TTL serial would be an easier option for microcontroller pairing since it operates nicely between a microcontroller voltage supply range. The minimum and maximum voltages of RS-232 signals are +/-13V, while TTL signals are 0 to 3.3V/5V. RS232 more extreme voltages help make it less susceptible to noise, interference, and degradation. When working with Serial Communication, you’ll bound to come across the term RS-232. Moving on, we’ll be taking a look at two of the more popular hardware implementations of serial: TTL and RS-232. We’ve now understood about serial communication and what it does. Hardware Implementations of Serial Communication With this, it’s still possible for serial to be faster!Īlso, with microcontrollers like Arduino using serial communication, it’s way more applicable to modern-day usages! Though parallel communication may seem like the better choice with its higher data transfer rate, Serial communication supports full-duplex, allowing for simultaneous transmission and reception of data. Serial Communication is better, here’s why! Is serial communication or parallel communication better? Parallel: Sending data in multiple bits at a time.The main difference between serial communication and parallel communication would be: Higher cost and space needed to accomodate more wires Less cost and space needed as it uses fewer wires Not suitable for long distance transmission

Uses more wires, may result in signal distortion

Here’s a quick comparison to help you get a better understanding of both worlds:īits are sent bit by bit at one clock pulse We’ve now understood more about Serial, but do you know there’s another communication method? Serial communication is one way, but the other would be through parallel communication.

Both the sender and receiver can transmit and receive at the same time.

If the sender transmits, the receiver can accept but cannot send, vice versa.

Both the sender and receiver are active but not at a time.

One way communication, only the sender or receiver is active at a time.

Arduino fast serial read