Matrix user forums

It's possible to use a bank of inputs for activating two different interrupts? I'm using an arduino mega in my project, I finally finished my oven automatic controller but I already used the available banks for activating my interrupts. Bank J for the quad encoder, in the port B I'm running the SPI ...

I found my mistake. Yes it is possible to have this two communications working. I don't know if at the same time but in my program they are separate.

I found the whole problem, a bad soldering joint! I can't believe it. well, next time I Will check this hardware issue. Thanks a lot anyways.

I'm using the arduino mega for my project. The issue is that I got a program which uses the I2C clock and also The SPI max 6675 in another section of my program. Even when I got both programs working individually, after merging both of them into a single one, the SPI does not seem to work. I'm not s...

It is possible to run a program using I2C and SPI communication components simultaneously?

I found that the problem is with pin 47 L2, it did not change state during the program. I decided to use a pin from a different group as the analog and now is working normal. Looks that when I use the KS108 I had problems with this pin. I used the another good mega board and it has the same problem....

I forgot to mention that after installing the power supply the fix reading changed to 3714.9 F the same value display if I disconnect completely the max 6675 from the controller hooked up to the 20X4 LCD. This is another clue to lead me believe that the KS108 is blocking or disable the SPI component.

Today I installed a Matrix power supply to the arduino board and it did not work correctly either. I thought I was overloading the computer USB port and maybe dropping the voltage at a point were the microcontroller did not work right. Now, I believe that there is a bug that blocks the SPI component...

I'm having a very strange problem with a single program. I'm been using a KS108 display because the size and visibility. I did a program a digital thermometer sometime ago with the MAX 6675 and the arduino microcontroller, when I use the program with a LCD 4x20 it works perfect but not when I use th...

I got it. I really appreciate your help. Thanks for your support.

Yes, It's how I was able to find my mistake. I found another example at the forum and that's how I did check this feature. Let me ask you a question, I have seen examples of macros with and without returned variable and they both work. I would like to know the difference in between both, so I can ta...

Thanks a lot. I already found the problem. It was on my programing (component set up).
Best regards.

I'm having problems with the Arduino eeprom. I made a program to write names to create a name list and stored on EEPROM, also the program should show the list if is required. I'm not saying that my program is perfect but it looks like the eeprom component it's not writing to or reading from eeprom. ...

I'm definitely trying this hardware, I did not pay attention to this component before. I have to give it a try! thanks a lot for the advice.

The three displays support by Flowcode are the three mention above, but the other displays such as diablo can be interface using the component VISI, right? How difficult it is to use it with just VISI? Now talking about the other three displays (supported by Flowcode), I have seen that there are mac...

Thanks a lot for your reply. I'm wondering how hard will be to use one of this with flowcode, have you tried one already? I have seen a 4.3" Diablo display with touchscreen and serial posts but I don't have and idea if I could interface it with hardware using flowcode. Any ideas?? I read today about...

I would like to know if it's possible to use a touchscreen. Thanks for your help.

Here are some examples of a quadrature encoder programming. There are different strategies for making a counter, that's what you need to do in order to write on a display. You will convert the numbers to characters by using the command print ASCII, from 22 which is the "space" character to 126 which...

Mission accomplished Benj, it works great! Your new updated component got rid of the 'Y" offset and also the issue with controller 3 (CS3) not displaying it's pixels during reboot or after uploading a program, now it works without resetting the controller and playing with the CS3 pin. I really do my...

I wrote the original post in the Flowcode V6 but when I login in a different day I saw the report bugs section and I thought that it was the right section to post my issue, so I opened another page and copy/paste the same post but when I started to look my program to upload it I forgot to delete the...

I'm having a couple issues regarding the operation of the GLCD KS0108. I found that the problem is with controller 3. If I down load to chip with the CS3 disconnected and then connected when the display starts to work it does not have this shifting problem and it works normal. Also when I reboot the...

I'm having a couple issues regarding the operation of the GLCD KS0108. I found that the problem is with controller 3. If I down load to chip with the CS3 disconnected and then connected when the display starts to work it does not have this shifting problem and it works normal. Also when I reboot the...

Problem solved! I tried the ADS1115 Module with I2C communication protocol and it works perfect with a lot more resolution, 32768 bits!, compared with the 4096 bits of a twelve bit ADC. If any of you guys need more resolution for your project try this module, its cheap (less than 5 dollars) and it a...

Thanks a lot Kersing, I was able to use the code to create a macro to display ASCII characters. I did a program to write on the display and it works just fine. Best regards.

Thanks a lot for your help, I going to try that. I will see if I can implemented this strategy to create a macro to input alphabetic characters in my program.