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 IR Infrared Receiver HS0038B is an infrared proximity sensor designed for presence sensing, short-range detection, and touchless automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Interface: UART.
| Product | Sensor style | Standout |
|---|---|---|
| IR Infrared Receiver HS0038B | infrared proximity sensor | Current item |
| Infrared Reflective Sensor Grove | infrared proximity sensor | infrared sensing |
| Line Tracking Sensor Module for Arduino TCRT5000 LM393 | line tracking sensor | infrared sensing |
| IR Speed Sensor Module Based on LM393 | infrared proximity sensor with digital output | infrared sensing |
This sensor is a good fit for touchless dispensers, object counters, door triggers, small robots, and presence alarms.
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.
Useful add-ons include USB-to-serial tools, level-safe controllers, displays, and data loggers, depending on how you plan to power, mount, and log the sensor.
| Product | IR Infrared Receiver HS0038B |
|---|---|
| Interface | UART |
| Category | optical light imaging photon sensors |
Connect power and ground, then wire TX and RX to a serial-capable controller at the correct logic level and baud rate. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.
1 × IR Infrared Receiver HS0038B
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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 →