Hi everyone,
I've exhausted myself and ideas trying to get my LCD working and thought I'd ask to see if anyone else has this problem.
I'm using a 28X2, no issues and have tested this with my other projects and working fine. I recently bought the budget LCD display, the Axe133 LCD display and powered it up this morning. Worked fine, did the "hello!123" test and no problems.
I started just seeing what else I could do and uploaded this to the micro-controller:
hsersetup B9600_4, %10000
hserout 0, (13) : pause 100
hserout 0, (13) : pause 100
hserout 0, (13) : pause 100
pause 500
hserout 0, ("ac1", 13)
pause 50
hserout 0, ("acc", 13)
hserout 0, ("ac81", 13, "adcount: ", 13)
pause 10
hserout 0, ("ac95", 13, "adpulsin: ", 13)
pause 10
do
count C.2, 1000, w0
w1 = 0
for b8 = 1 to 2
pulsin C.2, 1, w2
w1 = w1 + w2
next
w1 = w1 / 2
hserout 0, ("ac89", 13, "ad ", #w0, " ", 13)
hserout 0, ("ac9d", 13, "ad ", #w1, " ", 13)
pause 100
loop
It came up with jargon on the LCD display and I became worried so tried to upload the picaxe test program again (the "Hello!123")
Now it has been coming up with black rectangles. When I adjust the pot it goes away as expected but when I upload the program to the microcontroller, it uploads no problem but nothing changes on the display. As it was working this morning and hasn't been moved or touched until the rectangles came up, I don't think it is a hardware issue, however I have gone over all solders again, measuring the voltage between pin 1 and 2 (no problems.) I am measuring around 73 ohms between the +5v and 0v. Is this normal?
If anyone can help me it would be much appreciated, I have spent all day trying to solve this issue reading through all the forum but not really finding and answer.
Thanks all