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 →Pico RP2040 128Mbit 16M/4MB Microcontroller Development Board from Circuitrocks is ideal for DIY electronics builds.
Great for Arduino, ESP32, Raspberry Pi, and robotics or school projects here in the Philippines.
The Ultimate Pico RP2040 is a small but powerful development board that’s perfect for all kinds of projects—from simple electronics experiments to advanced IoT and robotics. It features a dual-core ARM Cortex-M0+ processor running up to 133 MHz, with 26 GPIO pins for connecting sensors, motors, and other devices. It also supports SPI, I2C, UART, ADC, and PWM, giving you lots of options for control and communication.
This board comes in two Flash memory variants: 4MB and 16MB. The 4MB version is great for basic projects with smaller code and data needs, while the 16MB version gives you extra space for larger projects, such as data logging, graphics, or more complex programs. Both versions have the same speed and features—the only difference is the storage size.
Whether you're a beginner or a pro, you can choose the variant that best fits your project and budget. It’s an excellent choice for prototyping, hobby builds, or professional designs—easy to use and ready to bring your ideas to life.
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 →