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 Servo 9g Metal Gear Micro 1.8Kg is a practical servo motor from Circuitrocks for students, makers, and repair-friendly builds. It fits well in projects that need lightweight RC and small robotics, while keeping setup straightforward for testing and prototype work.
Compared with generic parts, this product stands out through details such as Metal gear build, Compact size, 9g. 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 small robot arms, pan-tilt mounts, RC steering links, animatronics, and motion parts that need angle control. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.
A simple setup includes an Arduino-compatible board, a stable 5V supply, jumper wires, and a servo tester or PWM-capable controller.
Useful add-ons include servo brackets, horns, external 5V power, and controller boards. You can also compare it with Micro Servo MG90D 180 deg High Torque Metal Gear, Micro Servo MG90D 360 deg High Torque Metal Gear.
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| Micro Servo MG90D 180 deg High Torque Metal Gear | lightweight RC and small robotics | 180 deg, metal gear, micro | View product |
| Micro Servo MG90D 360 deg High Torque Metal Gear | lightweight RC and small robotics | 360 deg, metal gear, micro | View product |
| Servo Micro SG92R FPV RC Drone 9g 2.5kg Torque | lightweight RC and small robotics | 9g, 2.5kg, micro | View product |
| Product | Servo 9g Metal Gear Micro 1.8Kg |
|---|---|
| Brand | Circuitrocks |
| Product Type | Servo Motor |
| Primary SKU | SER0039 |
| Key Specs | 9g, 1.8Kg |
| Product URL | https://circuit.rocks/products/servo-9g-metal-gear-micro-1-8kg |
Servos usually need power, ground, and one PWM signal line. For best results, use a steady external 5V supply when running more than one servo or when the load is heavy.
1 × Servo 9g Metal Gear Micro 1.8Kg
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 →