Arduino IDE 1.8.19 Serial RX Buffer Modified Problem?

Projects Programming
1

Hello. How can I change the RX buffer in the 1.8.19 IDE for Arduino Uno? Previously, I could easily do this via hardwareserial.h, but after the update, the 1.8.19 IDE ignores the changes made on hardwareserial.h.

2

not really, but you have modified the file, but now the original is being used again,

But just a few days ago someone ran into some issues, and by chance i had a good look, and within hardwareserial.h.

#if !defined(SERIAL_RX_BUFFER_SIZE)
#if ((RAMEND - RAMSTART) < 1023)
#define SERIAL_RX_BUFFER_SIZE 16
#else
#define SERIAL_RX_BUFFER_SIZE 64
#endif

it only sets the SERIAL_RX_BUFFER_SIZE only if it hasn't been defined yet, so the easiest solution is to let one of the first lines in you sketch be

#define SERIAL_RX_BUFFER_SIZE 64

with the size that you want it to be.
The method you've used previously obviously is not the best.

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