Topics

1

TinyDuino Processors & TinyShields / Longer mounting screws or alternate ways of mounting large stacks

« on: January 14, 2014, 12:45:16 PM »

I am building a TinyDuino stack that is currently 5 boards tall. I want to screw this onto a PCB onto which I have soldered other components. The screws that come with the tinyduino are too small to accommodate this - I need something at least 2.5 cm long. Down the line I will very likely want to add another board on (when I figure BTLE out - look at my other threads!).

Where can I buy longer screws? Measuring with a calliper, the screws that ship with the TinyDuino are 1.2mm in dia. But M1, M1.2 are really hard to find - I did quite a bit of searching online. Any suggestions on where I should look or alternate ways of mounting these?

2

TinyDuino Processors & TinyShields / Bluetooth low energy shield not working?

« on: December 18, 2013, 08:50:21 PM »

Hi,

I setup my BLE shield and uploaded the sample code from http://tiny-circuits.com/wp-content/uploads/2013/12/BGLib_stub_slave_rev2.zip onto the TinyDuino. The LED on it is flashing green about once every second, which according to the code means that it is advertising. However here starts my problem - none of my devices can see the BLE shield. I scanned for bluetooth devices using my laptop and samsung S4 phone - neither see it. I would have thought this should be pretty straight forward, but I am a BLE and Arduino novice.

To set this up, I stacked the TinyDuino, the BLE shield one on top of the other. I topped the stack off with a proto board where I connected a 3V supply between VBatt and GND. Prior to this I had uploaded the demo code onto the TinyDuino. The system is being powered by a 3V DC power supply.

Nikhil

3

TinyDuino Processors & TinyShields / USB for power and bluetooth

« on: December 18, 2013, 09:45:50 AM »

Hi,

It appears as if the bluetooth shield cannot work with the coin cells on the board. The most convenient other way to get power while developing, is to plug in a USB cable into a computer via the USB shield. So here is the question - can I plug the bluetooth shield and USB shield onto the Arduino and use the bluetooth shield for communication and the USB shield purely to draw power?

Nikhil

4

TinyDuino Processors & TinyShields / Battery recommendation for WiFi

« on: December 12, 2013, 02:25:59 PM »

Hi,

Looks like the WiFi TinyShield needs its own batteries. Now I know I maybe asking for the impossible - I am looking out for the small batteries with long battery life. I would appreciate it if somebody could provide me with some options so that I could trade off battery life with size.

Nikhil