Matrix user forums

Thanks a lot for your quick response. The LCD display (20x4 LCD for example) has a macro for displaying ASCII characters, by writing the right byte you get the desire ASCII character. For example, in order to display the letter "A" a decimal 69 is wrote on it. This is an incredible macro because you...

I got it, thanks a lot for your help and support. Do you have any idea if ASCII characters can be displayed on GLCD displays? I would like to know. Thanks a lot again and happy new year. Cheers!

It does work perfect! Question, how do you know what combination of colors where needed to create the desire effect? you got 0x57, 0xff and 0xc0 the first macro "set color to background color" and the second macro "restore foreground color" 0x80, 0x00, 0xff. I tried that yesterday, I was able to dra...

Ok, for example, I'm using a GLCD to show temperature and humidity values from a room. every time the data changes the number update but rewrites over the last data. The 20x4 LCD display doesn't do that, only if it goes from a let's say a two digit number to a three digit and comes back to two, the ...

Thanks a lot for your quick reply. Thanks for the info about the bitmap to read the card and be able to upload a logo or figure, that is awesome. About the print macro, what I understood is that is used to print a string. The ASCII characters is for making a program to write on the display. For exam...

Every time data is updated on a display is necessary to clear the whole thing? I just keep writing over the last data! Is this normal? there is something I missing? Also there is any possibility to "print ASCII"? In order to get data organized in a control sometimes is necessary to name it, for exam...

It is possible to print ASCII characters with this display? Also, would be possible to upload logos or figures from a computer source? Do somebody knows about this? Any help is greatly appreciated.

Thanks a lot STibor, is exactly what it was going on. I just add an output to pin 52 (B1) before initialization and it work. Fantastic!!! I really appreciate the time to help me. I hope I can return the favor. Thanks a lot guys!!! I'm posting this silly program for users who want to test this displa...

Do you have success working with this GLCD display? I appreciate the tip I'm going to try that to see what happens, it will be grate to have it working since is a component of affordable price and availability, also the size it's perfect for a professional application. Thanks a lot and happy new yea...

Thanks a lot for your reply, The property panel does not show a connection point for the reset just data (high and low byte), read, write, reg s and chip select. How is the connection for the reset pin done? I got a little confuse. Maybe is why the screen does not respond except for the back light c...

There is not any better data output than a GLCD display, but only when it works!! So far I tried the ILI9341 and a SSD1289 and neither work. I'm using the Arduino uno and the Arduino mega 2560. I got this displays from ebay, and so far no success with them. I'm wondering if any of you guys have any ...

Hi Dazz, bad and good news. I accidently deleted the avcr.ArduinoA.bat from the directory, however, I did install the one you send me and now is programming straight to the board!! I have not installed the whole hardware to check the functionality but at least is not showing the error and it says pr...

Thanks a lot Dazz. I don't know how to use the program attached, I tried to opened it but a pop-out came out saying that windows could not open files with .rar domain. please let me know at your convenience. I will appreciate that, so I can started to get my project going until problem get solve. I ...

Thanks a lot Dazz, this is what I got so far in the settings: Location: $(appdir)compilers\avr\batchfiles\avrc_arduinoA.bat Parameters: $(chipalt) wiring com9 115200 "$(target).hex" It looks the same parameters you send me the only difference is that there is not dot/comma in there. You post this fo...

Now the communication port matches the communication port used by the Arduino mega, but still the message "Error returned from [avrdude]". Can somebody help me with this????? It's frustrating to don't know how to fix this error. Thanks a lot for your cooperation.

I need to get my Arduino mega 2560 working, I got a project from my university and I need the quantity of outputs available in this controller. I read the forum topic by Benj about this issue and I did everything that is suggested there without success. I need to get this controller working as soon ...

I just did, it worked right!!! You were right, I probably damaged the one I was using because I did used it with 5V instead of 3.3 volts and that's why I give up for a while. Today I just did a voltage divider network using a 4.7 Kohm and a 2.2Kohm, and now I have a 3.3v logic signals (DATA, SCK, A,...

By the way, I've seen that you have use the ILI9341 display. can you tell me what microcontroller did you use? for some reason I'm not able to download your program to take a loo at it. I'm using Arduino uno but the display its not working at all, it does not display anything. I have to say that I b...

Yes I already read it. the problem is that every time I want to download the new component it kick me out of the program saying that I can not open this project unless I got a valid project working, so I opened a project and tried again to down load without success. Also my display does not display ...

Hello, thanks a lot for your reply. I tried to interface with the ADC 3208 SPI communications protocol without success. I got no idea what I'm doing wrong. Once I achieve that, I will finished my project. Any help is greatly appreciated. Bye.

I tried several modifications in my program but not able to achieve anything. I guess I should try another ADC.

I'm trying to interface the arduino uno and the ILI9341 display but it's not working. It's frustrating that the only display I can work with it's the 20x4 liquid display. Here is the simple program to display a string but for some reason I can't make it work. I bought this display on Ebay. Is there ...

I got the program for the MAX6675 working. It was more simple than communicating with the ADC3208. In this case the writing command are needed to set the chip, also, the write data command needed being done at the rising edge and reading in the falling edge of the clock respectively. I tried differe...

Hi Benj, thanks for your help. I did a temperature controller project and you help me with it before, but the SPI program was different. The program for the controller only included to read data from the MAX6675. For what I see on the SPI blog, the read write commands should be done separately, the ...

I'm having a problem communicating with the ADC 3208 IC. It's SPI protocol 12 Bit ADC. Here is my program and chip datasheet. I don't know what I'm doing wrong. I will appreciate any help or advice.