|
This speed sensor LM393 measures the speed by light detection. Make yourself a rotating wheel with a hole that the light sensor can "see" through. Thus, the sensor will detect each turn of the wheel when the light passes through the hole. Or use the included counting wheel with 20 perforations.
Specifications:
- Operation voltage: 3.3 - 5V
- Groove width: 5mm
- Dimensions: 32 x 14mm
- Weight: 4g
|