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 EZO Complete-Conductivity™ is a USB-powered conductivity meter designed for accurate and reliable water quality monitoring. It measures electrical conductivity (EC), total dissolved solids (TDS), salinity, and specific gravity.
With its USB interface, the device connects directly to a computer using the free Atlas Desktop software. Users can monitor water quality, collect readings, and build custom measurement systems.
The EZO Complete-Conductivity™ also supports USB-enabled microcontrollers through serial communication. This makes it ideal for research, water testing, and automated monitoring projects.
4 Measurement Functions: Measures conductivity (EC), total dissolved solids (TDS), salinity, and specific gravity.
USB Connectivity: Connects to computers and compatible USB-enabled controllers.
High Accuracy: Provides readings with ±2% accuracy.
Wide Measurement Range: Supports conductivity readings from 0.07 to over 500,000 µS/cm.
Fast Response: Delivers one reading per second.
Temperature Compensation: Supports temperature-adjusted readings.
Flexible Probe Support: Compatible with K 0.1 to K 10 conductivity probes from different brands.
Easy Calibration: Supports 2-point or 3-point calibration.
Atlas Desktop Support: Works with free Atlas Scientific monitoring software.
Multi-Sensor Monitoring: Multiple units can be connected to monitor different locations.
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 →