Hi, i am trying to build an app for home control via Bluetooth with Arduino and Android
for the android part I am using app-inventor, pretty simple
I figured the way to send data from the android device, but I cant seem to find a way to receive data like from an DHT11 sensor can someone help with anything please?
Also I have another question, Is it possible to receive data from another sensor at the same time like from a photo-resistor and a temperature sensor ?
I figured the way to send data from the android device, but I cant seem to find a way to receive data like from an DHT11 sensor can someone help with anything please?
What data are you trying to receive? Is the Arduino sending "The temperature is a nice balmy seventytwo degrees"?
yes, I want to send the temperature from the arduino to the android device
but I cant find a way
via bluetooth obviously
yes, I want to send the temperature from the arduino to the android device
How are you getting, on the Arduino, data from the android device? "By bluetooth" is NOT the answer I'm looking for.
(That was a hint - post your code.)
this is what I need to know if its possible and if so, then how ?
I know how to set a pin HIGH or LOW from the android device , but How can I send data from the Arduino PIN to the ANDROID device , via bluetooth
what functions should I use ?
this is what I need to know if its possible and if so, then how ?
Of course it is possible.
I know how to set a pin HIGH or LOW from the android device
That implies that you know how to read what the android device has sent, and to make decisions based on that.
Reading from a temperature sensor is trivial. There are dozens of libraries, depending on the kind of temperature sensor you have. Each library comes with examples.
but How can I send data from the Arduino PIN to the ANDROID device , via bluetooth
what functions should I use ?
The ones that come from the same class as the ones that you use to read data from the android.
rulasibai:
what functions should I use ?
Serial.print(temperature);
That's all, the rest is just procedure. Since you have sent data from Android to Arduino, you have done the hard part and it would appear that all your problems are at the Android end. To fix them, I submit you should consider installing Bluetooth Terminal, thereby saving you the trouble of re-inventing the wheel. If you really need to get smarty farty with app inventor, leave it until you have proven the point with something a bit easier.
Whatever programme examples you have for your DHT sensor should be usable for sending the results over bluetooth without any change.
Ok I will give it a shot and share the code