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 TCRT5000 Infrared Reflectance Obstacle Avoidance Module is an infrared proximity sensor with digital output 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 The output format: digital switching output (0 and 1); Small plates PCB size: 3.2cm x 1.4cm.
| Product | Sensor style | Standout |
|---|---|---|
| TCRT5000 Infrared Reflectance Obstacle Avoidance Module | infrared proximity sensor with digital output | Current item |
| Line Tracking Sensor Module TCRT5000 | line tracking sensor | infrared sensing |
| Distance Sensor 10-80cm GP2Y0A21YK0F Sharp | infrared distance sensor with digital output | adjustable sensing range, infrared sensing |
| Line Tracking Sensor 3 Channel Module | line tracking 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 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 | TCRT5000 Infrared Reflectance Obstacle Avoidance Module |
|---|---|
| The output format | digital switching output (0 and 1) |
| Small plates PCB size | 3.2cm x 1.4cm |
| Detecting the reflected distance | 1mm ~ 25mm applicable |
| Category | proximity presence sensors |
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. Infrared and optical readings change with target color, surface finish, distance, and strong ambient light. Test with your real target before final mounting.
1 × TCRT5000 Infrared Reflectance Obstacle Avoidance 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.
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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.
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