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 →In times of needing multiple supply voltages, you don't need to have multiple adapters plugged into your outlet or even multiple battery cells. What you need to have is something called a voltage regulator. These modules provide you with your required supply voltage.
This module is a step-up voltage regulator, using the MT3608 IC that can handle input voltages ranging from 2V to 24V, and output of 5V to 28V. The peak current this module can draw is 2A, as well as its output.
It has a built-in trim potentiometer to calibrate the output voltage you desired. With an efficiency of greater than 93%, this module could give you reliable power supply output.
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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 →