This simple light meter or photometer circuit uses an analog indicator of 0-1 mA. Power is provided by a battery and the sensor is a common LDR. This setting appears in other articles on the site. The trimpot scales.
This simple light meter or photometer circuit uses an analog indicator of 0-1 mA. Power is provided by a battery and the sensor is a common LDR. This setting appears in other articles on the site. The trimpot scales.
