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Topic: Bluetooth issues (Read 837 times) previous topic - next topic


Hi, I bought an bluetooth module from dealextreme http://www.dealextreme.com/p/wireless-bluetooth-rs232-ttl-transceiver-module-80711
I conected the voltage divisor to transform the 5V signal to 3.3 in the input of the bluetooth. It seems to work at the begining, when i wrote AT it responds OK, but 5 minutes later it stops. I try to reset de module but nothing happens, I tried to use another bluetooth but the problem is the same. How can I check if the arduino is sending a serial signal?
PD: There's no good english teachers in my country, I'm sorry

Thanks for reading


It may be the case that the Bluetooth module goes to sleep as Bluetooth is discoverable for some seconds and then goes to sleep if there is no further communication/utilisation.
also in that case you need to check the instruction booklet.
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