0-20V Bargraph Voltmeter

  • Rajkumar Sharma
  • 21.863 Views
  • moderate
  • Tested
  • SKU: EL44541
  • Quote Now

photo

0 – 20V LED Voltmeter kit displays the voltage of the source using 20 LED’s.  This projects  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

Schematic

schematic

Parts List

0-20V_BOM

Please follow and like us:
Pin Share

PCB

Subscribe
Notify of
guest

2 Comments
Inline Feedbacks
View all comments
varga gabor

Please, could you tell me what kind of LED’s did you use? Thanks!

RELATED PROJECTS

TOP PCB Companies