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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11The 2025 Hackaday Component Abuse Challenge asked makers to get useful results from components used in unexpected ways—or pushed to their limits. Its entry period closed on November 11, 2025, and Hackaday announced three winners on November 18. Their projects turned an LED into a temperature sensor, used an LED for data transmission, and made relays work as guitar pickups.
What was the 2025 Component Abuse Challenge?
Hackaday’s challenge invited makers to explore what happens when electronic components do more than their usual jobs. The announcement highlighted LEDs used as photosensors, capacitors used as microphones, and resistors used as heat sources. It also welcomed projects that operated components at or beyond their maximum ratings while still producing a working result. Elliot Williams, who wrote the announcement, summed up its spirit: “This is the contest where the number one rule is that you must break the rules, and the project has to work anyway.” Hackaday’s September 16 announcement
The four suggested categories offered different ways to approach the theme. They were prompts rather than mandatory entry classifications; entrants did not have to fit their projects into one of them.
| Category | What it invited | Example |
|---|---|---|
| Bizarro World | Reverse or repurpose a component’s ordinary function. | Use a speaker as a microphone, an LED as a light sensor, or a Peltier device to generate electricity. |
| Side Effects | Make a secondary property useful. | Use a component’s temperature-dependent behavior as the basis of a thermometer. |
| Out of Spec | Explore operation beyond nominal ratings and show what the project actually does. | The category was a challenge prompt, not a general recommendation to exceed ratings. |
| Junk Box Substitutions | Use an available part in place of the one a design appears to call for. | The announcement imagined using a one-eighth-watt resistor where an igniter coil was needed, heating it until it ignited a rocket motor. |
Who won, and what did their projects do?
Hackaday named three prize-winning projects. Each winner received a $150 DigiKey gift certificate, according to the November 18 results article.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
| Project | Maker | Component behavior repurposed | Result |
|---|---|---|---|
| LED Candles | Miroslav Hancar | An LED’s forward voltage changes with temperature. | The project measures the change as a flame heats the LED. |
| Better Than Bluetooth | Nick | An LED can act as a photosensor as well as emit light. | The project uses that sensing behavior for a low-cost, limited-range data link. |
| Relay guitar pickup | Kauz | Relay coils respond to the vibration of guitar strings. | Six small relays serve as pickups, with amplification and mixing circuitry. |
These projects show three distinct approaches to the theme: measuring a temperature-related side effect, reversing an LED’s usual role, and reusing electromechanical components in an instrument. The results article describes the LED data link as limited-range, rather than a general replacement for Bluetooth.
What other unusual component uses appeared?
Hackaday’s challenge coverage and archive also described demonstrations beyond the three prize winners:
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
- A quarter-inch audio jack used as a low-performance slip ring in a rotating toy.
- A relay’s collapsing magnetic field used to light a neon bulb.
- An LED producing a faint glow by rectifying ambient electromagnetic energy.
- An op-amp’s tendency to oscillate turned into a noisemaker.
These are individual maker demonstrations, not specifications for how such components will perform in other circuits. The challenge’s point was to make an unusual behavior useful and show the result.
When did the challenge run?
Hackaday announced the challenge on September 16, 2025, with an eight-week entry period ending November 11. The winners were published on November 18, 2025. Entries are no longer open. The dates and schedule appear in the announcement and the results.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
What the theme does—and does not—say about circuit safety
“Component abuse” describes the contest’s playful theme; it is not safety guidance. The announcement and results document unconventional uses and projects that push component limits, but they do not establish safe operating limits or endorse exceeding a component’s ratings. Treat a project demonstration as evidence of what that particular setup did, not as a general design rule.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Where to find the projects
Hackaday’s original announcement explains the categories and entry period. Its winners article describes the prize-winning entries, and the challenge archive includes additional project examples.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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