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46  Using Arduino / Project Guidance / Re: convert spech into text by easyvr ! on: August 11, 2014, 08:58:25 pm
Yeah, communication doesn't seem to be the strong point of this conversation.
47  Using Arduino / Project Guidance / Re: convert spech into text by easyvr ! on: August 11, 2014, 01:19:12 pm
SD commands = Speaker dependent command = EasyVR will only understand the person who trained it.
The pre programmed words are  SI commands = Speaker independent = "Almost" anyone can control EasyVR with those words. So making a robot that everyone can verbally command is possible + SD commands for debug/secret/world domination commands.

@ HeshamNouby, You cannot just continually speak to EasyVR and have it print text. There must be a pause between each spoken word or phrase. This is needed so the EasyVR can tell that speaker is done speaking a command. Then the EasyVr goes back into listening mode.
Also it is important to train the EasyVR in the environment that it will be used in. Training in a small room then trying to get EasyVR to respond in a large room or outside is not easy because the room acoustics are different.
It is easiest to add your own SD commands using the EasyVR Commander free software from here .
Follow directions in this order:
1. Connect EasyVR to the UNO and change EasyVR jumper from HW to PC
3. Connect UNO to PC
4. Start EasyVR Commander
5. Follow instructions starting on page 55 of the manual in the link previously provided.
48  Using Arduino / Project Guidance / Re: convert spech into text by easyvr ! on: August 08, 2014, 10:47:06 am
EasyVR only understands the 32 pre-defined words that you train it to understand plus the 28 pre-programmed commands.
If you purchase the QuickT2SI software license then you can change the pre-programmed words to your liking.
So that gives you a total of 60 words it can understand.
If you can get an EasyVR example to work then it really isn't very hard to have it print text.
Partial example:
    group = 0;
    while (!easyvr.hasFinished());
    idx = easyvr.getCommand();
    if (idx >= 0) // 0 = Hello
      //Place your code here to print text on whatever device that you have not given info about
Of course no one but you knows the details of your project so it's hard to help any further.
49  Using Arduino / Project Guidance / Re: MPPT Solar controller - based on Tim Nolan's ideas on: August 03, 2014, 07:57:29 am
Your total solar array power is under 200W, at most from an MPPT controller a "maximum" gain of 30% can be seen.
Not to dissuade you from trying to build your own MPPT controller,  buying an additional 50W panel would give you a "constant" 25+% gain over your current setup.
MPPT is fine for large arrays greater than 1000W, then the price of the controller and it's real world gains can be more reasonable compared to the price of an additional  25% more panels.
Same with a tracking system, it's only economically efficient if the solar array is at a size where the cost for the % of gain from tracking is less then the cost of additional panels to achieve that same % of gain.
Have to keep in mind that "quality" panels need almost zero maintenance over their 20+ years of operation, MPPT controllers and tracking systems will need repair/replacement before 20 years, that expense needs to be considered when designing a solar setup.
For your setup manually keeping the panels facing the sun at the correct angle will allow you to harvest more energy then keeping them stationary and using an MPPT controller.

50  Using Arduino / General Electronics / Re: Waveform Generation on: August 01, 2014, 11:46:46 am
Also you need a 15M pot. for that circuit. Have one hanging around? If not then AllElectronics sells them for $0.75. Shipping starts at $7.00 though, so might as well throw a few more things in the cart if you go that route.
Anyone know where those 15M pots. can be bought for a lesser price including shipping?

51  Using Arduino / Programming Questions / Re: Set time with one button on DS1307 on: July 15, 2014, 08:43:37 am
To see if it is your module or if it is your code you can try this sketch,  set the time through serial monitor as directions state, then send the command Q2 it will dump the DS1307 memory in the monitor.
52  Using Arduino / Audio / Re: Need help determining which speaker is louder on: July 13, 2014, 07:16:55 am
I have used those micro round speakers in your first link, they are not well suited for music they have a "tinny" sound.
Much better in a situation for sound effects, like in a toy.
53  Using Arduino / Programming Questions / Re: Set time with one button on DS1307 on: July 11, 2014, 06:14:23 am
Could you please post your full sketch.
zero is?


54  Using Arduino / Programming Questions / Re: Set time with one button on DS1307 on: July 10, 2014, 06:17:50 am
For doing an action depending on the duration of a button press Nick Gammons SwitchManager library works well. It is the last article on that page.
55  Using Arduino / Programming Questions / Re: Voltage measurement on: July 08, 2014, 10:31:31 am
how do you change a sketch's name ?
Easy way is while having your sketch open use the "Save as" function of the Arduino IDE, Ctrl + Shift + S.
56  Using Arduino / Project Guidance / Re: charging using a home made generator on: July 02, 2014, 01:07:02 pm
You need an efficient boost/buck converter with a low quiescent current.
A cheap one from e-bay this one is about 18mA which is a good percentage of what you'll be generating.
I made a turbine using 4 x PC fans, in a decent wind it would generate enough power to run 1 x PC fan at a little more than half speed. Not very efficient but it worked. Much better at charging 2 x AA batteries, then using a joule thief to power a 1W LED.
Used a 5 gallon bucket for the head, rope tied to top hole and a tree branch, another rope tied to bottom hole and a concrete block on the ground.
57  Using Arduino / Project Guidance / Re: Reducing DC voltage for a project on: July 02, 2014, 06:34:18 am
This high power Buck Converter works well for powering 19V laptops from 24V supply.
Not to expensive at $7.99 w/free shipping.
58  Using Arduino / General Electronics / Re: Programming Pro Mini using CP2102 module on: June 27, 2014, 06:11:15 am
Wimpy way?
So what would you deem the manly way of doing this? Smacking the rest with a hammer?  smiley-lol
59  Using Arduino / Microcontrollers / Re: Is this "too good to be true"? on: June 27, 2014, 05:53:32 am
Here's where I get my clone Nanos $5.85 w/shipping  and Pro Minis $2.59 w/shipping
Never have had a problem with any ordered from that seller.
60  Using Arduino / General Electronics / Re: Programming Pro Mini using CP2102 module on: June 27, 2014, 05:42:00 am
Along with doing what Paul__B stated.
When uploading the sketch try holding the reset on the pro mini , after your sketch has compiled and as soon as the IDE says uploading releasing the pro mini reset button.
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