20 LEDS 0 TO 20V BAR-GRAPH VOLTAGE METER USING LM3914

[guclusat]

0 – 20V LED Voltmeter project displays the voltage of the source using 20 LED’s. This project is based on the famous LM3914 IC from National Semiconductor.

Power Supply Input: 5 VDC Max @ 30 mA in DOT mode and 300 mA in BAR mode


Specifications

• Output: 20 LED’s
• Range selectable with onboard preset
• 2 Types of display Bar and Dot selectable by a jumper
• Berg connector for connecting power & voltage in
• Four mounting holes of 3.2 mm each
• PCB dimensions 40 mm x 145 mm

Resimler ektedir.