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 →Flashing LED Christmas Tree PCB Kit from Circuitrocks is ideal for DIY electronics builds.
Great for Arduino, ESP32, Raspberry Pi, and robotics or school projects here in the Philippines.
The Flashing LED Christmas Tree PCB Kit is a hands-on DIY project where you build your very own mini Christmas tree that blinks with red, green, and yellow LEDs. Perfect for beginners, students, or hobbyists who want to practice basic soldering and have fun at the same time.
Features:
DIY soldering kit – great for learning electronics
3D tree design made from high-quality green PCB
Flashes red, green, and yellow LEDs in a festive light pattern
Ideal for classroom activities, STEM education, or as a holiday display
Supply Voltage: 4.5v-5v
Size:H*L*W(116.4mm*58.9mm*58.
Assembly required – Simply solder the components, power it up, and enjoy your glowing tree!
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 →