Understanding RS232 & RS485

Hey there! So, let’s dive into RS-232 and RS-485, which are both types of serial communication.
RS-232 is like your buddy for one-on-one connections between two devices, while RS-485 steps it up, allowing you to connect up to 32 devices in a neat end-to-end setup.
When it comes to speed, RS-232 can handle around 20 kilobits per second, but RS-485 is pretty impressive, reaching up to 10 megabits per second.
Just keep in mind that how far you’re trying to send signals can impact those speeds!.

When it comes to connecting devices, RS-232 and RS-485 have some key differences.
RS-232 is limited to about 15 meters, which is pretty short compared to RS-485’s impressive reach of up to 1200 meters.
This makes RS-485 the go-to choice when you’re looking for distance and reliability.
Even though RS-232 has its limitations, it’s still a favorite for many folks because it’s easy to use and has been around for ages.
On the flip side, RS-485 shines in environments like construction sites and factories, allowing for end-to-end bus configurations over long distances.
For instance, one cool project involved setting up an IoT system in an apartment using RS-485.
Stick around for the next post, where I’ll break down how to hook up an RS-485 module with Arduino without any hassle!.