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 →Suitable for common 18650 rechargeable lithium-ion cells, this premium battery holding tool offers a dependable power source for your DIY electronics, robotics, and Arduino projects. With Circuit Rock's Battery Holder 18650 1S and wire lead, you can power your electronic projects effectively and securely.
This battery holder's attached wire makes it simple to connect straight to your project without the effort of soldering, and its precision engineering and sturdy construction guarantee a stable connection between batteries and the circuit.
If you want quality electronics and accessories, then Circuit Rock is your one-stop destination where you will get everything. They ensure every product will undergo quality inspection before dispatch, and provide fast delivery with affordable prices
A single cell may not be enough for standard Arduino UNO boards; it may require more power to operate with proper voltage regulation.
Yes, it has pre-attached red and black wire leads for easy connection to your project.
This holder is made from durable ABS plastic and corrosion-resistant with nickel-plated metal contacts.
Yes, these batteries can be used continuously for portable power applications as it is manufactured with high-quality batteries and proper circuit design.
Yes, this holder can be used for Raspberry Pi, and also this is perfect for Arduino, ESP32 or other microcontroller-based projects which require DC power.
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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 →