LCD BARgraphs

[Ioannis]

AND a level detector output at pin 13 ....

AND it works down to audio frequencies too ...

AND NE604 an CA3089 show same functionnal blocks ( of interest here ...) inside

Alain

Well, I tested NE604 and was amazed at Audio freqs. A nearly 65dB range was obtainable on a breadborad! Incredible! So the LCD_Bargraph has now a friend for audio signals making great VU-meter. One catch is that NE604 is expensive one. Here about 10 Euros in small qts. Thanks Alain for the tip.

C/O Darrel:

While trying to develop my project using your interrupts, I stuck on, I think for sure, stupid one. The attached sample code does not respond to PORTB.0 interrupt. Is there any mistake I 've made and can't see?

Ioannis