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 Metal Ball Casters 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 electronics module. 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 Turbo Metal Gear Worm Motor 6V 40RPM 10kg-cm, Caster Wheel Steel Ball W420.
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| Turbo Metal Gear Worm Motor 6V 40RPM 10kg-cm | general project use | 6V, 40RPM, metal gear | View product |
| Caster Wheel Steel Ball W420 | robot wheel replacements | Caster Wheel Steel Ball | View product |
| Radial Ball Bearing 608ZZ | mechanical fit and mounting | Radial Ball Bearing 608ZZ | View product |
| Product | Metal Ball Casters |
|---|---|
| Brand | Circuitrocks |
| Product Type | Electronics Module |
| Primary SKU | FIT0007 |
| Key Specs | 1mm, 15KG, 20mm |
| Product URL | https://circuit.rocks/products/metal-ball-casters |
Confirm voltage, interface type, and load requirements before wiring it into your project.
1 × Metal Ball Casters
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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 →