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 →Bluetooth-Controlled Robot Smart Car for Arduino - The multifunction Bluetooth-controlled robot car is an upgraded version of the auto-walk car, which added the part of Bluetooth control.
The Bluetooth-controlled robot car is a microcontroller learning application development system, based on Arduino AtMega-328p. It has the function of hunting, obstacle avoidance, and remote control. And also can expand external modules to increase the car's function.
The Bluetooth module for the Arduino collects the data and transmits it to the Arduino through the TX pin of the Bluetooth module at the other end (connected to the RX pin of the Arduino). The received data is compared and checked by the code that was uploaded to Arduino. The LED illuminates if the received data is 1.
Many commonplace fully automated items, such as turning on a lamp using an Arduino Relay, may be controlled by Bluetooth. This two-part tutorial on connecting an Arduino to an Android phone is now complete. You may find the first section on using a serial cable here.
Bluetooth-controlled An Android smartphone is used to operate the robot instead of buttons, gestures, or any other controls. Here, moving the robot forward, backward, left, or right only requires a press of a button on the Android phone.
The project uses Bluetooth technology because it offers us better control and greater efficiency. We also have the benefit of being able to switch out the remote at any moment, allowing us to use any Android device, including phones, tablets, and desktops. Physical objects like walls, doors, etc. have no bearing on the car's steering ability.
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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.
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