Adafruit T-Slot Photo Interrupter with 1 Meter Cable

This T-Slot Photo Interrupter with Cable is an intricately designed sensor featuring an IR LED and an IR photo-transistor across a U-shaped gap. With the capability to detect objects blocking the IR light, it operates efficiently by turning off when obstructed and on when clear.

This sensor shines when paired with slotted encoder wheels. A practical setup might involve counting transitions across the slot, calculating RPM, and displaying data on an OLED. Its built-in red LED alerts you when the sensor is active, ensuring high precision in various projects.

Specifications include a power requirement of at least 5V for the Vin line, though the open-collector output transistor is compatible with 3.3V logic through a pullup resistor. As long as you have a 5V output, integrating it with a 3V device, such as a Feather, is seamless.

The version with an attached cable includes a brown wire for VCC (5-24V logic circuit power), a pink wire for LED configuration, a black wire for transistor output, and a blue wire for ground. The versatile design caters to diverse project needs.