Show Posts
1
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:
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
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