Serial.Read and Serial.available difference - Arduino Forum
Feb 2, 2022 · Serial.available is used to check if there is anything available to be read. Serial.read reads the next byte, or returns -1 if there is nothing available. Normally you would code as …
Understanding Serial.available () - Programming - Arduino Forum
May 7, 2018 · Serial.available () can return -1 if no data available and values from 0 to 255.
Serial.read () and Serial.available () are working not ... - Arduino …
Nov 16, 2021 · Hello, community. I had an idea to use Serial I/O connection for communication between PC and Arduino Due in a way that from the computer I can send commands which …
Serial.available & read doing two different things on ... - Arduino …
Oct 11, 2018 · Robin2's Serial Input Basics was good intro on communicating with the Arduino, but one thing that I'm still confused about is the Serial.available() and read() functions. Like the …
while (!Serial.available ()) - Programming - Arduino Forum
Apr 5, 2017 · Hi I use while (!Serial.available ()) to wait for serial input at the start of a sketch. So I can configure all my stuff before I hit the key and start the program I would like to do this in the …
Serial.available () useful? - Programming - Arduino Forum
Dec 4, 2021 · Is there a processing overhead with Serial.read () compared with Serial.available ()? I ask because @potzli 's second method always calls Serial.read () regardless of whether …
BT.Serial.available () always returns 0 - Arduino Forum
May 20, 2022 · I have set up 2 arduino unos with HC-05 bluetooth modules with a simple circuit to get a button on one board to turn the other board's LED on. The first board (with the module …
Serial.Available () doesn't work. - Programming - Arduino Forum
May 20, 2017 · Very much appreciated. Topic Replies Views Activity Using the serial port of the arduino pro mini with c# Programming 12 2415 May 5, 2021 Problem with the Serial …
Serial.available () and Serial.read () to control LED - Arduino Forum
Oct 4, 2018 · does anyone can help me with my code? i want to control a LED by sending a character '5' from the serial monitor to turn it on flashing light, until i send another character …
difference between Serial.available ()>0 and just ... - Arduino Forum
Sep 4, 2017 · why do I sometimes see the >0 and sometimes I don't in code examples?