The figure shows how to use the LM3914 bargraph with expanded scale. The circuit has two adjustments determining the extremes of the LED excitation scale.
This circuit is the digital indicator for the previous circuit and can be used with similar...
This circuit is found in documentation from the 1990s. The load can be a relay and the sensor, an LDR of...
This circuit limits (clip) the intensity of a signal, according to the setting of P. The circuit is...