Single and Dual LM3914 Calculators

by Eric Gibbs - May 15, 2010

The LM3914h.exe (v3.1), DualLM3914a.exe (v3.0), and LM3915a.exe (v3.0) files all require the Visual Basic 5 or 6 runtime library for operation.  (Free download from the web.)

Having the two LM3914s, it's possible to configure them in series to give a 20 LED display.

Be sure to follow the datasheet showing the actual interconnections required between the two LM3914s.

It is possible to select the basic configurations for the two LM3914s.

Note: The Visual Basic runtime files are often required for many web sourced programs.

Ensure that your designs are within the stated operating parameters of the device.