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by Benj
Thu Dec 15, 2011 5:51 pm
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Elektor Live & Element14 Wireless LAN & Twitter

For anyone who is interested here are links to the recent Elektor and Element14 seminar ran by Matrix on linking our Wireless LAN E-block to Twitter. Seminar http://www.element14.com/community/groups/technology-training-webinars?view=video Q/A Writeup http://www.element14.com/community/docs/DOC-3970...
by Benj
Mon Jan 09, 2012 11:11 am
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Re: Flowkit and 3.3V (dsPIC33) devices

Hello, Our EB064 dsPIC programmer has ICD built in which works at 3.3 or 5V. The Flowkit ICD tool only works at 5V so you will need to use 5V tolerant I/O if possible. You may get away with using the Flowkit on non 5V tolerant pins as the current used is minimal but I cannot guarantee that the pins ...
by Benj
Fri Mar 02, 2012 10:05 am
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Re: LCD ECIO28 Random chars

Hi Jac, Yes the RA5 pin (RE2 for the ECIO40P) is simply connected via a resistor to the LED and USB 5V supply. The resistor is such that you should be able to use the pin as a standard I/O in your application. Hi Graham, The RA4 pin can be used as a standard I/O by using a 4.7 - 10K resistor between...
by JohnCrow
Sun May 20, 2012 10:09 am
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Simple Digital Thermometer

Simple Digital Thermometer Introduction My earlier temperature projects have all used the LM35 device. This is a 3 pin device in either a TO-92 or TO-202 style package. The device comes in a few different accuracies, but all operate with the same basic 10 mV/°C output. The main problem with the LM3...
by JohnCrow
Sat May 26, 2012 6:31 pm
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Re: Ultrasonic Distance sensor using HC-SR04

Hi Jac Ive just tried my RPi with the HDMI - VGA adaptor. Works fine. Not had chance to really play with it and check just how high the graphics resolution will go, but the default looks fine.During the boot stages the text messages are small but readable. Proberbly about the same size as booting a ...
by JohnCrow
Sun Jul 15, 2012 8:18 pm
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DIY Breathalyser

MQ3 Breathalyser This project utilises a simple alcohol sensor to create a basic breathalyser. Gas Sensor Safety Notes. Gas sensors operate at high temperatures. Therefore the sensor may become hot to the touch. They must never be opened as they contain toxic chemicals. They must never be allowed t...
by Benj
Thu Jul 19, 2012 6:50 pm
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Propellor Clock POV Style Display Example Code

Hello, Here is my attempt at creating a propellor display, I started out with PIC then moved to AVR for speed and then to dsPIC when this became available again for the speed and extra number crunching capabilities. The PIC and AVR boards had quite large LEDs which meant that at 32 LEDs the board wa...
by DavidA
Tue Aug 14, 2012 11:33 am
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Flowcode v5.4 for PIC Released

Hey Guys, The latest release of 5.4 is finally here. The patch is available from here: http://www.matrixmultimedia.com/resources/getresource.php?id=682 To download the full installer please enter the last 12 characters of your Flowcode licence key into the Downloads box on the main Flowcode page: ht...
by Benj
Mon Aug 27, 2012 9:47 pm
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Re: Propellor Clock POV Style Display Example Code

Here is another vid along with another fw update and a schematic. I've left the sound of the motor in this vid, its not as bad as the camera picks up but it is a bit louder then I was hoping for. I think most of the noise is generated from having a slightly imbalanced prop board so I will have a pla...
by Steve001
Wed Aug 29, 2012 10:47 pm
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Controlling a LCD Display with a digital pot

I have used in one of my projects the above display and digital pot so that the user can adjust the screen contrast via push buttons. The X9C103PZ is digitally controlled potentiometer. This device consists of a 99 resistor Array, wiper switching network, a control section, and non-volatile memory. ...
by JohnCrow
Tue Oct 02, 2012 6:31 pm
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Raspberry Pi Adaptor

Using The Raspberry Pi & The Matrix EB-080 Interface Board Part 1 Warning Points highlighted in red are where you could cause damage to your hardware if care is not taken to ensure connections are correct. Remember the Raspberry Pi hardware operates at 3.3V, even though the actual power supply ...
by JohnCrow
Sun Nov 18, 2012 3:14 pm
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Gertboard & Flowcode (AVR Version)

Gertboard & Flowcode (AVR Version) Introduction: The Gertboard is designed as an GPIO expansion to the Raspberry Pi computer. It has 12 LEDs, a motor controller, 6 open collector drivers, I/O buffers to protect the GPIO port on the Raspberry Pi. Other connections are A-D and D-A converters. The...
by Benj
Fri Nov 30, 2012 2:53 pm
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Re: additional components + software

Hello, I can confirm that Flowcode v6 will allow this kind of functionality :D We will have a raw gLCD component which handles all the simulations side of things and provides blank functions that you can put your code into. You can then build up a new component using the gLCD as a base layer and thi...
by Benj
Thu Dec 13, 2012 3:56 pm
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Re: Eblock Suggestion

Hi Jordy,

Many thanks for the suggestion, I can confirm this is in the pipeline, release date (probably) April 2013.
by medelec35
Mon Dec 24, 2012 2:03 pm
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Re: watchdog and 16F88

Hi Rob no problem. I don't work for matrix so I just answer from home, in the hope of helping someone. Is this setting for both Simulation and real? Just for the real hardware and not simulation. You probably don't notice a lot of difference between Clock speed (View, Project options) set at 4MHz &a...
by Jan Lichtenbelt
Sun Jan 20, 2013 3:30 pm
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LCD any number

Showing variables of the type Int, UInt, Long and ULong on LCD screen gives problems. Please find a macro to show any number. This maco shows any number on LCD screen. Numbers may be boolean, byte, Int, UInt, Long or ULong. Input: 1) the number 2) the number of bits, which is 1,8,16 or 32 for the po...
by JonnyW
Sat Jan 26, 2013 11:53 am
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Flowcode v5.5 with DSP for all variants

Good morning. Just to let you all know that there is a latest install of Flowcode v5.5 for all variants available. This is the first Flowcode version to package DSP components. You can upgrade your current version through Flowcode. Select 'Online Resources' or 'Check For Updates' in your registered ...
by victorhantelmann
Sun Jan 27, 2013 11:19 pm
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Re: EB-005-12-3 and PIC18F26K80 with DEM20486SYH-LY LCD Prob

Thank you all for helping, I am attaching the final test code and the INITIALISATION SUPPL for this kind of display. It is working well and I hope that it will be useful to others since it is a cheap and rather big display. I will follow mr. kersing advice later as soon as I will have the time, than...
by brandonb
Sun Jan 27, 2013 10:25 pm
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update: tqfp packages and capacitive coupling

i did some internet searching and kept running into this @Brett – Imagine my surprise being shown the high-tech board cleaning system when touring an assembly house I hired. Kenmore. I shouldn’t have been surprised because when I was just a young engineer and had a board come back from the prototype...
by Benj
Wed Jan 30, 2013 6:44 pm
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Re: Programmer Selector !

Hello, I think this is currently possible. Setup the compiler options as you need for the programmer or compiler then type a new name in the text box next to Option list: then click the disk icon to save the profile. The entire compiler options profile can then be selected from the drop down menu. H...
by Jan Lichtenbelt
Fri Feb 01, 2013 10:29 am
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Re: Frequency counter 35 Mhz

The frequency counter Version 4.1 is special to show a frequency on a LCD screen. This program is not helpful if you want to use the (value of) frequency for other reasons. This version 5 is a special macro to measure the frequency. Because values to 2 MHz are possible, the frequency variable will b...
by acestu
Sun Feb 17, 2013 1:24 am
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Re: Flowcode Programming Error !

Hi Fellas, This problem has just disappeared by itself, I think I know what has happened, because the version of Windows XP on my recovery disc is only service pack 2, my machine uses Automatic Downloads in the background to upgrade to service pack 3, I have just turned on my laptop and it said it w...
by acestu
Sun Feb 17, 2013 4:01 am
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Beginners Guide To Interfacing Micros

Hi Fellas,

I have just come across this very informative PDF file on interfacing the microcontroller if anybody is interested:

http://neo.dmcs.p.lodz.pl/tm/pdf/MIC.pdf


cheers
Acestu :D
by brandonb
Fri Feb 22, 2013 2:12 am
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Re: Add "Else If" to Decision Block

just pointing out, code below is same as flowchart

Code: Select all

while(1)
{
   if(up==1){
     }
    else if(down==1){
      }
      else if(flow==1){
      }
       else if(stop==1){
      }
}
by Benj
Fri Mar 01, 2013 1:43 pm
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Flowcode dsPIC & PIC24 could not allocate section

When using large variables in Flowcode for dsPIC and PIC24 you may get this error message. Link Error: Could not allocate section .varname, size = xx bytes, attributes = data near This is because the near compiler model is being used for optimization. Only the lower 8K of memory can be used in the n...