does anyone know if its possible to control another arduino using a 433MHz tx and Rx. ive been looking for a long time and cant find anything. i my trying to control mulit servos and stepper motors wireless.
Absolutely. Once you establish a communication link between two Arduinos, you can send data both ways, but not simultaneously, and get either board to respond via the code in your sketch.
I suggest you look at some of the products from Adafruit using the 433 band with serial or SPI I/O and study the simple examples. When you get one working then you can expand on the concept to include the features you need.
thank you soo much!
Rf 433 modules are cheap and dont work easily... i tried once.. if you are noob you wont get there easy...
You better move to xbee which is better but coust little more
ive thought about it but it doesn't have the range i need.
Take a look at this product from Adafruit. It runs 100mW, has an external SMA antenna connector, and talks via SPI. The default baud value is 55.555Kbps(55K555bps) and it comes with a link to a nice library containing examples. Be sure to include the SMA edge launchers in your order. They're narower than the standard size.
I'm using one to transmit battery voltage and consumed mAh from a remote aircraft.
Do you think this is good to work with arduino + ethernet ?
1 master 4 slaves network
Don't know about the ethernet part but the radios and software are designed for networks.
OK artic eddie i will take a look
What range do you need?
I bought some cheap 433MHz modules and found them to work easily enough that even I set them up without any problems. And I'm getting 200meters before even adding an antenna to the receiver, which I'm not in a hurry to do because I don't have much over 200 meters of space to test on.
I need small range, i think i could work with rf 433 but i was afraid of getting troubles bugs and interference as the first time i worked with it i got some interferences, thats why i bought xbee
But nice your 200 mts test i never tought rf 433 would go so far.
DO you have any experience in arduino+ ethernet + xbee?
No. Haven't needed it yet. Also don't want to pay for it. I've been learning my way through different wireless methods, IR, low freq RF, Bluetooth, and have wifi modules on the way. But the 433MHz tech is working perfectly for everything I do within the home and the wifi modules are to start playing with 'control from anywhere' situations.