Pololu QTR-MD-04RC Reflectance Array - 4-Channel, 8mm Pitch single digit input voltages above 4

input voltages above 4

1 × Distance Sensor 10cm GP2Y0D810Z0F Carrier Sharp

The Alora RFM1262can transmit up to +22dBm with highly efficient integrated power amplifiers

They go by the name media access units as well

Pololu QTR-MD-04RC Reflectance Array - 4-Channel, 8mm Pitch single digit input voltages above 4Detect Nearby Objects Without Contact The Reflectance Sensor Array QTR MD 04RC 4 Channel 8mm Pitch RC Output is an optical interrupter 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 Operating voltage: 2. 9 V to 5. 5 V. Why youll love it Useful spec: QTR