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 DC Diaphragm Pumps 6-12V R385 is a practical pump from Circuitrocks for students, makers, and repair-friendly builds. It fits well in projects that need small liquid transfer, while keeping setup straightforward for testing and prototype work.
Compared with generic parts, this product stands out through details such as 12V. 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 liquid transfer, mini fountains, cooling loops, dosing, and DIY water circulation projects. It works especially well in student projects, quick repairs, and prototype builds where part availability, straightforward hookup, and predictable results matter.
Plan for a matching power supply, a proper driver stage where needed, and a controller if you want timed, remote, or sensor-based operation.
Useful add-ons include tubing, fittings, relays or MOSFET drivers, and a matching liquid source or reservoir. You can also compare it with DC Motor 550 12V, DC Motor 395 12V.
| Compared Product | Best For | Key Difference | Direct Link |
|---|---|---|---|
| DC Motor 550 12V | simple spinning motion | 12V | View product |
| DC Motor 395 12V | simple spinning motion | 12V | View product |
| DC Motor 12V 350RPM with Encoder 12kg-cm | simple spinning motion | 12V, 350RPM, encoder | View product |
| Product | DC Diaphragm Pumps 6-12V R385 |
|---|---|
| Brand | Circuitrocks |
| Product Type | Pump |
| Primary SKU | 2502 |
| Key Specs | 12V |
| Product URL | https://circuit.rocks/products/dc-diaphragm-pumps-6-12v-r385 |
Confirm the pump voltage before powering it, and switch it through a transistor, MOSFET, or relay instead of a direct controller pin.
1 × DC Diaphragm Pumps 6-12V R385
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
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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 →