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1  Community / Local Groups / Re: Anybody near Muncie, Indiana. on: August 21, 2014, 01:50:56 pm
Hey Royal, are you still around? I'm in Richmond. Are you in Muncie or near it?

Jeff - a.k.a AptPupil
2  Using Arduino / General Electronics / Re: Capacitor codes on: October 07, 2012, 11:19:45 am
Wow! I just remembered where I posted this question! LOL  smiley-red
Anyway, thanks for the replies. I did try the 10pfs & it worked. But, like I said, it looked crowded. Then, I remembered reading somewhere that people leave them out sometimes. So, I left the crystal in & removed the caps, & that also worked.
I made an RGB LED mood/night light for my daughter on a Radio Shack protoboard with an ATMega8 with the crystal & no caps. It works fine.

Thanks
3  Using Arduino / General Electronics / Re: Capacitor codes on: September 24, 2012, 12:19:57 am
Speaking of caps... Will 24pf ceramic caps work in place of the 22pf in the ATMega8 (or 168, 328) Arduino circuit with the 16 MHz crystal? No one carries them locally & I have the 24pf's on hand. How much difference will it make. I also have 18pf & 10pf caps. I had thought about putting two 10pf caps in series x2 for the crystal, but that just looks very crowded. I guess, simply put, is there a suitable capacitor alternative for the 22pf caps for the 16 MHz crystal?

Thanks,
AptPupil
4  Using Arduino / Displays / Re: GLCD shield PCB on: March 17, 2012, 02:05:55 pm
Update: I remember where I saw it...Arduino Playground! > KS0108 Graphics LCD library > Wiring and Configuration: > Pinout B panels:  > "Digitron SG12864J4 (also appears to need RESET disconnected for uploads) "
Now my Q is: since mine is a KXM instead of a Digitron SG, is Panel-Type still in question or, is the important part "12864J-4"?
Maybe I'm just a little paranoid, but, as I said before, I don't want to smoke this! 
5  Using Arduino / Displays / Re: GLCD shield PCB on: March 17, 2012, 01:16:40 pm
OK, so how do I figure out which panel I have, A, B or C? I bought this on Ebay & I'm not sure.
The info I do know:
* I am new to electronics (45 yrs old, have known for yrs what a resistor does, known for 2 months how to read one!   smiley )
* Type:COB STN Model Number:128x64 Pixels: 128x64: Outline: 93x70x13mm Viewing area: 72x40mm: Dot size: 0.48x0.48mm Controller KS0108 with backlight Blue-white KXM12864J-4 graphic LCD module formation point.

I've looked through all the info that the seller sent (which is pretty lengthy), & it seems like I saw something that made me think that it is a B-type. But, I really don't want to smoke this!!

Any help would be greatly appreciated.
Jeff
6  Using Arduino / Programming Questions / Re: Frustrated NOOB!! LCD Keypad Shield - Sain Smart on: March 11, 2012, 09:15:44 pm
Update: Used a sketch that worked, copied/pasted LiquidCrystal LCD(8, 13, 9, 4, 5, 6, 7); in place of LiquidCrystal lcd(12, 11, 5, 4, 3, 2); & it worked.
Trying another....
Nope...
Another...Eureka!! "Hello, World!" w/life-counter... & "Display" - blinking...& "Autoscroll" - numbers...all from the File_Examples_LiquidCrystal menu of the DE (hope I'm using terms correctly!). Just did the change as stated above.
Note to self: Read/study Beginning Arduino Programming!!!
7  Using Arduino / Programming Questions / Frustrated NOOB!! LCD Keypad Shield - Sain Smart on: March 11, 2012, 06:38:03 pm
OK, I'm new to electronics and I got the SainSmart LCD keypad Arduino shield from Ebay. I've got an Arduino Mega 2560. I have been able to load the "ADC Key Testing" sketch from the seller, nichegeek but, I can't seem to get any others to work, i.e., Autoscroll, Display, etc. from the example codes that come with the Arduino 1.0 software & "GuessTheNumber" found elseware without getting a lot of error messages. I loaded "Hello World!" and it compiles & loads fine according to the Arduino 1.0 but, the shield doesn't respond or show the message. The LED on my Mega flashes, so I know that it sent. However, while looking the code over, I saw that the pins in the sketch are calling out : LCD RS pin to digital pin 12, LCD Enable pin to digital pin 11, LCD D4 pin to digital pin 5, LCD D5 pin to digital pin 4, LCD D6 pin to digital pin 3, LCD D7 pin to digital pin 2, LCD R/W pin to ground, 10K resistor: ends to +5V and ground, wiper to LCD VO pin (pin 3), which are different than what the docs (from SainSmart - shown below) say this uses. I tried to figure out the correct pins/locations but have had no luck.

In short: HELP! Please.

Jeff
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