Adafruit IR Break Beam Sensor 5mm LEDs - 2168 9v 2a which have an open-air range

which have an open-air range of around 50 to 100 meters

Useful spec: +/-5%

The Excavator Tank Robot Chassis is a practical robot chassis from Circuitrocks for students

carrier frequency

and environmental monitoring

Adafruit IR Break Beam Sensor 5mm LEDs - 2168 9v 2a which have an open-air rangeAdd Infrared Detection to Your Next Project The IR Break Beam Sensor 5mm LEDs is an infrared proximity sensor 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 Power Voltage: 3. 3 5. 5VDC; Output Current Capability of receiver: 100mA sink. Why youll love it Controller output: 100mA