I made a sample program showing how to encode a character to UTF8 and how to decode it. The program will use the Web component and the asynchronous extension hence.
UTF8.aia (24.4 KB)
Hello Patryk
Encode a character to UTF8 from what? App Inventor lives and breaths UTF8, so what would need to be converted to UTF8 that isn't already handled automatically?
A string of data from an external device downloaded to the application via bluetooth. The device sends a long configuration string to the application. There are both text and numeric values in this string. AppInventor only distinguishes between text and numerical data in the bluetooth component. Read / send text and read / send byte. But the device sends it all together. The decoding of everything to a readable form only takes place on the application side. The decoded information is saved in the dictionary as a key and value. The values are stored in hexadecimal form. For example, the word AppInventor is 417070496E76656E746F72. This way, the configuration is also saved to the file as a backup and sent back to the device. Someone once needed such conversion Ascii <=> Number and someone solved it by adding the string ascii to the text variable and wanting to convert ascii to a number, the positions of this character were taken. It is similar here except that not ascii but utf8.
The third and final method is extension 
:
3 Likes
THANK YOUUUU very much!!!!!
perfect exactly what i was looking for 
А с какой стороны преобразование в текст?
The methods presented here have AIA projects. You can download and test them.
1 Like