Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →The Linear Guide Slide Rail 12mm wide 400mm long is a practical electronics module from Circuitrocks for students, makers, and repair-friendly builds. It fits well in projects that need general project use, while keeping setup straightforward for testing and prototype work.
Compared with generic parts, this product stands out through details such as 12mm, 400mm. That makes it a solid choice for Arduino, ESP32, Raspberry Pi, robotics, motion-control, and workshop projects where matching the right part from the start saves time.
This product is a good fit for general maker builds, testing, prototypes, and controller-based projects. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.
It fits well in Arduino, ESP32, and Raspberry Pi projects, especially when matched with the right power source and controller.
Popular add-ons depend on your build, but matching controllers, power supplies, and compatible motion parts usually make integration easier. You can also compare it with Linear Guide Slide Rail 12mm wide 800mm long, Linear Guide Slide Rail 12mm wide 300mm long.
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| Linear Guide Slide Rail 12mm wide 800mm long | general project use | 12mm, 800mm | View product |
| Linear Guide Slide Rail 12mm wide 300mm long | general project use | 12mm, 300mm | View product |
| Linear Guide Slide Rail 12mm wide 250mm long | general project use | 12mm, 250mm | View product |
| Product | Linear Guide Slide Rail 12mm wide 400mm long |
|---|---|
| Brand | Circuitrocks |
| Product Type | Electronics Module |
| Category | Automation Control Components |
| Primary SKU | AE165 |
| Key Specs | 12mm, 400mm |
| Product URL | https://circuit.rocks/products/linear-guide-400mm-mgn12-and-mgn12h-linear-block |
Confirm voltage, interface type, and load requirements before wiring it into your project.
1 × Linear Guide Slide Rail 12mm wide 400mm long
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One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
view thread →Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →