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Hardware Serial: Arduino does not receive 
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Joined: Mon Aug 27, 2012 6:32 pm
Posts: 3
Hi all,

I've been playing around with my shield for a few days, and I've run into a strange problem. My Arduino does not receives data from the iPhone when using Hardware Serial.

I'll detail a few: I've got a simple program running that toggles LED if it receives some letters from the iPhone. When I use SoftSerial with pins 2-3, no problems, I can switch my LEDS on and off.
But if I want to use Hardware Serial on pins 0-1, I can only read data sent by the shield, but not send data from the iPhone to the shield. Seems a little strange to me, but I spent some time on it without any result. Looks like there's no connection between BLE112's Tx and Arduino's Rx.

Any tips ?


Wed Dec 19, 2012 5:45 pm
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Joined: Thu Aug 02, 2012 11:36 am
Posts: 166
Hello Paul,
are you using the hardware serial while the USB Cable is connected to your desktop or laptop ?
If yes, try to remove the cable and power your Arduino using a battery.

Try to send data again which will work.


Sat Dec 22, 2012 12:49 pm
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