Messages

1

TinyDuino Processors & TinyShields / Re: Bluetooth Module -- receiving garbage on serial port

« on: June 17, 2014, 12:53:36 AM »

Problem solved, thank you wymiata3! My Bluetooth serial communication is now up and running by switching to a baud rate of 9600.

Very misleading, considering the Using Bluetooth TinyShield page explicitly instructs:

By default, the Bluetooth TinyShield will power up at 57600 baud, so the TinyDuino processor needs to be configured at this baud rate in order for communications to work.

My board is a Rev2, for what it's worth. Seems that it powers up to a baud of 9600.

2

TinyDuino Processors & TinyShields / Bluetooth Module -- receiving garbage on serial port

« on: June 12, 2014, 08:43:42 PM »

Having some trouble with the Bluetooth module, despite it being significantly more straightforward than the BLE shield.

I am paired and connected between my TinyDuino Bluetooth shield and my Macbook. This shows up on my laptop, and I can connect through the Arduino IDE serial port. The TinyDuino receives my keystroke from the computer, as indicated by LED blinks. However, the "Hello World" I try to print from the TinyDuino in response comes back as nonsense.

Pitfalls that I've ruled out:

• Baud is initialized as 57600 within my code
• Power is coming from a LiPo battery capable of sourcing > 1 A
• Micro USB programmer module is detached from my shield stack

I've already tried on the same setup on a Windows machine, complete with an explicit Bluetooth 2.1 dongle and third party serial monitor. It came out to the same result. If I had to guess, I suspect some baud rate mismatch--though this seems hard to mess up with a simple "  Serial.begin(57600); " command.

Any tips on what to check next?

Cheers,
Matt