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 Sanwa CD800A is a compact 4000-count digital multimeter for everyday bench and repair work. Covers AC/DC voltage, AC/DC current, resistance, capacitance, frequency, duty cycle, continuity, and diode test in one pocketable meter.
Auto and manual ranging, data hold, and a buzzer for continuity. The body cover doubles as a tilt stand, so it sits upright while both hands are on the probes.
| Model | Sanwa CD800A |
| Display | 4000-count LCD |
| DC voltage | 400mV to 600V (±0.7% basic accuracy) |
| AC voltage | 4V to 600V |
| AC/DC current | 40mA / 400mA ranges |
| Resistance | 400Ω to 40MΩ |
| Capacitance | 50nF to 100µF |
| Frequency | 5Hz to 100kHz |
| Power | 2 × 1.5V R6P (AA) |
| Size / weight | 176 × 104 × 46mm, approx. 340g |
Current tops out at 400mA - fine for electronics work, reach for a bigger meter on high-current jobs. Ships with test leads and manual.
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
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 →