Displaying a manually configured string works every time. That is reliable and predictable. I Could not find info on the getBytes from the last suggestion.
I did try another method of capturing data form the GPRS serial port an hour or so ago. I tried: if GPRS. Both methods give the same results. Garble on the LED Display. They are correctly displayed and in the correct positions of the string. They look to be from the extended ascii characters from foreign languages. In example four above I forgot to type the single quotes.
The BetaBrite. Considering your internet background I won't laugh at you. By using 'theString' you only sent the first t in 'theString' and the result is garbage could be consistent garbage but still garbage. Yes, I'm an old network guy. Started with teletype in the 70's. I knew there was a way but could not remember it. I read that when the command BetaBrite. I've tested this with various length strings. Themost I've gotten was a five digit number.
In the betabrite protocol manual actually called the Alpha Protocol. The extended ascii characters are treated as graphics and displayed as such. I can see the relationship of what is on the screen and these extended ascii characters. Also, somewhere in Arduino help land, I read that a char string is not encoded as ascii characters, but two byte decimal representations of the ascii characters. This explains why the sign thinks each character is an extended ascii character.
It's melting my brain. So close to a working project, but yet so far! Actually, I got much of the knowledge from some of the links in that search. While looking through results in the link you provided, it hit me. The problem is not so much as relevant to the BetaBrite as it is in the way data is collected into the string. Here's why The terminal program I use has a hex display.
Just hit me.. I assumed -1 means error, or character not found in string A little history with the BetaBrite displays: in when these signs first came out, I used low power PC with 8 port DigiBoard and "Reflections" scripting software to read phone queue status info and output to the BetaBrite displays. Each tech support group knew how many people were on hold, on hold for over three minutes etc. They had their own display. I'v a pretty good handle on how to communicate with them. I tried the charReplace function but it will not allow a replace of one character with no character a delete.
New info. The BetaBrite sign displayed the same old garbled non-sense. If the above works, then you might try the below simple code with the serial monitor assuming the arduino tx is connected to the betabrite rx, grounds are connected, baud rates set, etc. If that works, then progress is being made.
Excellent test concept. Had to add the BetaBrite setup data before each print, so the 2 ms delay might need to be adjusted a bit. Tried increasing length up to 16 chars… Tried a few different iterations of delays in various places.
I can tell the if criteria is not being met because of the 1 second delay in print on the terminal monitor. Step 4: Convert all decimals to binary number using the division method above. Step 2: Divide the decimal numbers by 16 and write down the quotients and remainders starting from top to bottom. Note: Some numbers are represented using alphabetic characters in hexadecimal system.
Calculator School. Need some help? Enter String Value. What is a string? Why do you think that it needs conversion? What are you going to use the value for? It might be that this ends up as the recurring question on how to convert a numerical value to a string - and that you are trying to write your own conversion. If that is so then there are several options. As of January 15, , Site fix-up work has begun! Now do your part and report any bugs or deficiencies here. No guarantees, but if we don't report problems they won't get much of a chance to be fixed!
Use the wrong words, communicate the wrong concept. Happy that you answered my question. I want to be simple. I am developing braille system.
When 'A' is pressed in keyboard its transmitted via usart to microcontroller. The microcontroller receives it and has to display appropriate braille code for 'A' in led display. If i can convert character 'A' to ascii equivalent ie '65' i can get the particular values from the font array. I hoep you will replace the led's by motors sometime? Quote: I want to be simple.
Character always hold the numerical ascii equivalent of the given character. So, you can make use of it very clearly in your application.
What visovian hints at is often called a "lookup table. Since each Braille character consists of a pattern of six dots present or absent, each element in the table needs six bits. So using int s is a wee bit overkill normally 16 bits on AVRs. The datatype char usually 8 bits is more suitable. Further, according to Wikipedia the six dots in Braille are numbered left column first, top down, then right column top down.
So bit 5 could represent dot 1, bit 4 dot 2 etc. We now get:. Skip to main content.
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