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This group provides support for those using RFID technology to study animal movement and behavior.

  1. What's new in this group
  2. The move is done now. Let me know if you have any questions about how this new Groups feature works.
  3. Recently we started using a new application on OE called Groups. As a result, you now see a Groups tab on the navigation menu above. With this application, users can start their own sub-communities on OE, like this RFID Working Group. Several new groups have already been created, and more are on the way. I a now beginning to transition our existing groups to this new app. On Friday February 15 I will pull the trigger and have this forum moved over to the Groups app. Here is what to expect: The forum will be moved from the Forums page to the Groups page. When you click on Groups in the navigation menu, you will see a list of groups, including the new RFID Working Group. When you click on the group, there will be a home page, a members page, and a forum page. The forum page will look just like the current one does. All the past forum topics will be there too. Anybody who is signed up for notifications on the current forum will be added to the new group and your personal notification settings for the forum will be maintained as they currently are. Eli Bridge will be the owner of the group, and the moderator. If anybody else wants to help moderate, talk to Eli. If anybody has any questions or concerns, please reply to this message or contact me directly. And if anybody has an I can use as either a logo or a banner for the new group, please send it to me.
  4. I know the ETAG readers (arduino-based) are the new gold standard, but there are a few limitations to them that have left us wishing for some of the old school RFID reading units. In the past, we had ordered them pre-fabricated from "Cellular Tracking Technologies" but they no longer have them in stock and do not plan to make any more. I do not know who originally convinced that company to make some... Does anyone know of a supplier who has already pre-fabricated some of those older RFID readers? We could use some to place a couple that are acting up...
  5. Meelyn, can you please list all the batteries you've tried and the results you got. I think people will want to know what does not work as well as what does.
  6. Hey everyone, I am Meelyn Pandit, a PhD Student in the Bridge Lab at OU. We have been getting many questions on what batteries to use with the latest version of the ETAG reader. I previously used these 5V lithium polymer battery packs that are used for charging cellphones: Anker 6700 mAh battery pack This will give you less than a day of power though. Larger batteries such as this 10000 maAh model or this 20000 maH model will give you a few days (2-3 and 5-6 days respectively). I have used these batteries in my bluebird research and they work well, but they require exchanging the batteries every few days to avoid losing data. Unfortunately, you cannot attach a solar panel to this battery setup because of the voltage regulator inside the battery case which prevents the battery from being charged by the solar panel and powering the ETAG reader. The best option for powering the ETAG reader in the field would be to use lead acid battery with a down voltage regulator (lead acid batteries are usually rated for 12V, but if you down regulate the voltage to 5V then it will multiply the amp hours by 2, more or less). You will need to waterproof the battery and the regulator using a plastic or metal case. Hope this information helps! If you have any questions on powering the ETAG reader or any general questions about using or coding the reader feel free to email me at meelyn.pandit@ou.edu. Kind regards, Meelyn Pandit
  7. Thanks, Eli. It is the FAT-16 format that I missed. I will keep trying alternatives~appreciate the helpful tips.
  8. Dear Alec, The RFID reader will only work with FAT-16 formatted SD cards. The 64GB card is almost certainly FAT-32, and so the RFID reader won't work with it. I know less about what is compatible with iPads. Obviously your mac is compatible with fat16 which will allow it to read smallish SD cards. It could very well be that the iPad will not read Fat16 and that's all there is to it. You could test this idea by taking one of the 2GB cards and reformatting to FAT32 (use disk utility on your mac). If the IPad comms with the reformatted card, then there's your answer. Of course that card will no longer work with the RFID reader. It might be that the lightening interface device is not FAT16 compatible, but I doubt it. You could test that by plugging it into your mac with the FAT16 card attached.
  9. So I have been using pretty inexpensive 2GB SD cards made by "Transcend." They work great in the Gen2 RFID Reader board, and are easily read by the SD slot on my Mac. But when I go to try to connect them to my iPad (using this little lightning-SD interface gem), it turns out the card doesn't appear to have any data. When I use the card in my SD slot on my Mac Powerbook, no problem - data are all there. So then I tried using a different SD card (64GB SanDisk Extreme Pro) which is easily read by the iPad and the IMEEK interface adapter. I know this because I can see photos that are stored on the SD card. But when I take the SD card and put it into the Gen2 RFID reader, and test it out, nothing gets written to this card. Upshot: One card can't be written to by the Gen2 RFID Reader, but can be read by my iPad. The other type of card can be written to by the Gen2 RFID Reader, but cannot be read by the iPad. Wondering if anyone has advice on a type of card - or a formatting - for a card that will solve this incompatibility?
  10. Here's a question that came as an email: I've heard about antenna's being vulnerable to water from other sources too. To waterproof them I'll usually dip them in epoxy or in plastidip (tool dip). In both cases it's a messy job. A colleague of mine uses expoxy putty that you can mold with your fingers. That might be a neater option, but I haven't tried it.
  11. I did eventually solve the problem. The string of 0s came after I tested the readers on my university campus. When tested in the field there was no problem. After speaking with an electronics technician on campus, we thought that the university's large radio antennae may have been interfering with readers.
  12. Dani, I suggest starting a new topic in this forum. That will get the attention of the forum moderator, Eli Bridge, and any other folks who follow the forum. Replying to this old thread won't necessarily attract a reply. Philip, did yo solve your original problem? If so, please do post to let us know the solution.
  13. Im trying to run Termite 3.1 on a Windows VirtualBoxVM on a mac, but the program fails to initialize the port, and doesn't verify the COM port settings. I have all the settings the same as I do on a windows computer, where termite runs fine, including the port set to COM 3. I was wondering if anyone has tried using termite on virtual windows and had the same problem? ~Dani Freund
  14. Hi Danifreund. Thanks for using the forum. I Don't use excel much anymore unless I really need to pour through the data line by line. My typical routine now is to decompress data using a loop in R, visualize the data for a sanity check, and then proceed with whatever analysis. The result of decompression is a simple text file that's pretty easy to store. I used to use Excel to do the decompression but the spreadsheets would get unwieldy.
  15. I'm also new to RFID's and I was wondering if there are any other methods to manage and store all of the incoming data from Termite besides exporting it to excel?
  16. The first possibility that comes to mind is a bad connection between the sd card socket and the circuit board. But that would not explain the odd date you are getting (did it really say jan 01, or was the clock not yet set?). If you get an SD card error then you will not get any logging activity. I would first try going over all the connections on the SD card socket with a soldering iron (remelt all solder and look out for bridges). That failing, I would try reprogramming the reader with the boot loader. After that there comes the decision to do further troubleshooting or just toss the board out.
  17. Hi all, I have been using the Generation 2 RFID circuit boards for about a year now. I deployed the boards last winter/spring for data collection, brought them in from the field in late July to clean them up, make repairs and store them until this fall. When I went to deploy the circuit boards again just recently, I have been getting an error message with some boards saying "SD card is write protected" whenever I try to re-program the clock settings, id and on/off schedule. After receiving the error message, it flashes a message saying "began logging data on 01/01/01 00:00:00" and no data is recorded on the cards. I have checked that the "switch" on the side of the cards is not in the lock position, and have tried with both old and new (never used) SD cards (from Mouser Electronics, INC) and get the same error message. The cards have also been cleared of any data files previously stored on them. The only thing that has changed from last winter is that the readers have been inactive for a few months. Batteries are fully charged. I was wondering if anyone else has had similar experiences? Would this be a card problem or a circuit board problem? Any suggestions or advice would be greatly appreciated. Thanks, Chris
  18. Some of my RFID readers are storing hundreds of visits as "0000000000". Has anyone had any experience with this? I thought it might be a low battery issue because it usually happens at the end of the list of data for that specific download, shortly before the battery dies. But a few times it will be the first data entry on a fresh battery. I have the threshold set as 80% and I'm using Gen 1 readers. Any ideas? Thanks!
  19. I use a handheld LCR meter to test the inductance of my antennas, and it has worked just fine with no problems at all. I think most models should work fine. A colleague and I use different handheld meters and both work equally well.
  20. Does anyone know if a handheld LCR meter would be sufficient for measuring impedance values between 1.3 and 1.4 mH? And if so, any recommendations?
  21. First you get the data into a text file. You can set up Termite to log to a text file or you can just download all the data, select it all (cntl - A), copy it (cntl - c), and paste it into a text doc or word doc (cntl - v). Edit the file if you wish (delete the non-data stuff), and save the data as a text doc. Open a blank excel document (or if you are appending data, open an existing file). Select the cell where you want the data to go. From the top menu, select through Data - Get External Data - Import Text File. Then select the txt file and tell excel that you have a space delineated file. That's one way to do it. Thanks for using the forum.
  22. I forgot to add that I am using the Generation 1 readers.
  23. I'm a new RFID user and am having trouble figuring out how to export my RFID data from termite to Excel after I've downloaded it. Any suggestions?
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