Questioning the Ubiquitous Serial.begin(115200) in Arduino Programming
By
iamflimflam1
Front-window bakery material. Catches the eye, delivers the goods.
Summary
The article investigates the common Arduino programming practice of using Serial.begin(115200) and questions its actual necessity. The author discovered through audio streaming tests that the baud rate setting doesn't actually affect data transfer rates as expected. The piece examines why this specific baud rate became ubiquitous in Arduino projects despite potentially being unnecessary, and explores the technical reality behind serial communication in embedded systems.
Key quotes
· 3 pulledThis line of code is everywhere - a quick search on GitHub finds over 450,000 instances of it.
I was streaming audio from the board and noticed that the rate I was receiving data at bore no relation to the baud rate I was setting.
This matches exactly what I put in the Serial.begin but the actual data transfer didn't correspond to that setting.
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