Fc 51 Ir Sensor Datasheet Hot Jun 2026

| Sensor | Thermal Drift | Max Range | Typical Cost | | :--- | :--- | :--- | :--- | | | High (poor) | 30 cm | $2 | | FC 51 with modulation | Medium | 40 cm | $3 | | SHARP GP2Y0A21 (analog) | Low (compensated) | 80 cm | $12 | | VL53L0X (ToF laser) | Very low | 200 cm | $8 | | HC-SR04 (ultrasonic) | Negligible | 400 cm | $4 |

The LM393 lacks hysteresis. Add a 100kΩ resistor from the output to VCC to introduce positive feedback. This reduces oscillation and thermal noise false triggers. fc 51 ir sensor datasheet hot

fc 51 ir sensor datasheet hot, FC 51 thermal drift, LM393 overheating, IR sensor false trigger heat, FC 51 calibration temperature, obstacle avoidance sensor hot fix. | Sensor | Thermal Drift | Max Range