Hi, I am using the LK204-25 with keypad interface and a Javelin stamp controller to display vertical graphs and have a few question about data types.
1. Can I send double values instead of ints to be graphed? ie 1.58 or 10.62.
2. If so, could you provide an example.
3. Is data only sent a byte at a time?
LK204-25, 4x4 matrix keypad, javelin stamp
Hi enwsteve,
Thank you for posting.
When drawing graphs you will be filling in pixels inside a certain range. For horizontal graphs you have a range from 0 to 20. For vertical graphs you have a range from 0 to 100. What you can do in your programming is to group the decimal numbers with the pixels. For example 1 can be a height of one, and 1.5 can be made into a height of 2. Depending on what you would like to increment by. For more detailed information on the bar graphs please refer to section 5 of the manual at http://www.matrixorbital.com/files/LK204-25.pdf . Almost anything is possible, aslong as you program it correctly.
You do not have to send one byte at a time, you can also group them. For examples of programming the javelin stamp, you can go to http://www.lcdforums.com/forums/viewtopic.php?t=938 .
I hope this information helps you out. If you have anymore questions or concerns, please feel free to post.
Best Regards,
Thank you for posting.
When drawing graphs you will be filling in pixels inside a certain range. For horizontal graphs you have a range from 0 to 20. For vertical graphs you have a range from 0 to 100. What you can do in your programming is to group the decimal numbers with the pixels. For example 1 can be a height of one, and 1.5 can be made into a height of 2. Depending on what you would like to increment by. For more detailed information on the bar graphs please refer to section 5 of the manual at http://www.matrixorbital.com/files/LK204-25.pdf . Almost anything is possible, aslong as you program it correctly.
You do not have to send one byte at a time, you can also group them. For examples of programming the javelin stamp, you can go to http://www.lcdforums.com/forums/viewtopic.php?t=938 .
I hope this information helps you out. If you have anymore questions or concerns, please feel free to post.

Best Regards,