How do you compress ASCII strings into fewer bytes?

I’m working with an embedded device with a unique protocol that sends messages to other devices and I’m making an application that parses the sent packets. Each packet carries 8 bytes. The protocol is defined as where first byte is header and remaining 7 bytes is the data.

How can I make ascii in cmd?

My codes:

How to detect client character encoding?

I programmed a telnet server using C as programming language but I have a problem to send characters with emphases (é, è, à …). The character encoding is different between the telnet clients (windows, linux, putty, …).

Why was the grave but not the acute accent included in ASCII?

While looking at the Unicode properties (code point, script, block, UTF-8 and UTF-16 encoding, etc.) of some characters, I stumbled upon major differences between ` (“GRAVE ACCENT”) and ´ (“ACUTE ACCENT”):

Should Latin-1 be used over UTF-8 when it comes to database configuration?

We are using MySQL at the company I work for, and we build both client-facing and internal applications using Ruby on Rails.

Should Latin-1 be used over UTF-8 when it comes to database configuration?

We are using MySQL at the company I work for, and we build both client-facing and internal applications using Ruby on Rails.

How are ASCII code associations actually stored and retrieved?

I was reading about compilers and was given an example of creating a basic compiler that recognizes escape sequences without referencing ASCII.