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it happened for meI'll try that as well. Say I had something hooked up wrong. Could that possible corrupt or erase the program on the chip?
I'll try that as well. Say I had something hooked up wrong. Could that possible corrupt or erase the program on the chip?
the controller element worked fine when i bread boardedWould the program supposed to be able to work with the current setup? If you could that would definitely help.
Once again, thank you guys for helping me get this figured out. I tried everything I could think of on my own.
Would the program supposed to be able to work with the current setup? If you could that would definitely help.
Once again, thank you guys for helping me get this figured out. I tried everything I could think of on my own.
I tried the pic element on breadboard again. I felt it, a question of one or other wires not connecting properly in the breadboard.Well I tried your layout tonight ........
I don't know what's going on with this. I read a lot about this stuff and it is all supposed to be really simple.![]()
I did notice some of the voltages were fluctuating. So it does appear to be electrical noise causing this? Do my connections seem to be right on the breadboard?
I ordered some .1uF caps yesterday. I should get them today or tomorrow. I will also try some thicker wires for the LCD.
Thanks.
Thick wires I meant to suite breadboard wiring, not to cause loose connections due to loose grip inside the bread board.hi,
Electrical noise can cause problems on project boards.
You dont need thick wires to the LCD data pins, the signal currents are minute.
The twisted pairs are not required.
Thick wires I meant to suite breadboard wiring, not to cause loose connections due to loose grip inside the bread board.
Thanks, we generally use colored single strand 22swg wires for breadboard connectionsI find that solid PVC insulated wire fits perfectly well in project boards, twisted multi stranded wire is unnecessary and prone to shorting.
This project does not require thicker wire for connecting the data/control lines of the LCD.
Thanks, we generally use colored single strand 22swg wires for breadboard connections
hi dustin,
I would agree with Sarma regarding the use of the finished pcb, the project board layout is messy and prone to electrical noise etc.
On the pcb I would add a 100nF cap across the +V and 0V pins of the PIC , as close as possible to the PIC.
From Sarma's and my tests of the programs, it should work if the hardware is ok.
EDIT:
Checking the last LCD PCB voltage list pins 11 thru 14 now look ok.
Thats exactly what I use, stripped down solid strand 'old' telephone cable is ideal.
I would never use multi stranded wire as Dustin has used, especially using two wires twisted together.
So what are you guys suggesting I try to get this working? Is my layout ok, if not what is wrong with it? Should I not be using a breadboard?
I'm stopping by the store to get some 22 gauge stranded wire to replace the wire on the lcd and some 24 gauge bus wire for when I make my proto board. Also picking up some .1uF caps to put in between +5v and ground on the chip.
Correct, this is the component side. Well I had this setup laid out on a pcb and all I got what a steady solid top row on the LCD.