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Piclist
A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.
Search Results for "led"
PIC18F4620 not starting? [3 Articles]
Nelson Viegas - Jun 15 2008
Hello!
I'm about to use a PIC18F4620@20Mhz for now, but it is unable to
start. The circuit is too simple (just a flashing LED), and if I use a
PIC16F678A, the circuit works fi... 
Reset on Halt or on Breakpoints
scottmack1 - Jun 10 2008
Guys, I am using a 16F887 with MPLAB 7.60 and a ICD 2.
I need to continue coding on a project I worked on a while back.
Jumping in and fixing stuff I have managed to get into s... Multi Pattern LED Controller
kalingajay - Jun 10 2008
Hi All,
I am new to PICs. I found a multi pattern LED controller based on PIC16F628A. It has more
than 10 LED Patterns and each pattern run 5 times and automatically jumps to ... Multi Pattern LED Controller [2 Articles]
kalingajay - Jun 10 2008
Hi all,
I am new to PICs. I found a multi pattern LED controller based on PIC16F628A. It has more
than 10 LED patterns and each pattern runs a 5 time and automatically jumps t... Re: Re: Getting at least 5V@15mA output from RA4 pin of PIC16F72
Eirik Karlsen - May 29 2008
Jason,
you asked for 5V out (source) at high current, and there is just no way of doing that.
If you just want the LED to light up it is probably more common to do as you sugge... Getting at least 5V@15mA output from RA4 pin of PIC16F72 [6 Articles]
Jason Hsu - May 28 2008
The output load consists of an LED in series with a current-limiting
330 ohm resistor. At the time I decided on the PIC16F72, I didn't
realize that pin RA4 had such special, str... Re : new here, some questions [2 Articles]
robert santos - Apr 28 2008
----- Message d'origine ----
De : murrayatuptowngallery
À : p...@yahoogroups.com
Envoyé le : Jeudi, 10 Avril 2008, 9h37mn 48s
Objet : [piclist] new here, some questions... Pic C library + tutorials
ih_sydney_2003 - Apr 28 2008
Hi all,
I've built up a few libraries for accessing different devices and have
published them for everyone to enjoy. As I've been working through the
code and tidying it up, I... 16F818 and the dodgy oscillator [4 Articles]
Staiger - Apr 17 2008
Colleagues,
I'm trying to use the 16F818 for the first time (prior to this I've
used the 16F84 and the 12F509).
I want to use the internal oscillator, and I'm having a heck... new here, some questions [3 Articles]
murrayatuptowngallery - Apr 17 2008
Hi:
I'm an electronics tech but haven't had a uP class since an 8085 one
in 1979 and an 8088 one in maybe 1984.
I have a project I need to uC-ify and have been spinning my w... PIC 16F877A problems... [4 Articles]
shet...@gmail.com - Jan 11 2008
I'm trying to get PIC 16F877A to work with a 20Mhz crystal. I'm a beginner with PIC, tho i have decent exp with other controllers.
i'm having problems trying to get it to work.... PIC 16F877A problems...
shet...@gmail.com - Jan 11 2008
I'm trying to get PIC 16F877A to work with a 20Mhz crystal. I'm a beginner with PIC, tho i have decent exp with other controllers.
i'm having problems trying to get it to work.... Need Help Urgently - Mysterious Problem after adding Function [3 Articles]
Roger_4U - Dec 8 2007
Hi Folks:
I am up a creek, I have been working on some code for over a year and
I am totally stumped with this last problem:
Device: Pic16F88
Chip OSC: 20Mhz
Programmer: ... Re: Need Help Urgently - Mysterious Problem after adding Function [3 Articles]
Jcullins - Dec 8 2007
sounds like you may have something declared as byte and using it as word so
it writes over the next memory location.
Just a first guess
----- Original Message -----
From: "... RS232 serial communication problems with 18F458
Gavin Dingley - Nov 28 2007
Hi,
I am fairly new to pics, so you will have to forgive me. I am playing with a 18F458, no particular reason for using this device, it's just I had one available, and for this qu... Scrolling LED display [2 Articles]
Nandakumar J - Nov 28 2007
Can somebody hilighten me on the method of amking the scrolling LED display
Regards
jnk
... ICD2 Busy and Hung
scottmack1 - Jun 27 2007
I am having some kind of problem with the communications to the
ICD2. When I start MPLAB IDE v7.60 with the ICD2 plugged in my
computer's USB port and the ICD2 plugged into my... USB on 18f2550 [7 Articles]
Lez - May 25 2007
Does anyone know of / have / could write (cheeky!) a simple example
program to allow say a set of leds (why always a set of leds?) to be
turned on off from the PC with the PIC co... Don't understand why PORTA pin isn't working like before [2 Articles]
Roger_4U - May 23 2007
Hi I am new to the 16F88 chip and I am trying to run some code that
previously worked on a 16F628. The code is to simply cause an LED to
blink on/off after a delay period.
> ... 18F4331 and PWM [2 Articles]
Paul L - Mar 21 2007
Hi.
Well, after getting my new PIC, it didn't take long to get it going! Was a little worried at first! I can now receive using USART and then using the values taken put that in... Re: A few questions... [8 Articles]
Paul L - Mar 20 2007
Hey!
So far i have got an LED blinking on the PIC18F but so far i really like the 18F, i'm looking forward to being able to use the MOVFF! ;-)
Its nice that there are no Banks to... Re: usart PIC16F877 [2 Articles]
Mr No - Mar 5 2007
I suppose you are trying to connect two PICs using UART. right? In
that case, the clock speed error should not come in. I suggest u
should tried to send a series of bytes and c... Re: RC5 Code in C [3 Articles]
Kamal Shankar - Jan 5 2007
> Yes, both Rx and Tx, it was a communication-module
> for
> my robot-projects, so they could talk and listen to
> each other using RC5-infrared.
Me too !
I actually w... RE: pause? [2 Articles]
Alan KM6VV - Jan 5 2007
Hi Bill,
What you want is an auto-repeat on the buttons. Delay for say 1 second,
then repeat if the key is still held down. That's after you've debounced
the keys. Somethin... more 2550 issues [2 Articles]
Lez - Nov 2 2006
well I got the programmer working.
I burned it with F88 code, changed some port assignents etc as I now
have more IO lines.
Turned it on and all looked fine.
Except, the ... Re: code rquest........(dont hit me!) [7 Articles]
Eirik Karlsen - Oct 31 2006
Lez,
attached is a skeleton I'm working on right now for a new program.
its for a F242 so change the proc type at the top, and remove the
mathlib reference. Other than that it s... what is the easiest way to control a pic from a pc? [8 Articles]
mr_gees100_peas - Jul 21 2006
Lets ay you are on a budget and you already have some 16f877a pics
laying around and a bunch of other parts (resistors, caps etc etc).
You have your compiler and pic programer an... making a 18f2550 behave as a pl2303 virtual comport and 16f88
Lez - Jun 5 2006
Ok, I think I'm biting off more than I can chew here so I'm hoping
someone has already done this........
I have used usb/serial dongles with a pl2303, connected to a pic16f88
an... Watch Winder [2 Articles]
Dave C - Jun 3 2006
Howdy:
I think I've come up with a project to help me learn programing and
use of the pic micro controllers. My wife bought me an automatic
watch
for our 22nd anniversy, n... Does RD/TX pins of PIC need a 330 resistor to drive a Opto ? [2 Articles]
Kamal Shankar - Jun 3 2006
Hi
I was reading the electrical specs of the PIC16F876A and saw that PORTC=20
sinks 200mA of current.
If I was to interface an optocoupler's LED side (which sources max=20
... timer pic [4 Articles]
randy ram - May 18 2006
Has anyone tried this before?
I want to use say the PIC12 to count down to say 24 hrs or any time
given the light up a LED. Then loop back again start counting again.
... Instruction Time [3 Articles]
Paul - Mar 12 2006
Hi. I am after a clear answer cause i'm trying the PIC Datasheets and
its giving me a headache! What i would like to know is, say my
PIC16F877 is running on a 4MHz clock, how ... One pin for both an input (switch) and output (LED) ?? [3 Articles]
Dave Mucha - Jan 29 2006
Hi all,
I am looking for a way to use one pin for both an input and an output.
An LED is the output. and a switch would be the input.
I can see a few ways to have both on one... Differences in CCP between 16F819 and 18F452
Alan Marconett - Jan 19 2006
Hi to the list,
I've got a project to generate stepper pulses on a PIC. It is currently
running on an 18F452, and I need to get it running on a 16F819 as well.
I'm u... RE: Re: 16F870 byte swapping
Mark Adams - Jan 8 2006
N o apoligies necessay. This is my first PIC project and am greatfull for any input. I agree about posting code, it looses its format and becomes hard to read, for me ... Re: Time Synch in a PIC application [2 Articles]
Chris - Dec 15 2005
--- In piclist@picl..., "Ed Laughery" Re: New to Pics [5 Articles]
Bob Hyland, PMP - Dec 8 2005
I have a discussion question for the group. Background: I am fairly
new to PIC's. I am mainly working with the 40 pin devices (16F747 &
16F777) on my current project. To d... PIC 16F747 (and PIC 16F777)
Bob Hyland, PMP - Nov 30 2005
I am seeing strange results using a PIC 16F747 (or a 16F777). I have
the following code segment, which I have made very simple to try to
determine why I have this issue. I... 16F747 help needed [2 Articles]
Bob Hyland, PMP - Nov 19 2005
I have a couple of newbie type questions.
Background:
I have been mainly working with the 16F84A in the past (although I
also acquired a couple of 16F684's and a 16F63... RE: Photocoupler? [2 Articles]
Alan Marconett - Oct 27 2005
Hi Bill,
By opto, they mean a 4N35 or similar optocoupler. Its purpose is to isolate
the controller electronics from the harsh motor power circuits. They both
disconnec...