Receiving JSON data from esp32

[Juan_Antonio]

Notice how the information is sent and received in this example:

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

36.- Ultrasound SR04 sends distance to App by Bluetooth. pA0_Bluetooth_Arduino_Ultrasonido.aia (3.0 KB) Arduino Library Ultrasonic.zip: http://kio4.com/appinventor/9A0_Resumen_Bluetooth.htm#ultrasonido [bluetooth_basico37] #include <Ultrasonic.h> Ultrasonic ultrasonic(12,13); // (Trig PIN, Echo PIN) void setup() { Serial.begin(9600); } void loop(){ Serial.println(ultrasonic.Ranging(CM)); delay(500); } [bluetooth_basico38]