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Using Smartphone NFC as SATEL Access Control Card: RFID Key Duplication & Compatibility

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Can I use a smartphone with NFC as an access card for SATEL access control, or duplicate the RFID key onto the phone?

No, not as a direct SATEL access card: the thread says SATEL only supports 125 kHz passive transponders, so a phone’s NFC does not replace them directly [#18310254] If you want to use a phone, you would need a separate 13.56 MHz/MIFARE reader and some kind of intermediate integration, such as SATEL + Arduino/Raspberry or SATEL + INT-RS Plus + an RS232 RFID/NFC module [#18652939] Simply copying the key is unreliable because phones can present a different ID each time, so the access system cannot just store one fixed phone ID [#18999780] One suggestion was to use a MIFARE card reader plus an app that emulates a card with a permanent ID, but another reply asked for a proven MIFARE emulator, so this was not presented as a confirmed solution [#18343328][#18654481] For NFC-based phone access, a dedicated reader/controller solution is needed; one example mentioned is STid readers configured to read NFC without unlocking the phone, with the app running in the background [#20528997]
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  • #1 18049849
    PLukowiak
    Level 10  
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    Hello

    I am looking for information whether it is possible to use a smartphone with NFC as an access card for SATEL's access control. From what I can see from the documentation, 125kHz passive transponders are supported. I saw videos on Youtube about copying the RFID key from key fobs, but it does not work too much on the access card.

    Regards
    Peter
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  • #2 18310254
    345
    Level 15  
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    He has not yet invented a system integrated with the Satel bus. They only give 125khz
  • #3 18314589
    Serwis_LX

    Level 23  
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    Recently, we discussed a similar topic with the constructor in the company (it was about an intercom with NFC as a key) - the conclusion was that there was no point in introducing "as standard" a little more complicated to implement and secure technology for the "selected few" and to order people exchange electronic tags when we have perfectly working, simple and widely available technology now. NFC takes some time to roll out to the public sector before it becomes the standard of everything.

    You can always try to copy an RFID tag with youtube or check with Asians - they seem to be living a few years ahead

    You can read about these technologies, for example, here: https://www.nfc24.pl/rfid-nfc and here (it's a study for an economic university): https://www.researchgate.net/publication/3183...hnologii_RFID_i_NFC_w_zastosaniem_biznesowych

    Besides - attack manufacturers with applications for such solutions - nothing but profit works so well for the constructors and company management as a list of e-mails and transcription of telephone calls with customer requests for new functions :)
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  • #4 18343328
    Paweldoradca
    Level 14  
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    In my opinion, all you need is a mifare card reader and an application on your phone that emulates a card with a permanent id number
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  • #5 18367985
    345
    Level 15  
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    In my opinion, technology is in phones and people cannot do without them. What they have at hand is the most convenient and NFC is already on the market needed in the satellite. This is my opinion, but not only.
  • #6 18368044
    suworow
    VIP Meritorious for electroda.pl
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    Serwis_LX wrote:
    Recently, we discussed a similar topic with the constructor in the company (it was about an intercom with NFC as a key) - the conclusion was that there was no point in introducing "as standard" a little more complicated to implement and secure technology for the "selected few" and to order people exchange electronic tags when we have perfectly working, simple and widely available technology now.

    And competition (vect) introduced :)
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  • #7 18652939
    bercik_gsi
    Level 15  
    Posts: 327
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    I am also thinking about such an application.
    In my opinion, there are at least two roads.
    1. SATEL + ARDUINO / RASPBERRY WITH MODULE
    2. SATEL + INT-RS Plus + RS232 RFID NFC 13.56 MHz (I don't know how yet, because it requires implementation on the side of the reading module)
    3. SATEL + ROGER and MCT80M-BLE module

    Of course, only the integrated control panels come into play ...
  • #8 18654481
    Mscichu
    Level 18  
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    Paweldoradca wrote:
    In my opinion, all you need is a mifare card reader and an application on your phone that emulates a card with a permanent id number


    Do you have any proven MIFARE emulator?
  • #9 18999780
    slavo_s2k
    Level 14  
    Posts: 292
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    I am also looking for a solution, at home I have a BCS intercom and an external panel with a MIFARE reader, the phone can be easily recognized when applied, but unfortunately each time a different ID, so I will not save it in the database to open the gate, I have not found a solution for this yet :( so I'd like to hear from you ...
  • #10 18999926
    bercik_gsi
    Level 15  
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    I think the intermediate output will be a PROGRAMMABLE STICKER compatible with MIFARE 13.56MHz
  • #11 18999944
    slavo_s2k
    Level 14  
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    I did this to my wife, only it has a case and I managed to hide it between the case and the phone, for me without the case it will look average, these stickers are 2.5cm in diameter. [/ U]
  • #12 20520526
    345
    Level 15  
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    I don't think the company would lose on Mirafe, on the contrary.
  • #13 20526035
    przeqpiciel
    Network and Internet specialist
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    This will sound like a sculpture. However, based on my experience, it would be doable.

    I have a Satel control panel with an ETH module, thanks to which I can arm / disarm the alarm using the external HomeAssistant software. For this reason, if you are able to place something that your phone will read, you will be able to do something with the alarm.
  • #14 20528733
    slavo_s2k
    Level 14  
    Posts: 292
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    Or are there any NFC readers that simply read the signal from a specific phone and change the state of the relay and that's it? this would solve my problem of opening the gate, currently only by application or sticker (which is problematic to use because it is quite thick)?
  • #15 20528976
    gkwiatkowski
    CCTV and Stationary Alarms specialist
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    slavo_s2k wrote:
    And are there any NFC readers that simply read the signal from a specific phone and change the state of the relay and that's it? this would solve my problem of opening the gate, currently only by application or sticker (which is problematic to use because it is quite thick)?


    There are NFC/Bluetooth readers, but they require an external controller with a relay.

    https://www.roger.pl/produkty/system-kontroli...s-zblizeniowe-mct/mct80m-ble-terminal-dostepu
  • #16 20528984
    sosarek

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    @gkwiatkowski Centrali with a controller for a given number of passages - totally unprofitable in the case of one door, secondly, the handling of this is also not "pink" because you have to act through the application on the phone, it does not automatically read NFC tags.
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  • #17 20528997
    gkwiatkowski
    CCTV and Stationary Alarms specialist
    Posts: 4630
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    sosarek wrote:
    Control panel with a controller for a given number of passages - totally unprofitable in the case of one door


    And who will forbid the rich to have an NFC reader opening with the entire access control system?

    Added after 31 [seconds]:

    sosarek wrote:
    secondly, the handling of this is also not "pink" because you have to work through the application on the phone, it does not automatically read NFC tags.


    And that's really pointless.

    Added after 11 [minutes]:

    STid readers

    https://stid-security.com/en/products/categories/210:architect-blue-readers

    They can be configured to read NFC without unlocking the phone. The application must run in the background.
    The price isn't even killer.

Topic summary

✨ The discussion revolves around the feasibility of using a smartphone with NFC technology as an access control card for SATEL systems, which primarily support 125kHz passive RFID transponders. Participants express skepticism about the current integration of NFC into SATEL's offerings, noting that while NFC technology is convenient and widely used, it has not yet been standardized in access control systems. Suggestions include using MIFARE card readers and applications that can emulate card IDs. Some users propose integrating SATEL systems with Arduino or Raspberry Pi for custom solutions, while others mention the potential of programmable stickers compatible with MIFARE technology. The conversation also touches on the need for external controllers and relay systems to facilitate NFC access, with references to specific products that could enable such functionality.
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FAQ

TL;DR: 0 native SATEL NFC bus readers; "they only give 125 kHz." This FAQ explains workable options, integrations, and phone-as-card limitations for SATEL access control. [Elektroda, 345, post #18310254]

Why it matters: SATEL owners, installers, and tinkerers want to open doors with phones; this shows what works and what doesn’t today.

Quick Facts

Can I use my smartphone’s NFC as a SATEL access card directly?

Not with SATEL’s native bus readers. They use 125 kHz low‑frequency tags, not NFC. “They only give 125 kHz.” Phone-as-card requires hardware beyond the SATEL bus readers. [Elektroda, 345, post #18310254]

Why doesn’t my phone work on a 125 kHz SATEL reader?

Phones implement NFC at 13.56 MHz, while classic SATEL readers expect 125 kHz transponders. The radio layers and protocols differ, so a phone cannot present a compatible signal to a 125 kHz reader. [“RFID i NFC — NFC24”]

What’s the easiest way to get phone-based access on a SATEL system?

Add an NFC/BLE reader with its controller, then wire the controller’s relay to SATEL. How‑To: 1. Pick an NFC/BLE reader compatible with a controller/relay. 2. Connect reader to its controller; enroll phones/cards. 3. Wire the controller relay to SATEL input/lock and test triggering. [Elektroda, gkwiatkowski, post #20528976]

Is there a proven MIFARE card emulator app with a fixed UID?

Users report no reliable fixed‑UID emulation on phones. Many phones rotate the NFC UID, so each tap shows a different ID. That breaks one‑time enrollment workflows. Use a physical tag or an external reader/controller instead. [Elektroda, slavo_s2k, post #18999780]

My phone shows a different ID every time on a MIFARE reader. How do I fix that?

Place a thin NFC/MIFARE sticker under your phone case to provide a stable UID. Many tags are about 25 mm diameter, so a case helps hide bulk. Enroll the sticker once, then tap your phone as usual. This bypasses phone UID randomization. [Elektroda, slavo_s2k, post #18999944]

Do I need to unlock my phone for NFC access?

Some readers, such as STid Architect Blue, can read NFC without unlocking. The companion app must run in the background. “The application must run in the background.” Check the reader’s configuration to enable background NFC. [Elektroda, gkwiatkowski, post #20528997]

Will an NFC/BLE reader directly switch my lock relay?

No. NFC/BLE heads typically drive an external controller. The controller provides the relay output that connects to your lock or panel. Budget for both the reader and its controller. [Elektroda, gkwiatkowski, post #20528976]

Does the Roger MCT80M‑BLE open doors automatically when I approach?

A user notes operation requires the phone app and it does not automatically read NFC tags. Expect an explicit app action instead of hands‑free NFC. “It does not automatically read NFC tags.” [Elektroda, sosarek, post #20528984]

Can I clone my 125 kHz fob or card into my phone?

No. Phones implement NFC at 13.56 MHz and do not emulate 125 kHz transponders. That makes cloning low‑frequency tags into phones unworkable with standard hardware. [“RFID i NFC — NFC24”]

Can I drive SATEL with my phone via Home Assistant instead?

Yes. With a SATEL ETH module, users report arming and disarming through Home Assistant. If your phone can trigger an automation, HA can send commands to the panel over the network. [Elektroda, przeqpiciel, post #20526035]

Is moving to NFC worth it now for small sites?

One installer argues to stick with 125 kHz for now due to simplicity and ubiquity. “No point in introducing as standard… technology for the selected few.” NFC is growing, but adoption in public deployments takes time. [Elektroda, Serwis_LX, post #18314589]

Is there any SATEL‑native NFC reader on the bus yet?

No. The thread states SATEL provides 125 kHz readers only and lacks a bus‑integrated NFC solution. “They only give 125 kHz.” [Elektroda, 345, post #18310254]

What integration paths have users considered for NFC with SATEL?

Options mentioned: SATEL with Arduino/Raspberry plus an NFC module, SATEL + INT‑RS Plus with an RS‑232 13.56 MHz reader, or SATEL + Roger with an MCT80M‑BLE module. The note stresses integrated control panels only. [Elektroda, bercik_gsi, post #18652939]

How can I encourage a native SATEL NFC solution?

Contact the manufacturer. The advice: email and call with clear requests; documented customer demand pushes roadmaps faster than anything else. [Elektroda, Serwis_LX, post #18314589]
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