BluetoothClient how do you send a character followed by a byte?

[ABG]

Here are some code sample to study, with various pieces you might combine:

Bluetooth HC-06. Arduino. Send. Receive. Send text file. Multitouch. Image

26.- App sends text. readStringUntil. readString. p9A1_bluetooth_textoi.aia (2.2 KB) [bluetooth_enviartexto1] 1.- readStringUntil char end_char = '\n'; String texto; void setup() { Serial.begin(9600); } void loop() { if(Serial.available()) { texto = Serial.readStringUntil(end_char); Serial.println(texto); } } ooooooooooooooOOOOOoooooooooooooo 2.- readString String texto; void setup() { Serial.begin(9600); Serial.setTimeout(100); } void loop() { if(Serial.available())…

Bluetooth HC-06. Arduino. Send. Receive. Send text file. Multitouch. Image

27.- App sends two values ​​separated by commas. Arduino adds them up and returns the sum. p40i_bluetooth_deslizador.aia (3.5 KB) [bluetooth_deslizador12] App sends two comma separated values ​​created by two Sliders. 70.3,60.4 Arduino receives those values, separates them by comma, and adds them up. Using Serial.println(addition) returns the sum 130.70 [bluetoothreadstring] String texto; String a ; String b; float suma = 0.0; void setup() { Serial.begin(9600); Serial.setTimeout(…

(You would be wise to read that whole thread for its many samples.)