App Inventor --> Bluetooth --> Arduino... Sending inappropriate data?

[dbj0729]

Hello!

I am new to App Inventor and I got stuck with a problem when I try to send a simple TEXT FROM APP to ARDUINO via BLUETOOTH.

It does not send the text 'a' nor 'b', but rather it sends other symbol of which I don't know as shown below:

HERE IS THE CODE for ARDUINO (a very simple code as it is)

and here is for the APP INVENTOR

and the RESULT from ARUIDNO Serial Monitor:

I googled it for help, but couldn't find it so I write this to seriously seek for support.

Thank you so much for reading and helping

[Juan_Antonio]

Is the Serial Monitor in 9600?

Here examples:

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

1.- App sends simple char. Arduino on-off LED12 and LED13. p9A0i_bluetooth_caracter.aia (2.4 KB) [bt_4] [bt_3] // Juan A. Villalpando // http://kio4.com/appinventor/9A0_Resumen_Bluetooth.htm #define Pin12 12 #define Pin13 13 char caracter; void setup() { Serial.begin(9600); pinMode(Pin12, OUTPUT); pinMode(Pin13, OUTPUT); } void loop() { if(Serial.available()) { caracter = Serial.read(); if(caracter == 'a'){ digitalWrite(Pin12, HIGH);} if(caracter == 'b'){ digi…

[ABG]

Have you tried sending your 'a' and 'b' text using an off the shelf BlueTooth terminal program from the Play Store ?