
Elements - Analize of the LCD board connection to Atmega328pu and /or motherboard.



1) All what is linked to the - : 

VSS, VO, DB0, db1.

2) all is linked to the + :

VCC, RS.

3) LCD to Atmega pins or parts of the circuit board : 

- VSS on LCD goes to Atmega VCC pin7
- E   on LCD goes to Atmega     pin 13 
- RW goes to middle pin of the the contrast trimmer (wich is not linked to general - (??) 
- DB6 on LCD goes to Atmega     pin 11
- DB7 on LCD goes to Atmega     pin 6 
- LED + on LCD goes to Atmega   pin 5
- LED - on LCD goes to Atmega   pin 4

