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Recent Forum Posts

Re: FSK demodulator in firmware

there are some good ideas here
https://www.romanblack.com/DTMF/DTMF_alg.htm
richard Today, 00:01

Re: FSK demodulator in firmware

Plenty fast, I'd say.
At 32MHz an instruction cycle is 125ns. That's ~1250 cycles between zero crossings.

I'm not trying to interpret/decode the data, just demodulate the signal.
Every other...
HenrikOlsson Yesterday, 20:42

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

edited BaudR var word : baudr = 3313 and TRISA = 111110

1st receiving random characters
2nd normal

what could be done to avoid the first
thanks.

9997
jackberg1 Yesterday, 20:10

Re: FSK demodulator in firmware

Although it is a low frequency, still a zero cross happens every 156.2 usec for the 3.2KHz signal.

Will the pic be fast enough to process that signal? I am sure ZCD and timers will be enough, but...
Ioannis Yesterday, 18:48

FSK demodulator in firmware

I have what looks to be a 1.6/3.2kHz FSK signal that I'd like to demodulate to a bitstream using a suitable PIC.
It's a two wire system with bursts of the FSK signal riding on top of the DC supply,...
HenrikOlsson Yesterday, 18:07

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

from my last edit,

' Jumpers
' J3 300 600 1200 2400 4800 9600 14400 19200 28800 38400
' 1--2 RB7 On On On On On On
' 3--4 RA2 ...
jackberg1 Yesterday, 16:47

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

when testing baud rate, usualy I start at 300 and up

when it stopped working then I set pace = 1

and re-start from the last baud rate tested.

16F690 Xtal 20Mhz

set pace to 1
sEROUT2...
jackberg1 Yesterday, 16:12

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

I only tested at 19200 and the Backlight works OK.

But text, could not send up to this moment.

WIll try different Baud Rate. Though I test on a PIC16F1827 at 32MHz.

Ioannis
Ioannis Yesterday, 15:39

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

set pace to 1 , and it's working
sEROUT2 lcd,baudR,pace,[254,128,"ABCDEFGHIJKLMNOP"]

thanks.
jackberg1 Yesterday, 11:57

Re: serial LCD 1602 Backpack using PIC16F690 for Hitach HD44780

My code honours the timing as specified by the lcd defines , timing that most lcd displays need esp the cheapest and oldest examples of them.
If you send data at a rate that exceeds the specified...
richard Yesterday, 06:32

LCD
3.5" Color LCD code example

by
DaveC3

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Published on - 12th September 2010 16:24 Number of Views: 15901

I recently bought a 3.5" color lcd from China from
http://cgi.ebay.com/3-5-262k-TFT-240...item1c153a8de4 ...

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Color GLCD Project, Analog clock

by
DaveC3

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Published on - 13th May 2011 21:45 Number of Views: 10261

The attach zip contains a number of projects, the clock application is called "Clock_8_BIT_par_TFT.pbp" ...

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LCD BARgraphs

by
Darrel Taylor

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Published on - 20th May 2010 15:59 Number of Views: 9224

<embed name="LCDbarGraph" src="http://www.darreltaylor.com/files/LCDbar_INC_56k.wmv" type="application/x-mplayer2" ...

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LCD_AnyPin.pbp

by
Darrel Taylor

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Published on - 1st June 2010 05:19 Number of Views: 8165

This has come up several times, and likewise, I've tried to approach it several times...

After a 6 month pause ...

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Easy LCD Contrast

by
Melanie

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Published on - 1st June 2010 05:02 Number of Views: 10752

Here's a useful and very simple way of controlling the contrast on an LCD with just two Resistors and a line of code. If ...

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LCD serial backpacks

by
Darrel Taylor

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Published on - 30th May 2010 01:27 Number of Views: 12780

This LCD serial backpack code was not originally written by Joe S. It was modified by Darrel for use with DT_INTS. (Edited ...

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Using Nokia 3310 LCD

by
ScaleRobotics

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Published on - 31st May 2010 02:37 Number of Views: 18263

The Nokia 3310 is a graphic display that is very cheap. In fact, they cost $2.95 each at Sparkfun http://www.sparkfun.com/commerce/pro...oducts_id=9924 ...

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Using LCD on any combination of pins

by
Darrel Taylor

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Published on - 16th October 2010 15:56 Number of Views: 9665

"How do I scatter the pins of the LCD data bus across multiple ports with PicBasic Pro?"

First, ...

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LCD