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 Single Direction Caster Wheel for DIY Small Cart is a practical wheel from Circuitrocks for students, makers, and repair-friendly builds. It fits well in projects that need robot wheel replacements, while keeping setup straightforward for testing and prototype work.
Compared with generic parts, this product stands out through details such as wheel. 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 robot car replacements, traction upgrades, and custom drivetrains. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.
This works best when matched with the correct motors, shafts, brackets, bearings, belts, or fasteners already planned for your build.
Useful add-ons include motors, hubs, axles, chassis kits, and replacement tires. You can also compare it with Caster Wheel Steel Ball W420, DFRobot Rubber Wheel 136x24mm Kit - Pair w/ Hubs & Hardware.
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| Caster Wheel Steel Ball W420 | robot wheel replacements | Caster Wheel Steel Ball | View product |
| DFRobot Rubber Wheel 136x24mm Kit - Pair w/ Hubs & Hardware | robot wheel replacements | 136x24mm | View product |
| DFRobot D80mm Silicone Wheel for TT Motor | robot wheel replacements | DFRobot D80mm Silicone Wheel | View product |
| Product | Single Direction Caster Wheel for DIY Small Cart |
|---|---|
| Brand | Circuitrocks |
| Product Type | Wheel |
| Category | Casters |
| Primary SKU | AN802 |
| Product URL | https://circuit.rocks/products/single-direction-caster-wheel-for-diy-small-cart |
This is a passive mechanical part, so fit is the key detail. Check the shaft style, hub size, tire diameter, and mounting method before final assembly.
1 × Single Direction Caster Wheel for DIY Small Cart
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 →