Data variable not showing in android app

[Adinda_Piliang]

Hello, I made a MAX31855/MAX6675 temperature monitoring project with the HC-05 Bluetooth module connection, but the monitoring data display does not appear in the MIT app inverter android application. can anyone explain which part is wrong?

program arduino:

and this is the main problem:

[Juan_Antonio]

Check this example:

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

35.- Arduino sends two random numbers with decimals, separated by commas. pA0_Bluetooth_Arduino_envia.aia (10.7 KB) float temperature = 0.0; float humidity = 0.0; String tempera_humidity; void setup() { Serial.begin(9600); } void loop() { temperature = random(20, 40) * 5.555; humidity = random(50, 95) * 3.333; tempera_humidity = String(temperature, 3) + "," + String(humidity, 3); Serial.println(tempera_humidity); delay(1000); } [bluetooth_basico34] [bluetooth_basico36]