Messages

331

TinyLily / Re: Use the Lithium Ion Polymer Battery - 3.7V 140mAh with TL

« on: October 15, 2015, 03:29:57 PM »

Is this one of our lithium batteries with a JST SH connector? The current TinyLily battery adapter has a much larger JST PH connector, so it's not compatible without some soldering. I can't find any examples of people soldering a battery on- people usually prefer to source their own battery with the JST PH connector. Let me know what other information you need.

332

TinyDuino Processors & TinyShields / Re: Send data from TinyDuino to processing sketch via Bluetooth

« on: October 15, 2015, 03:14:34 PM »

It's good that you have data going one way- what examples are you basing the Processing code from? Unfortunately I'm not familiar with handling serial coms in Processing. Let us know if it's still not working.

333

TinyDuino Processors & TinyShields / Re: FONA 808 and TinyDuino with Proto Board

« on: October 15, 2015, 03:10:07 PM »

You'll need a regulator plus level shifting for any output pins to the chip- if it's low speed SPI, that can be a resistor divider. Another option is finding a board with built in regulation and level shifting, like FONA and our accelerometer board have, which makes things a lot easier.

Sounds like an interesting project!

334

TinyDuino Processors & TinyShields / Re: Where to buy JST SH connectors in bulk?

« on: October 15, 2015, 02:36:14 PM »

That's it. They're available from China at a low cost- http://www.ebay.com/itm/20-SETS-Mini-Micro-SH-1-0-2-Pin-JST-Connector-with-Wires-Cables-100MM-/231580552094

I haven't tried these particular connectors, but they should be fine.

The housings/contacts are easy to find on digikey/mouser, but my Engineer PA-09 that do well on other small connectors are useless for these, so you probably need the real JST crimp tool to do more than a few.

335

User Projects / Code Examples / Re: How can I get time data from RTC board?

« on: October 14, 2015, 02:31:59 PM »

Sorry you had to wait for an answer- In what way have you not been successful? Under the RTC product page's tutorial tab, we have a link to our learn page at https://www.tiny-circuits.com/learn/tinyshield-rtc with information about the chipset, board, example code, etc. The example code has text output to the serial port, but you can take some of the code and adapt it to display on the TinyScreen. Let me know if this isn't working for you.

Thanks,
Ben

336

New Product Ideas / Re: How about a 170 Points Mini Breadboard adapter?

« on: October 08, 2015, 06:50:25 PM »

Really appreciate the amount of thought into this. I went through some similar designs- I wanted a skinny PDIP size over the breadboard area, but the design we eventually came up with is a 46x20 board that looks a bit like:

    ************         ************ TinyDuino Board
                   ++             ++
    ************         ************ TinyDuino Board
                   ++             ++
    ************         ************ TinyDuino Board
                   ++             ++                (Connector)
   -------------------------------------------- (PCB)
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |   (Pins)
[ =========================  Breadboard with inter-lock notch

So, both a top and bottom connector to have two board stacks. The board can be used to split stacks, soldering breakout, breadboard adapter, or for terminal blocks.

For breadboards it will unfortunately cover up a lot of the space(only leaving two rows on each side), so we'll probably have to pair it up with a medium size breadboard.

Board is ready to go, but we don't have a release date yet.

337

TinyDuino Processors & TinyShields / Re: Is TinyDuino able to recharge lithium-ion batteries up to 2000mAh?

« on: September 30, 2015, 03:17:07 PM »

Yes- the TinyDuino processor board actually uses the same charge IC as the Adafruit charger, with the same default 100mA charge rate- so theoretically about 20 hours to recharge. Unfortunately changing the charge rate requires changing an 0402 resistor, or hacking in a larger package/through hole resistor- let me know if you want more information on this.

Thanks,
Ben

338

TinyDuino Processors & TinyShields / Re: TinyCircuit - Interfacing to Bluetooth Mate Gold - Issues

« on: September 29, 2015, 03:51:10 PM »

Glad you got it working, thanks for posting- the lower 8MHz clock speed can cause interesting issues with the softwareSerial library. However it's unusual that 19200 works better than 9600- we'll keep this in mind over here.

339

TinyDuino Processors & TinyShields / Re: Conflict error with NRF8001_BLE_Example

« on: September 29, 2015, 03:47:06 PM »

This something that Nordic hasn't patched yet, but it's an easy fix- see https://github.com/opendroplet/nRF8001/commit/b475b27b3a31e204778e99826b8ceb951627a98d and let me know if you need help finding the lines.

340

TinyDuino Processors & TinyShields / Re: Max current of the lithium ion polymer battery?

« on: September 29, 2015, 03:43:50 PM »

Hi, the cells are rated for 10c- 1.5 amps. They should power projects with the NRF8001 and processor board for at least a day or so.

Ben

341

TinyDuino Processors & TinyShields / Re: TinyShield_NRF8001_BLE_Example + TinyScreen device conflict

« on: September 29, 2015, 03:35:37 PM »

Hi,

Both boards use SPI for data, but the NRF8001 uses a different bit order. You'll need to make sure it's correct before transferring data to the baord.

The smartwatch example on codebender at https://codebender.cc/sketch:91833 is set up to use both at the same time, so it's a good place to start. If you look at UART.h, you'll see calls to SPI.setBitOrder()- passing LSBFIRST at the beginning, MSBFIRST at the end. You'll need do this before/after calls to functions like lib_aci_send_data().

Let me know how this goes for you,
Ben

342

TinyLily / Re: analog reading

« on: September 29, 2015, 03:06:43 PM »

Hi,

Can you post your code? You should be seeing a range of 0 to 1023- with an open circuit, it should settle on a value in this range.

Thanks,
Ben

343

New Product Ideas / Re: Tinyduino Parallel Shields Board

« on: September 29, 2015, 03:02:07 PM »

Similar to the side-by-side shield, we have a back-to-back style breakout board that is just about ready for production, although we don't have a planned release date for it.

344

New Product Ideas / Re: some questions regarding tinyduino

« on: September 29, 2015, 02:53:53 PM »

TinyDuino is open source and software compatible with the Arduino Uno. We don't support any simulation software.

It can be connected to the Raspberry Pi through the USB shield.

Thanks,
Ben

345

TinyDuino Processors & TinyShields / Re: TinyShield_RTC set date problem with RTC Library Tests

« on: September 17, 2015, 02:32:05 PM »

Interesting, glad you at least have a solution for the serial stuff.

That sounds like a really useful project. With a 3Ah battery, 3 months looks like almost 1.5 mA average draw- should be doable with this hardware, depending on what the IR sensor is doing. Make sure your SD card library is putting the card to sleep- I've had better luck with sdfat library compared to the default SD lib. Let us know if you ever do a writeup about it.