To go from phone to Arduino, you could use Blue Tooth, wifi shield, or Ethernet shield with Cat 5 cable. You can connect a Max232 chip to Arduino to get RS232 output. The Arduino can most likely do what you need with time to spare. We need more specifics to give more specific information.
suppose to use....android phone
transmit the signal from wifi
RS-232 and send out to a RS-232 wireless controller
Hi,I just posted a way to do this using a windows phone, no app required, so it should work with the android. The Arduino doesn't need to be connected with a wifi shield. I used the wireless router in the house, just an ethernet shield and a cable. The Arduino serves up a webpage and then it runs the x10 which do the dimming. So, you access the web page from the android and click the buttons. I have put 'dim and brighten', along with a number of x10 on/off command buttons. The thing about x10, you have to select a specific address and then send an on, then you can dim/brighten. Here is the video link. I posted the code in a previous post.http://youtu.be/0a1vkSB2LQYRegards,Walt,
ah... another question, is it possible to directly connect my arduino uno r3 board TX and RX and gnd pin to RS232 serial port pin 2,3 and 5?
Quoteah... another question, is it possible to directly connect my arduino uno r3 board TX and RX and gnd pin to RS232 serial port pin 2,3 and 5?You need a max232 chip for that. A link for example: http://sodoityourself.com/max232-serial-level-converter/
The voltages of RS232 are different and sometimes higher.Look on this page about the middle area where it talks about voltages. http://en.wikipedia.org/wiki/RS-232
how abt the device has the input voltage of 5V?
i tried to directly wire up from arduino to RS-232 ( yea seriously). and I try to write a program.i tested this program and i watched the status from the serial monitor, it kept print the value 2FF000D repeatedlywhile i send 1 to the monitor, it changed the value to 2FF400D but still repeatedlyand i tried to send another num to monitor, it stopped.how come the value keep looping, how can i send hex once only?however i tried the above step after i connected between TX,RX and GND of arduino board and 232port 2,3,5 pin.i sent 1 out , i could see the monitor that showed the hex of 2FF400D, but the remote dimmer didnt turn on.what's the problem here?