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1  Using Arduino / General Electronics / Re: Will this circuit work for me? on: August 31, 2014, 04:49:35 pm
How should I know that if it has breakout board or not? Or what do you mean? I don't know if there is a hc module on that or not.
Quote
You don't have to use breakout boards VIN pin with 3.3v circuit.
What do you mean? if a board has only VIN, then I would put 3.3v on that. If a board has 3v3 and VIN, I would use only 3v3 instead.
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And you need put voltage LD33V's VIN pin at least 7 volts.
I tried 7805 regulator with 6v, and that worked as well, but that should not be. Can it kill the LD33V if I put 3.7v or 4.2v to that?
Here's the datasheet of that:
https://www.sparkfun.com/datasheets/Components/LD1117V33.pdf
2  Using Arduino / General Electronics / Will this circuit work for me? on: August 31, 2014, 01:50:20 pm
Hy everybody!

I'm not sure if I missed something important from the datasheets or am I missing a voltage regulator, a capacitor or something, so I just want to check this whole think with you. Every value I have found is maybe not correct, so check those too pls:
Samsung Galaxy Ace battery:
3.7v (it starts from 4.2v when fully-charged)
1350 mAh
I want to use this, and I think everything can work on 3.3v, except the JY-MCU bluetooth module. So the battery can be used for JY-MCU until the voltage decrease to 3.6v, after that I need to charge that. For the other devices I would use LD33V voltage regulator, a 10uF electrolit and a 10nF cheramic capacitor.

The other devices I mentioned:
They would get 3.3v via LD33v:
arduino lilypad:
40 mA
http://arduino.cc/en/Main/arduinoBoardLilyPad
wtv020-sd-16p:
3uA
http://letsmakerobots.com/files/WTV020_manual_V1.3.pdf
st7735r:
50 mA
http://www.adafruit.com/products/358
and one of these IMUs:
gy-88:
it contains:
        -MPU-6050
   4mA
   -HMC5883L
   100 uA
   -BMP085
   5uA
http://www.dx.com/p/gy-88-mpu-6050-hmc5883l-bmp085-10dof-flight-control-sensor-module-303056#.VANfrMV_uC8
the other imu option would be:
minIMU-9 v3:
6 mA
it contains:
     -L3GD20H
      5 mA
     -LSM303D
      300 uA
http://www.pololu.com/product/2468

This needs minimum 3.6v, it would be powered directly from the battery:
jy-mcu v1.04:
3.6v needs for input, the other lines can be 3.3v
30 mA
http://www.aliexpress.com/store/product/JY-MCU-v1-04-Master-slave-machine-bluetooth-serial-through-the-module-wireless-serial-ports-HC/511499_602197485.html

So will these be correct in a circuit? Won't I kill anything with this?
3  Using Arduino / General Electronics / Will these two circuits work for me? on: August 10, 2014, 06:09:52 pm
Hy all!

Will these circuits work for me?



The datasheets are:
https://www.sparkfun.com/products/11113
http://m5.img.dxcdn.com/CDDriver/CD/sku.NRF24L01_126467.pdf
http://www.dx.com/p/gy-88-mpu-6050-hmc5883l-bmp085-10dof-flight-control-sensor-module-303056
http://www.silabs.com/Support%20Documents/TechnicalDocs/CP2102-9.pdf

I was in hurry when I asked this, but please help me checking this. It would be important for me. Thanks.
4  Using Arduino / General Electronics / Re: How to create a cheap but good Motion Capture cloth? on: July 12, 2014, 10:55:01 am
Then it's not cloth...my native language is not english, i don't know what kind of word should I used for that.

They use video capture and image analysis, but this system is "closed" in a very small area and they want to record movement outside too...to be able to move upward or downward on stairs, etc.

Okay then, Raspberry Pi.

We thought that Accelerometers, Gyros, & Compasses would get almost the same accurate thing under open sky just like what we used in that closed room. I'm not sure that will be noiser, because of this video:
https://www.youtube.com/watch?v=W3uhUsQ8e9E

But correct me if I wrong.
5  Using Arduino / General Electronics / How to create a cheap but good Motion Capture cloth? on: July 12, 2014, 09:58:43 am
Hy everybody!

Our goal would be to use Ardunio, because we know that, and some kind of sensors.
The goal would be to create a motion capture cloth for record movements and process almost real-time to a PC. And to be able to record going up or down on the stairs or running under open sky.

1. idea: Use 1 Arduino Uno and connect 16 different MinIMU-9 v3 sensors (http://www.pololu.com/product/2468). Because of I2C we would use an analog multiplexer and resistors to get them work. The Arduino would use Bluetooth to send the measured values to a PC, where we would process the measurements with something. (3Ds max and/or with something). It seems to be good, but we try to find a cheaper but still good solution.

2. idea: Use 1 MinIMU-9 v3 sensor with a blend micro (http://redbearlab.com/blendmicro) what would work with the other 15 blend micros. The other 15 blend micros would use this, for example: (https://www.dx.com/p/gy-521-mpu6050-3-axis-acceleration-gyroscope-6dof-module-blue-154602#.U8EHlnJ_uC-). Our idea would be that we would compute an almost accurate position with MinIMU and the other, mentioned accelerometers/gyroscopes would compute the relative positions to the minIMU or to each other. The blend micros would communicate with each other and one of them would send the values to a PC (with bluetooth). The process of the measurements would be the previously mentioned 3ds max or something combo.

other idea: ?

We would like to find the best and cheap solution until the end of the week, because the shipping would take a lot of time. Can you help me find the "best", or some kind of better and cheap solution? Thanks a lot.
6  Topics / E-Textiles and Craft / Will this small circuit work? I would like to get a quick answer. on: September 23, 2013, 03:24:32 pm
Hy all!

Will this circuit work?
flex sensors: https://www.sparkfun.com/products/10264
https://www.sparkfun.com/products/8606
power supply: https://www.sparkfun.com/products/11259
7  Topics / E-Textiles and Craft / Re: Will this Arduino Lilypad circuit work? on: August 16, 2013, 02:49:58 pm
This topic is actual now too...
8  Topics / E-Textiles and Craft / Are there any layout planner software for planning circuits on textiles? on: August 12, 2013, 05:45:56 pm
Hy all!

I would make a circuit on a textile, without boards. Is there a program where I could import images as devices and I could set any pixel of that as a "point", and every two point could be connected like if I move one device image the line will always between two points (one point in A device, and another in B device). The best would be if I could blend the wires to be not to straight.

Is there a program like this?
9  Topics / E-Textiles and Craft / Will this Arduino Lilypad circuit work? on: August 06, 2013, 04:44:48 pm
Hy all!
Will this Arduino Lilypad circuit work?
10  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 06, 2012, 11:31:35 am
So if I understand you, I need only to change the wires and rewrite something in the code. Right? So I can order them. Right?
Yes or no? smiley
11  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 05, 2012, 05:53:55 pm
Well, I read a bit.
So maybe all of this will be work together. Only needs to manipulate things on the devices. Am I right? Somebody agree or disagree it please.
12  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 05, 2012, 05:08:24 pm
What do you mean "wiring change on one of the boards"?
13  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 05, 2012, 04:55:35 pm
Okay, but it can be done with some kind of program what i upload to lilypad, right?
14  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 05, 2012, 04:44:49 pm
Good to know.
What do you advice? Is there an accelometer or a compass what doesn't use SPI and can be used with these devices?
15  Using Arduino / Project Guidance / Re: Will these devices compatible with each other? on: November 05, 2012, 04:26:49 pm
Well, I use the mini sd module without rx and tx pins. I need that only for play a few files.
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