached to the micro:bit. A basic Ring:bit Car can be easily programmed to run autonomously, wi...
Light & Motor Driver for Python (V1.0)
This is a PWM driver board with four adjustment methods, namely, Python code direct control, PC host computer control, UART communication programming control, and potentiometer manual control. It is used in application scenarios such as DC motor speed control and light adjustment. This produ...
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BOSON RGB LED Camping Lantern DIY Kit
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This hands-on STEM kit lets kids build a working RGB LED camping lantern while learning the basics of electronic circuits and the primary colours of light. By connecting the LED, rotary controls and battery pack with colour-matched wires, children can see how a simple circuit brings their project...
