Messages

46

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

« on: February 06, 2014, 06:13:48 PM »

Unfortunately McMaster Carr doesn't sell screws or nuts that go down this small.

47

TinyDuino Processors & TinyShields / Re: BT LE example does not even compile

« on: February 06, 2014, 06:13:02 PM »

Hi Heliboy,

It sounds like some of the BGLib files are not present in your sketch directory, if you scroll down to the bottom of the page at:  http://tiny-circuits.com/learn/using-the-bluetooth-low-energy-tinyshield/ you see a link to download a zip file with the sketch along the BGLib files.  Can you verify that you've downloaded all of that and are still having issues?

Thanks,

Ken
TinyCircuits

48

TinyDuino Processors & TinyShields / Re: BLE reflashing

« on: February 03, 2014, 11:51:03 PM »

Hi Josh,

Yes, you can reflash the BLE112 module, but you'll need the TI CC Debugger to do it.  The back of the BLE TinyShield has 6 pins on it which are the programming connection, you'll need to wire these over to the CC Debugger connector (the schematic for the BLE TinyShield is on the website to see what the pins are) - this is how we load in the initial program into the modules.

Thanks,

Ken
TinyCircuits

49

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

« on: February 03, 2014, 11:48:07 PM »

I've done some searching online, as you guys say these size screws are pretty rare, but I did find an option for longer mounting options.  I ordered some 00-90 threaded rod and 00-90 nuts from JI Morris (http://www.jimorrisco.com/), which works well.  The threaded rod is 12 inches long, so you can cut it down for your project.  The only problem is that it's really pricey ($18 for one 12 inch rod), but so far it's the best I've found. 

Thanks,

Ken
TinyCircuits

50

TinyDuino Processors & TinyShields / Re: Bluetooth Tutorial

« on: February 03, 2014, 09:29:10 PM »

HI Fatwhale,

Sorry for the delay in getting back with you.  In order to communicate with the BLE device, you need an app that is also capable of communicating with the BLE module, this isn't the standard COM port that is used in Windows.  I haven't yet done this in Windows, however there are several examples how to do this with iPhones. 

Are you sure this is a BLE TinyShield and not just a standard Bluetooth TinyShield, which would explain why it was discovered with a COM Port number?  If you just need it to communicate with a Windows PC, I'd highly recommend just using the standard Bluetooth module, if needed we can swap this out for you.

Thanks,

Ken
TinyCircuits

51

TinyDuino Processors & TinyShields / Re: USB for power and bluetooth

« on: January 19, 2014, 10:25:36 PM »

Hi Nikhil,

Unfortunately the standard BT shield uses the same hardware UART pins as the USB TinyShield, so they are not able to be used at the same time.

Ken
TinyCircuits

52

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

« on: January 19, 2014, 10:24:14 PM »

One of the big issues is that a BT Low Energy devices are not discoverable with the standard BT tools on most systems, namely iOS.  You need a third party utility to discover these sorts of devices, see the link below at Bluegiga (the manufacturer of the BLE112 module) about how to discover these:

https://bluegiga.zendesk.com/entries/23007217--TROUBLESHOOTING-Unable-to-discover-BLE112-in-iOS-device-s-Bluetooth-Settings-page

We have confirmed that the code on the learn site does work with an iPhone 5 to be able to discover it, using one of the apps shown on this page.  We also have a sample based on Jeff Rowbergs scanner app to allow the Bluetooth LE TinyShield to listen and discover other devices.  That being said I am sorry about the lack of code and docs for this board, we do plan on creating some additional content / sample apps.  If anyone is interested in doing some of this work (like iPhone sample apps / Arduino sample code), we will pay for the effort, just contact me at kburns@tiny-circuits.com to discuss.

Thanks,

Ken
TinyCircuits

53

TinyDuino Processors & TinyShields / Re: Wifi and microSD Shield

« on: January 19, 2014, 10:16:39 PM »

I greatly apologize for missing your messages on the forum, for some reason the forum hasn’t emailed me updates when messages are posted, I’m very sorry again.

I’ve done some testing here, and it looks to be a RAM issue, both the CC3000 and the SD library use quite a bit of RAM, and that’s what’s causing it to crash when both are on.  All of the   Serial.println() messages are being stored in RAM, which is eating up most of it, if you eliminate these or move the strings to flash, you’ll find that the system is able to run.

To change these to Flash, put F( ) around the string in Serial.println().  For example:

Serial.print(F("Initializing SD card...\n"));

This will prevent this from eating up all the RAM. 

Let me know how that works for you, sorry again for missing your messages on the forums.

Thanks,

Ken Burns
TinyCircuits

54

TinyLily / Re: short circuit on I2C during upload?

« on: December 15, 2013, 03:41:35 PM »

Hi eric,

Not sure why this would be happening, if only the I2C is attached I'm not sure how this could be happening.  Can you post a schematic / wiring diagram of how you have this connected?

Thanks,

Ken Burns
TinyCircuits

55

New Product Ideas / Re: Alternate versions of peripherals using different pins

« on: December 15, 2013, 03:39:43 PM »

Actually the BLE board doesn't use pins IO5 and 6, are you thinking of a different board?  The BLE Rev 1 board just uses pins 0 and 1, and the BLE Rev 2 uses 3 and 4, so you should not have a problem running the LED shield with a BLE board.

Thanks,

Ken Burns
TinyCircuits

56

General Discussion / Re: How do the Micro SD shield and Led pin 13 interact? Do they interfere?

« on: December 15, 2013, 03:37:27 PM »

The SD card will be fine, since SPI is enable the digitalWrite() call will not toggle the pin.

Thanks,

Ken
TinyCircuits

57

TinyDuino Processors & TinyShields / Re: Pinout error on Proto2?

« on: December 15, 2013, 03:33:54 PM »

Hi Alf,

Yes, you are right, not sure how we didn't catch this earlier.  It's actually the silkscreen being labelled, Vcc and Vbatt are swapped on the labelling.   Later versions of the Proto2 board were relaid out, and are marked correctly. 

Thanks for catching this!

Ken
TinyCircuits

58

TinyDuino Processors & TinyShields / Re: Battery recommendation for WiFi

« on: December 15, 2013, 03:32:21 PM »

HI Nikhil,

True, a number of the higher powered board (like the WiFi, GPS, etc), draw too much power to be run off a coin cell battery.  Alkaline batteries can certainly be used (like AAA or AA's), Adafruit and Sparkfun also have a number of small rechargeable Li-Ion packs that can be used with the TinyDuino that would be able to power the WiFi. 

Thanks,

Ken
TinyCircuits

59

TinyDuino Processors & TinyShields / Re: Wifi and microSD Shield

« on: December 15, 2013, 03:29:26 PM »

Hi Speedy,

This should be possible to use both of these at once, they both use the SPI port, but have different chip selects.  Can you supply the Arduino sketch that you are using and we can try it out here to see what the issue is?  You can post it to the forum or email to us at info@tiny-circuits.com.

Thanks,

Ken Burns
TinyCircuits

60

TinyDuino Processors & TinyShields / Re: Problem with initial use of Bluetooth Low Energy TinyShield

« on: December 15, 2013, 03:27:31 PM »

Sorry for the lag in the docs, we've updated the Learn Page http://tiny-circuits.com/learn/using-the-bluetooth-low-energy-tinyshield/ with the changes needed for the Rev 2 board, please let me know if you continue to have problems after running this version. 

Thanks,

Ken
TinyCircuits