i did all the connections as in the instructions........
but when i connect the to the 9 volt battery , i don't find any thing on the lcd screen
(main circuit and sensor circuit are connected together to the battery)
1.i didn't connect the led backlight for lcd to any power source.. is dat a problem?
or can i connect the 5Y for lcd backlight's power source?
2.wat r the uses of presets in this circuit?
3.does the pins between the lcd array and sensor array be kept open?
4.i kept all the pins (5Y, SS,SA)
5.is there any way to check the lcd display?
6.pls suggest sm troubleshooting tips................
am new to this robotics....... ( i hav just done the $40 line follower)
if u can pls help me.........
only if i get this right i will hav confidence to do other projects..
thanks in advance.....