- Voltmeter with LED bar display
- Selectable dot or bar mode
- Adjustable full scale setting
- Easy connection via terminal blocks
This digital voltmeter is based on the LM3914 Dot/Bar Display driver IC. It can work in dot mode, where only one LED is lit at any one time, or in bar mode.
The full scale reading can be adjusted from 0.9 to 5 volts via the onboard preset.
The circuit supply can range from 4.5 to 15 volts DC and shares a common ground with the voltage being measured.
Connection is via block connectors, for the supply voltage and measured input signal.
This module can be used alone or as part of a bigger project using the BLOX design system.