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91  Forum 2005-2010 (read only) / Troubleshooting / Re: RF modules can't send numbers with virutalWire on: January 09, 2011, 10:18:10 am
All arrays are values between 0 and 1023, only this. I want to receive and transform this values in int numbers to control, for example, servos and led's brightness...

smiley
92  Forum 2005-2010 (read only) / Troubleshooting / Re: RF modules can't send numbers with virutalWire on: January 09, 2011, 09:42:16 am
smiley-sad didn't understand.

I tried some codes that i found but got nothing...

I'm not good with bytes and this things, if I could make a function to send 16 variables of a array and recognize every single one at the receiver, would be soo good.
93  Forum 2005-2010 (read only) / Troubleshooting / RF modules can't send numbers with virutalWire on: January 09, 2011, 08:44:41 am
I'm doing this:

int msg = 1000;       // test number
vw_send(msg);
vw_wait_tx();

But i'm getting this compiling error:
Invalid conversion from 'int' to 'uint8_t*'

Can't send numbers, only text!

Can somebody help me?
94  Forum 2005-2010 (read only) / Troubleshooting / Re: H-bridge and voltage regulator problems on: August 20, 2010, 11:09:02 am
Well, I tried with my capacitor (the size of the 9v battery, 4700uf) and the motors tries do start, now with more power, but they don't run. Maybe this is the problem...

smiley-sad
95  Forum 2005-2010 (read only) / Troubleshooting / Re: H-bridge and voltage regulator problems on: August 20, 2010, 08:48:40 am
Hi again. I tried here powering the arduino with a 9v battery, and to the motor, another 9v battery, but with 5v regulador, and the motors worked pretty good. But my project need to have 1 battery, not 2, I discovered that the problem is that the motor and the arduino can't me used with the same source power.
Does someone knows how to fix it and use only 1 9v battery?

Thanks!
96  Forum 2005-2010 (read only) / Troubleshooting / Re: H-bridge and voltage regulator problems on: August 09, 2010, 06:47:34 pm
I tried regulating the voltage directly from the 9v battery, without arduino, only for testing, and the motor moves!
Could the arduino be "sucking" the current from the battery and with this, making impossible to the motor runs? (sorry, I don't understand much about this).

Thanks!
97  Forum 2005-2010 (read only) / Troubleshooting / Re: H-bridge and voltage regulator problems on: August 09, 2010, 04:49:09 pm
Thanks by the help. My project needs to have a 9v battery, cause many AA batteries wouldn't fit inside the body of my robot. By the way, I'm gonna think in something to do. If somebody have an idea, please talk to me  smiley
98  Forum 2005-2010 (read only) / Troubleshooting / H-bridge and voltage regulator problems on: August 09, 2010, 04:29:18 pm
Hi, I'm using a L293D H-bridge to control two 3v motors, and controlling this with arduino. To power the motors I'm using a Lm7805 5v voltage regulator to power the motors (them work good in 5v). The problem is that when I use the h-bridge with an external power, it works really good, but when I power it with the same 9v battery used to control the arduino (while this is powering the arduino), they don't work (of course, regulating the voltage with Lm7805). I can see that them try to move, but they can't.

Can somebody help me? Thanks!
99  Forum 2005-2010 (read only) / Interfacing / Read xbox wireless controllet on: December 09, 2010, 05:57:24 pm
Hello, I want to know how to read data of a wireless xbox controller with an arduino, without a computer...


Thanks!
100  Forum 2005-2010 (read only) / Interfacing / Re: xbee pro 900mHz on: November 17, 2010, 12:23:31 pm
Hmmm, now I know. But I only need the breakout board, only? The other pins of xbee are only for programming and power source? If i get the rx pin and connect it to the arduino receptor, only this?

Thanks!
101  Forum 2005-2010 (read only) / Interfacing / Re: xbee pro 900mHz on: November 17, 2010, 11:00:07 am
Thanks, I did not express myself right. I mean, how it's the code to communicate them? How many pins does he really uses. And I asked about the shield cuz I saw that there's a board that can breakout the xbee pins and make it easy to connect with the arduino, without shield, but I don't remember the name...

Anyway, thanks by the help!
102  Forum 2005-2010 (read only) / Interfacing / xbee pro 900mHz on: November 17, 2010, 10:47:27 am
Hello. I want to do a quadcopter with very high distance, and found this xbee pro ( http://www.sparkfun.com/products/9099 ) that can work at max range of 6 miles. I want to know some things:

Is this xbee like the other ones? I mean, it's simple to use? What's RPSMA?

If I buy this, I can use with arduino mega, without a shield?

If I buy, I will have to program them with the xbee explorer? If yes, I read this on the sparkfun product page:

Note: Some users have found that the XBee-PRO 900 cannot be used with the XBee Explorer Regulated. A work around that many users have found is to bypass diode D1 on the Explorer.

How could I program them?

I saw another xbee with the max range of 1 mile, with the same price ( http://www.sparkfun.com/products/8768 ) what does they have of difference?

How does they communicate themselves?

Thanks to everyone that helps me!
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