/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidIntro How far can a passive RFID tag be detected? RFID and NFC are pretty big topics, but this blog simply explores the RFID read range of various RFID technologies. RFID read range is intentionally short, but my application interests lie in slightlyen-USTelligent Community 12https://community.element14.com/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidSat, 19 Nov 2022 22:19:25 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:315c9140-b4d3-4560-8861-4f63a1e23a8fmaxpowerr1<p>Excellent Project. Good board cases.</p><img src="https://community.element14.com/aggbug?PostID=24769&AppID=393&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidTue, 15 Nov 2022 02:09:28 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:315c9140-b4d3-4560-8861-4f63a1e23a8fdang742<p>Very informative blog.&nbsp; I didn&#39;t know about the different frequencies used for RF tags.&nbsp; I am actually surprised that both 125kHz and 134.2kHz frequencies are used... because they seem so close together.&nbsp; I have a question about that one card with LEDs.&nbsp; Is it the transmitted RF signal that powers the LEDs or does this card have a battery inside?</p><img src="https://community.element14.com/aggbug?PostID=24769&AppID=393&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidSat, 12 Nov 2022 17:59:28 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:315c9140-b4d3-4560-8861-4f63a1e23a8fscottiebabe1<p>A pair of these:</p> <p><img height="210" src="/resized-image/__size/154x420/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-315c9140-b4d3-4560-8861-4f63a1e23a8f/pastedimage1668275898620v1.png" width="77" alt=" " />&nbsp;(<a id="" href="https://docs.johnsoncontrols.com/sensormatic/api/khub/documents/sr~khb0x6_a8AAJgOpJjoQ/content">https://docs.johnsoncontrols.com/sensormatic/api/khub/documents/sr~khb0x6_a8AAJgOpJjoQ/content</a>)</p> <p>Would give your front entrance that festive holiday look [emoticon:7d1c30a529784d14beaf7b38c0b9ab88]....</p><img src="https://community.element14.com/aggbug?PostID=24769&AppID=393&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidSat, 12 Nov 2022 13:06:46 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:315c9140-b4d3-4560-8861-4f63a1e23a8fbeacon_dave2<p>Looks like you might be able to go a bit further with UHF tags?</p> <p>ST25RU3993-EVAL Read Performance Demonstration<br /><a href="https://www.youtube.com/watch?v=YtK3EDw2zDk" rel="noopener noreferrer" target="_blank">https://www.youtube.com/watch?v=YtK3EDw2zDk</a></p><img src="https://community.element14.com/aggbug?PostID=24769&AppID=393&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/challenges-projects/project14/rfidnfc/b/blog/posts/long-range-passive-rfidSat, 12 Nov 2022 08:34:21 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:315c9140-b4d3-4560-8861-4f63a1e23a8frsjawale241<p>Interesting!</p> <p>Just want to know if you used any software to calculate the PCB coil/antenna design parameters?</p><img src="https://community.element14.com/aggbug?PostID=24769&AppID=393&AppType=Weblog&ContentType=0" width="1" height="1">