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 JSumo Plastic Caster Wheel is a simple but useful support wheel option for lightweight robot builds. JSumo describes this product as a mini plastic caster wheel pair intended for light weight projects.
These caster wheels are especially useful in line follower robots and other small mobile robots where you need a free-rolling support point to stabilize a two-motor drive layout without adding much cost or weight.
Use plastic caster wheels in line follower robots, small classroom robots, lightweight drive bases, Arduino robot projects, and simple autonomous vehicles.
Pair it with small DC motors, a line sensor, a compact controller board, and a lightweight chassis.
Useful extras include wheels, motors, motor drivers, line sensors, and small robot chassis plates for a complete basic robot build.
| Product | Mini JSumo Plastic Caster Wheel Pair |
|---|---|
| Product Code | JS15326 |
| Type | Free-rolling plastic caster wheel pair |
| Best Use | Lightweight robot projects and line follower robots |
Caster wheels work best when mounted at a height that keeps the robot stable without reducing traction on the main drive wheels. Test caster placement carefully to avoid unnecessary drag or wobble.
1 × Pair of mini plastic caster wheels
| Product | Robot type | Why pair it |
|---|---|---|
| JSumo Bolt PID Controlled Line Follower Kit (Without Battery) | Line follower | JSumo notes this caster style is used on light line follower projects. |
| JSumo Storm Line Follower Kit | Line follower | Useful when you want a low-cost support wheel for small and light robot layouts. |
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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 →