Bicolor LED Indicates Voltage Readings Via Visual Pulses (.PDF Download)

June 25, 2015

The circuit in Figure 1 uses a bicolor (red/green) LED to indicate the voltage measured with a set of three color pulses. The green, yellow, and red pulses indicate the units, decimal point, and decimals of volt, respectively. The circuit is based on the 8-pin MCU PIC 12F683. It requires only two I/O lines to display a voltage reading with a resolution of 0.1 V...

Register or Sign in below to download the full article in .PDF format, including high resolution graphics and schematics when applicable.