LCD audio level meter (VU meter)

http://www.ne.jp/asahi/air/variable/picmel/applications/lcd_vu_meter/index.html

It reproduced it by using general purpose LCD like the VU meter of audio. When having experimented, it opens it to the public because the thing that was able to be used for a practicable level was understood.
It is assumed the composition of the full-wave rectifying circuit and the lag network though 5V single power supply and an analog circuit is simple, and a necessary logarithmic conversion has converted the table into the power supply with the meter in the PIC microcomputer.

These resources can be downloaded here. ver1.65
http://www.ne.jp/asahi/air/variable/picmel/applications/lcd_vu_meter/lcd_bar_...

The explanation is here.
http://www.ne.jp/asahi/air/variable/picmel/applications/lcd_vu_meter/index.html

Category:

Science & Technology

Tags:

• PIC
• LCD
• meter
• 16F88
• SD1602
• Miku
• Hatsune
• VU
• Electronics
• hobby
• PWM
• audio
• LED