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 Proximity Obstacle Avoidance Sensor Module is an infrared proximity sensor with digital output designed for obstacle detection, touchless triggers, object counting, and simple automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Detection range: ~2–30 cm (adjustable; depends on target reflectivity); Adjustable range: dial in the distance with the onboard potentiometer.; Operating voltage: 3–5 V.
| Product | Sensor style | Standout |
|---|---|---|
| IR Proximity Obstacle Avoidance Sensor Module | infrared proximity sensor with digital output | Current item |
| Distance Sensor 10-80cm GP2Y0A21YK0F Sharp | infrared distance sensor with digital output | adjustable sensing range, infrared sensing |
| Infrared Sensor Adjustable E18-D80NK | infrared proximity sensor with digital output | adjustable sensing range, infrared sensing |
| Line Tracking Sensor 5 Channel Module with Obstacle and Bump Sensor | line tracking sensor with digital output | digital output |
This sensor is a good fit for robot obstacle avoidance, touchless dispensers, automatic doors, object counters, parking aids, and level alarms.
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.
Useful add-ons include a microcontroller board, jumper wires, and pull-up or pull-down support when needed, depending on how you plan to power, mount, and log the sensor.
| Product | IR Proximity Obstacle Avoidance Sensor Module |
|---|---|
| Indicators | Power LED and signal LED |
| Onboard indicators | power and signal LEDs make tuning easy. |
| Interface | 3 pins: VCC, GND, OUT (digital) |
| Detection range | ~2–30 cm (adjustable; depends on target reflectivity) |
| Adjustable range | dial in the distance with the onboard potentiometer. |
| Operating voltage | 3–5 V |
| SKU | 2450 |
| VCC | 3.3–5 V (match your controller’s logic if you can) |
Connect power and ground, then wire the output pin to a digital GPIO input. Check whether the module uses active-high or active-low logic in your code.
1 × IR Proximity Obstacle Avoidance Sensor Module
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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.
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