felezjoo PI(the best pulse induction metal detector that I made until now)

[ivconic]

Though, in case of using Avrdudess there is option to completely erase flash and eeprom before programing new hex:

[ivconic]

First program your Atmega with this what i attached here.
Switch it ON for 10 seconds.
Than program your Atmega with FelezJoo hex again.
Than... enjoy!

[ivconic]

I REPROGRAMED THE ATMEGA MANY TIME BUT ITS THE SAME RESULT ONLY SHOYING DEMO!!!

Delete eeprom content.
Are you using regular FelezJoo HEX from author?
In case you try to "hack" it ; it has implemented protection and it will result with only "DEMO!!!" when you switch it ON.
Don't try to hack it!

[faycel]

Re programing atmega

I REPROGRAMED THE ATMEGA MANY TIME BUT ITS THE SAME RESULT ONLY SHOYING DEMO!!!

[basellafe]

Re programing atmega

[faycel]

THANKS
NOW ITS OK BUT IN THE BEGENNIG THEY SHOW ONLY DEMO!!! and stoped here

[freso]

thanks
but where i put this trimer?

put it in pLace of the 22 k resistor..... Remove the 22 k resistor and solder the trimer in its place and dont forget to solder the middle leg of the trimer to one of the two other legs thaN adjust

[faycel]

put reseter 19 to22k trimer and adjust it down that if u have ablack box

thanks
but where i put this trimer?

[basellafe]

put reseter 19 to22k trimer and adjust it down that if u have ablack box

[faycel]

thanks
lcd is ok i test it with other project

NO ONE CAN HELPE ME

[faycel]

short sound is meaning that atmega has programed well but check lcd connection if ok change lcd

thanks
lcd is ok i test it with other project

[basellafe]

short sound is meaning that atmega has programed well but check lcd connection if ok change lcd

[faycel]

THANKS IVCONIC
I VERIFIED THE PIN IS IN GND
BACKLIGHT IS OK
CONTRAST: THE FIRST LINE IS ALL BLACK BOX
BUT THERISE A SHORT SOUND IN THE BIGENING FROM BUZER

[ivconic]

PLEASE I PROGRAMME THE ATMEGA WITH CORRECT FUSES BUT WHEN I POWER THE DEVICE THE LCD SHOWS ONLY BLACK BOXES BUT I M LEASING TO A SHORT SOUND FROM BUZER. WHATS THE PROBLEM?
SORRY FOR MY ENGLISH

LCD pin 5. to GND.
Contrast?
Backlight?

[faycel]

PLEASE I PROGRAMME THE ATMEGA WITH CORRECT FUSES BUT WHEN I POWER THE DEVICE THE LCD SHOWS ONLY BLACK BOXES BUT I M LEASING TO A SHORT SOUND FROM BUZER. WHATS THE PROBLEM?
SORRY FOR MY ENGLISH