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Messages - TinyCircuits

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31
TinyDuino / Re: Power consumption in various sleep modes
« on: October 07, 2014, 11:46:51 PM »
The power consumption of the TinyDuino processor board is pretty much exactly as called out in the datasheet for the Atmel ATmega328p, so the datasheet is the best place to calculate the power draw based on the peripherals that are enabled and the power mode being used.

Thanks,

Ken
TinyCircuits

32
TinyDuino / Re: flat led for tiny duino.
« on: October 07, 2014, 11:44:26 PM »
A good option for this would be a neopixel, which is a single chip smart tricolor LED.  Adafruit has these:

http://www.adafruit.com/products/1260

Thanks,

Ken
TinyCircuits

33
TinyDuino / Re: About the analog joystick on the new joystick tinyshield
« on: October 07, 2014, 11:42:25 PM »
Thanks!  Here's a link to the mini joystick:

http://www.digikey.com/product-detail/en/254SA104B50B/254SA104B50B-ND/1755924

Ken
TinyCircuits

34
TinyDuino / Re: Having trouble with using WIFI and GPS same time
« on: October 02, 2014, 10:10:45 PM »
Sorry that you're having problems.  It looks like this is related to the wake pulse of the GPS module which puts it to sleep when you init the cc3000 WiFi.  You can indeed use both modules at the same time, try to change the code in your setup to this instead:

  pinMode(GPS_SYSONPin, INPUT);
  pinMode(GPS_ONOFFPin, OUTPUT);
  digitalWrite( GPS_ONOFFPin, LOW );   
  delay(5);
  if( digitalRead( GPS_SYSONPin ) == HIGH )
  {
     // Need to wake the module
    digitalWrite( GPS_ONOFFPin, HIGH );
    delay(5);
    digitalWrite( GPS_ONOFFPin, LOW );   
    delay(5);   
  }

Thanks,

Ken
TinyCircuits

35
TinyDuino / Re: USB Shield died
« on: September 29, 2014, 08:45:46 PM »
Please contact us at info@tiny-circuits.com and we can discus getting a replacement for this.

Thanks,

Ken
TinyCircuits

36
TinyDuino / Re: TinyDuino with NRF24L01 module
« on: September 29, 2014, 08:44:59 PM »
The CSN and CE pins can be connected to any digital output from the TinyDuino processor, so you can definitely hook this up to a TinyDuino.

Thanks,

Ken
TinyCircuits

37
TinyDuino / Re: MISO, MOSI and SCK signals, which shields
« on: September 29, 2014, 08:44:14 PM »
MISO, MOSI, SCK are only available on Proto1 or on the Proto Terminal Block board (which can be used without the terminal blocks if size is an issue.

CSN and CE can be connected to any digital output, so you can definitely hook this up using Proto1.

Thanks,

Ken
TinyCircuits

38
TinyDuino / Re: Unable to get 3.3V on Proto Board
« on: September 29, 2014, 08:40:11 PM »
I agree that it is confusing, Vcc is the power rail that should be used for powering external peripherals.  The problem is that generating 3.3V from the coin cell is inefficient and will cause it to drain faster.

You can using a low dropout linear regulator (LDO) on the Vcc rail to generate a safe voltage if you are using both the USB and a coin cell battery.  As you mention, a coin cell battery is below 3.3V (typically the are 3.0V nominal), so the output voltage from the LDO will be the input voltage minus the dropout voltage, and you can get LDO's with under 0.1V dropout voltage.  If you external device needs more voltage than this, you'll need to use a higher voltage battery or power supply (like a Li-Ion battery pack).

The power modes are described in more detail at the following link:

https://tiny-circuits.com/tinyduino_overview

I hope that helps explain it better!

Thanks,

Ken
TinyCircuits

39
New Product Ideas / Re: Double Sided Connector for TinyShield Proto Board
« on: September 04, 2014, 05:05:31 PM »
You should check out the Proto Terminal Block TinyShield which has a double sided connector, and can be used without the terminal blocks to basically do exactly this, and it's very easy to get access to the signals.

https://tiny-circuits.com/tiny-shield-proto-terminal-blocks.html

Ken

40
General Discussion / Re: How much is the new Audio TinyShield?
« on: September 04, 2014, 05:00:56 PM »
Hi Dwaine,

Thanks - it's available now on the main site for $19.95.  10% off if you get it this week. 

https://tiny-circuits.com/tiny-shield-audio.html

41
TinyDuino / Re: On/Off Switch
« on: July 14, 2014, 02:18:20 PM »
Right now, there really isn't a good way to add a switch if you're using the coin cell, you pretty much have to remove the coin cell battery to disconnect this.

We are working on a new rev of the processor board and will have internal prototypes in the August timeframe, that removes the reset switch and uses a slide power switch instead.  Keep you eyes out and we'll make an announcement when this becomes available.

Thanks,

Ken

42
TinyDuino / Re: Looking for intro docs / examples...
« on: July 14, 2014, 02:16:09 PM »
Hi Pat,

Sorry for the lack of documentation on the site, the new design ended up getting launched a bit early before the content was all up, we're getting it all up in the next day or two.  I've just posted a number of the tutorials to the Community site under Tutorials, but we should get the main site all done very soon. 

This is indeed an active project and we're coming out with a number of new products in the next two months, which is one of the reasons we got the new site up since our old site had some major issues on the backend for supporting many products. 

Thanks again for your patience - if you have any immediate questions, please send me an email at kburns@tiny-circuits.com.

Thanks,

Ken

43
TinyDuino / Re: Unable to get 3.3V on Proto Board
« on: February 06, 2014, 06:17:10 PM »
Hi Manoj,

Sorry for the confusion - the 3.3V rail is there for legacy support and not directly generated from the TinyDuino board.  Instead, Vcc is the main power rail that you can use to power external devices, this is automatically selected between the +5V rail (such as when the USB is present), or VBatt when that is present.  If you are running a coin cell, we'd recommend powering the other device using the Vcc or Vbatt pin.  Note: If you are powering off the Vcc pin, if you plug in USB this pin will go up to 5V, so this may be an issue based on what you are connecting to.  If so, just stick with using Vbatt.

Regards,

Ken
TinyCircuits


44
Unfortunately McMaster Carr doesn't sell screws or nuts that go down this small.

45
TinyDuino / 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

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