![]() ![]() ![]() I'm also still wondering if multiple Xbees with different ATIDs would interfere and slow the baud rate or not. How would the mesh network design interfere with my application? I plan to get this xbee, but it is a series 2. Ttabbal - I was reading the section on UART in the manual, and it seems to be able to do what I want. Its only after digging deep into all of the documents and reading the questions and answers on their forum does a clearer picture of their product line emerge. Digi International is the source of most of this confusion since nothing is clear from their web site. I know there is much confusion as to which module does what and the interchangeability of the firmware. Check the Digi docs and the firmware update options in X-CTU. Digi no longer sells series 1 modules, all are series 2 and are available with different network firmware.Īll of the modules with a part number starting with XB24- or XBP24- are series 2 that can be used to run 802.15.4, ZigBee, ZNet2.5 or DigiMesh firmware. The firmware makes the hardware run a specific network protocol. That's the only difference between series 1 and 2 modules. Also its is suggested to a poster to use a different firmware (network type) due to one type being better at what the poster wishes to do.ĭigi's series 1 modules are based on the FreeScale chip set whereas the series 2 modules are the Ember chip set. There are instructions on how to change the firmware from one type of network to another. What is your requirement at the receiver end? Just a video display for you to look at or is the video being examined by a processor to exact information and/or make discussions?Ĭheck and read the threads on Digi's Forum and Digi's Knowledge Base. This can greatly reduce the number of bits per second and thus the bandwidth required.Īnother option is to send the video as an analog (NTSC composite) signal. It can work but be prepared for some experimentation.Ĭompression of the video stream is what I believe you need. Running two (parallel) transmitters is good in theory but can be problematic in practice. ![]() What distance do you need to transmit? How much battery capacity will be available? If it will be run from a battery and the distance is short then the low power XBee may be better. You linked the the high power XBee module. There are many ways these modules/protcols can be set-up and used used (too many to go into here and now).ĭownload the documents on the different XBee modules/firmware and read carefully. I have been using ZigBee since my application requires many sensor locations. So they could run basic 802.15.4, ZNet, DigiMesh or ZigBee. The series 2 XBee modules can run various protocols by changing their firmware. Great way to really learn how things do work. I'm probably going to have to brood over this problem, maybe I can cut some stuff out. I'm assuming that making one of these modems myself would be next to impossible. If it does, then I wouldn't need to write much new code and the Xbee can directly replace the 2400bps product (other than adding a few voltage dividers and changing the baud). It works very well, but I was wondering if the Xbee worked the same simple way where if I set the Rx pin to high or low, the Tx pin would see the output. ![]() Oh, and I brought up that 2400bps product because I'm currently using it for testing purposes. An option might be to get a bunch of Xbees to do the job, and give them different ATIDs (assuming that they do not interfere with each other), but that would also be pretty expensive. I looked up the 802.11 modems, but the ones on sale are pretty expensive and have a small range. I can also switch between audio and video only, or use analogue for the audio (although I really wanted it to be digital for some reason). I can cut down data further by eliminating color and quality, but it's already looking pretty bad. For audio, I can only sample around 5760hz x2.5 for 8 bits. If I were to send a 128x128 size 8 bit picture, I could only do less than one picture a second with 115200bps. I wanted to have audio and video capabilities on it. My goal is to build some sort of rover/boat combination that would run around a small marsh near my home. I'm new to wireless, what you told me was really helpful. ![]()
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