The xBee - series 1 - modules take the These modules allow a very reliable and simple communication between micro controllers, computers or other systems by using just a serial port! They have also a 1mW wire antenna on them. They supports Point to point and multi-point networks. Download the XCTU software from here. Now click on it first image above and set the CH field to e.
These values must be the same to all xBee modules to communicate with each other. Now as this xBee will be our transmitter, set the CE field as "Coordinator". If the baud rate isn't set to bps, change it to this value.
Connect the explorer board with your computer again and follow the same procedure second image above but this time set the CE field as "End device". Try downloading the Codebender plugin and clicking on the "Run on Arduino" button to program your Arduino board with this sketch.
And that's it, you've programmed your Arduino uno board with this sketch! And here's the "xbee Receiver" code, connect the second Arduino uno board with your computer and press the "Run on Arduino " button. You have successfully completed one more "How to" tutorial and you learned how to fade an LED wirelessly by using the xBee S1 modules.
Why an additional Arduino in the transmitter if XBee has its own pins. The receiver only passes the serial info on. Imagine an alarm system that sends a text message to you if the pin on the transmitter has changed its state after someone opened the door.
Sorry my language. One last note for this step. I highly recommend putting this circuit on a shield, and using the female headers to mount the XBee. This will not only make your circuit much sturdier, a work of art, not permanently comission an XBee, but also speed up your prototyping as well; which is probably what your doing when your uploading code often enough to benift from doing it wirelessly. If you're not ready not solder, though, or dont belive me lol, you can always breadboard the ciruit and use it like that.
Which is what I did when I was prototyping this circuit. For some reason I cannot attach my code here, do you know why? I've tried Chrome and Explorer. So I pasted it below. It has one interrupt on pin 2 tied to RX on destination Arduino to know when a upload is attempted and therefore reset the destination Arduino at the approriate time.
Another interrupt exists on pin 3 tied to A0 on destination Arduino that is used as a signaling pin by the programmed Arduino to tell this Arduino that the programming process has concluded.
An example of such a signaling routine is shown below. For best practice, include it as the first line in your setup routine of your programmed Arduino. The afore mentioned code simply stops the timeout, allowing you to upload code immeadelty after your previous upload. In any case you cannot upload until the blue LED on D4 turns off. Your target Arduino, the one being wirelessly programmed, needs to have the Duemilanove bootloader. This makes it easier to upload code to since the timing of the reset signal does not have to be so percise.
So now that I have shown you a simple and effective wireless programming method using XBees S2. Maybe you guys can help improve it? That chip you see is a multiplexer. I was wondering if the Arduino could still retain serial recieve capabilities to gather information from another device. So far it can transmit just fine, but any time it recieves something over the RX line it will reset.
Maybe code could be written that controls the multiplexer to switch lines between the D0RX pin and the XBee or another periphiral? Based on some serial data I aquired, it seems the code to look for a 3 byte line "0x14 0x10 0x14".
For example, if the shielded Arduino recieves this line it will reset the destination Arduino. This would allow you to transmit to the destination Arduino from a serial window without reseting it everytime you transmitted; Of course, as long as your transmission does not start with the reset code.
Take care and thanks for viewing. It will be interesting to see where this project goes from here. Reply 4 years ago. The beginning or "high" part of the address will be A, Digi's pre-assigned range of address space.
The last or "low" part of the address will be different for every radio. For the radio on the right, it's B9E Write down these numbers, indicating which is the coordinator and which is the router so that you can refer to them while you're working with them. Click here to download the drivers for your operating system.
I have a project which the information from the microcontroller drop rate changes of dextrose like sending notification "nearly empty" or "Sudden change of drop rate. Drop rate of 15 automatically return to 14" would display in an application in a computer. I am thinking of using ZigBee and it would be responsible for transferring the information but I am new with the technology.
Does anyone could help me how to program the ZigBee module? I have seen some articles saying that it could be programmed in eclipse CDT. I am bit confused how to get start. So when your microcontroller writes data into the sender XBee, it will come out of the receiving XBee and be read and displayed or whatever you need by your software.
It really depends on how much configuration your installation can handle. Is this a one off installation, or a "system" of products you want to make that have to be able to work together in whatever configuration they're bought?
If your embedded devices have to find each other automatically, then you'd need a way to get the embedded microcontroller to get the modules discover each other, make a connection, and then have the application code in the embedded microcontrollers talk to each other and identify what they need to do with each other.
In this case, you probably would be better off with the upfront much more complex and likely expensive design where the zigbee stack is inside the embedded controller, so your application code can use it properly to control connectivity. The TI zigbee pro evaluation kit is very comprehensive, and seems great to me so far. It sounds like you're at the point where you need to spend some money and get some experience with real modules, just to get a feel for the technology.
Though be warned, you may need IAR embedded workbench to work with these long term, and that's pretty expensive software!
0コメント