Security With LCD - Page 2 - Electronic Circuits Projects Diagrams Free

AtomSoft · 9th July 2008, 01:39 AM

i need buttons for various reasons i made that keypad because it only uses 1 pin on my uC so i save pins. Also if i order one i would have to wait

AtomSoft · 9th July 2008, 01:47 AM

i just had a thought on how i can make it still 1 wire with those keypads but for now i still needed 1 for testing at least at this moment in time.

blueroomelectronics · 9th July 2008, 04:53 AM

Got to get you a micro with more I/O
A 18F4620 is quite a beast.

I've noticed a plethora of users here doing some really great projects in the past few days. Nice keep it up.

AtomSoft · 9th July 2008, 06:37 AM

Plethora = a sufficiently large number

Had to look it up lol Thanks I actually have a 40 pin ( i think ) the PIC18F448 i will be using that. Just have to move the stuff around a bit like the wiring so i can fit it lol

AtomSoft · 9th July 2008, 04:02 PM

Need Some help porting my code. I dont see the issue with it tho. No errors and no halting just doesnt show anything. The lcd works because i tried it back on the 18F1320 breadboard and even tried another lcd just in case.

Also i changed the delays for 20Mhz. I also changed the A/D stuff. If anyone can lend a hand plz...

The issue is i cant see anything on the LCD not even white bars. Here is my code. (for the PIC18F448)

ericgibbs · 9th July 2008, 06:19 PM

Quote:

Originally Posted by AtomSoft

Need Some help porting my code. I dont see the issue with it tho. No errors and no halting just doesnt show anything. The lcd works because i tried it back on the 18F1320 breadboard and even tried another lcd just in case.

Also i changed the delays for 20Mhz. I also changed the A/D stuff. If anyone can lend a hand plz...

The issue is i cant see anything on the LCD not even white bars. Here is my code. (for the PIC18F448)

hi atom,
Is this what you are expecting from the asm.?

Changed part of the LCD init code, also the inverted the LCD Enable.

Had to drop the leftshift before the LCD writes in order to run with the Oshonsoft Sim.

EDIT:
Added main2.asm all changes marked with ++++ , just search, about 10 lines changed.
The delays should be a little longer as you are not using RW DB8 Busy.

AtomSoft · 9th July 2008, 07:18 PM

you are going to laugh lol
that code first doesnt work for me. The code i asked for help in works lol

I wired it wrong meaning i wired db4-7 to rb4-7 instead of ra1-4 lol

ericgibbs · 9th July 2008, 07:24 PM

Quote:

Originally Posted by AtomSoft

you are going to laugh lol
that code first doesnt work for me. The code i asked for help in works lol

I wired it wrong meaning i wired db4-7 to rb4-7 instead of ra1-4 lol

hi atom,
For that code main2.asm I posted, I had to modify the code, so with your original wiring
[even after you have rewired it] it wouldnt work.

You would have to move the A4 thru A1 down to A3 thru A0.

I did that to show you that your code does work...

AtomSoft · 9th July 2008, 08:14 PM

Keypad working here is the code : Attached

AtomSoft · 9th July 2008, 08:15 PM

oh cool ! i knew i misunderstood your post lol

AtomSoft · 9th July 2008, 08:40 PM

Here are some pics:

AtomSoft · 9th July 2008, 09:14 PM

while on the issue of LCDs how can i draw on this? Like how Bill did that little house

AtomSoft · 9th July 2008, 09:36 PM

if i try this: Defining Custom Characters

You think it would work?

AtomSoft · 10th July 2008, 12:49 AM

Here is a schematic:

futz · 10th July 2008, 01:48 AM

Quote:

Originally Posted by AtomSoft

if i try this: Defining Custom Characters

Have a look at Myke Predko's site too. A bit more than halfway down the page.

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9th July 2008, 01:39 AM	(permalink)
AtomSoft	i need buttons for various reasons i made that keypad because it only uses 1 pin on my uC so i save pins. Also if i order one i would have to wait __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 01:47 AM	(permalink)
AtomSoft	i just had a thought on how i can make it still 1 wire with those keypads but for now i still needed 1 for testing at least at this moment in time. __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 04:53 AM	(permalink)
blueroomelectronics	Got to get you a micro with more I/O A 18F4620 is quite a beast. I've noticed a plethora of users here doing some really great projects in the past few days. Nice keep it up. __________________ Bill Smart Kits build Smart People http://www.blueroomelectronics.com

9th July 2008, 06:37 AM	(permalink)
AtomSoft	Plethora = a sufficiently large number Had to look it up lol Thanks I actually have a 40 pin ( i think ) the PIC18F448 i will be using that. Just have to move the stuff around a bit like the wiring so i can fit it lol __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 07:18 PM	(permalink)
AtomSoft	you are going to laugh lol that code first doesnt work for me. The code i asked for help in works lol I wired it wrong meaning i wired db4-7 to rb4-7 instead of ra1-4 lol __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 08:15 PM	(permalink)
AtomSoft	oh cool ! i knew i misunderstood your post lol __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 08:40 PM	(permalink)
AtomSoft	Here are some pics: __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

9th July 2008, 09:14 PM	(permalink)
AtomSoft	while on the issue of LCDs how can i draw on this? Like how Bill did that little house __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro Last edited by AtomSoft; 9th July 2008 at 09:14 PM.

9th July 2008, 09:36 PM	(permalink)
AtomSoft	if i try this: Defining Custom Characters You think it would work? __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro

10th July 2008, 12:49 AM	(permalink)
AtomSoft	Here is a schematic: __________________ AtomSoftTech.com My YouTube Videos! My Favorite Stores: dipmicro Electronics SparkFun Electronics Futurlec BG Micro