Hello,
I am building a vehicle that can be remote controlled and take pictures (c328 camera seeed studio http://www.seeedstudio.com/depot/uart-c … p-209.html). The pictures are continuously send from the vehicle to my PC.
First I only wanted to use the nrf24L01+ for remote controlling the vehicle and sending pictures from vehicle to PC. I’ve read that the nrf24L01 is not capable of sending and receiving data at the same time (bidirectional communication)? Correct me if I am wrong!
Now I would like to send the pictures using the nrf24L01+ and the control of the vehicle using a RF link receiver and transmitter.
nrf24L01: http://www.sparkfun.com/commerce/produc … cts_id=705
Rf modules: http://www.sparkfun.com/commerce/categories.php?c=79 (different options possible)
Will the two modules interfere each other when mounted close next to each other?
What speed RF module will I need to remotely control the vehicle? 2400 or 4800 bps? What in the influence on the frequency of the module?
Are there maybe other solutions possible for my problem?
Thanks in advance and best regards.
Is there anyone who has got experience with this combination?
Just curious: Is is possible to send control commands to servo using the RF kit?
Thanks in advance.
Sparkles:
Is there anyone who has got experience with this combination?
Just curious: Is is possible to send control commands to servo using the RF kit?
Thanks in advance.
other solutions are one of the IEEE 802.15.4 modules (not chips) made by Digi (sold here), Jennic and many others. The 2.4GHz version of these yield 80-120Kbps net, via a 250Kbps air link rate.
Servo commands: Buy one of the servo controllers that takes UART serial data commands. Tie it to a Digi XBee’s serial port, trying to avoid use of RS232. Otherwise you can dive into microcontroller PWM programming.
Sending video on a slow serial port link is not a good novice project!
This month’s issue of Circuit Cellar has a project where a small camera is interfaced to an 8 bit AVR. Complicated.
Hi Stevech and other SparkFun users,
Thanks for you reply 
Just to make some things more clear.
I am building a vehicle that is controlled using two different motors and two servos.
I will use two Arduino Mega’s two nrf24L01 and a RF module set (transceiver and receiver). Before I start buying components I would like to get questions to some questions
For the control of the vehicle I would like to do this using one of the RF module combinations (315 or 434 MHz). Thats why I am curious about the frequency (MHz) and baud rate (bps) to choose for this kind of communication.
I assume the highest baud rate will be best (maybe I will add some other components that need wireless control). What will the influence of the frequency be? will there be the possibility that one of the frequency’s (315 or 434 MHz) interfere the nrf24L01 module?
The C328 is capable of sending still images and video.
Sending pictures is not so difficult I think. This is a single file that I will store on a SD card and send wireless (chopped into little packets) to the host Mega. Correct me if I am wrong.
What can the format of the video format be (i am not experienced on this area)? Will this be separate pictures send with a high rate (frame rate)? Or is this a raw format (one continuous stream)?
Thanks in advance and best regards,
Sprakles.
hi, people following this thread should also check out this one: http://www.arduino.cc/cgi-bin/yabb2/YaB … 1289089043 seems like a good idea to link such things together, given how much time it can take to find stuf.
-mike