Kit including accessories for an OpenKNX-compatible access control for fingerprint and NFC readers.
Fingerprint reader:
This hardware is compatible with the current finger readers of the R503 and R502 series. The primary difference is the number of fingerprint data storage spaces. The main variants in silver and black can be ordered directly here in the shop. This is the latest generation of these scanners, which support additional color variants in the LED ring (which the firmware uses). They are supplied with a connection cable approximately 20 cm long with a suitable plug for this board. Extensions can be ordered if required.
This fingerprint reader can be used both independently (e.g. with the reader itself mounted near the entrance door) and fully integrated into a switch program for use inside the house. For the latter application, a CNC-milled front panel can be ordered for a switch program from Gira and JUNG. This includes
- the original front panel from Gira/JUNG (some colors selectable), with a central milling for the fingerprint sensor and a small hole underneath for an additional LED status light,
- the original support ring from Gira or a printed one for JUNG for mounting on a standard flush-mounted box,
- an additional board/PCB to control two touch buttons and the additional status LED as well as
- a small, printed spacer for fastening.
If you are interested in integrating the switch ranges of other manufacturers than Gira and JUNG, please make contact.
A standard flush-mounted box (Ø 68 mm, screw spacing: 60 mm) can also be ordered for the switch insert:
The required installation depth of the switch insert is only approx. 30 mm, so a 40 mm deep box is generally sufficient. When using the additional board for binary inputs/relays, the 60 mm deep flush-mounted box is required.
NFC reader:
In addition to the fingerprint reader, an NFC reader can also be connected to the main board. It is possible to operate the NFC reader alone or in addition to the fingerprint reader. The external NFC board, which is connected by cable, has a size of just 45×45 mm.
There is also a variant of the switch insert mentioned above, which already includes an NFC reader. Please note, however, that only one NFC reader can be used at a time (either connected via cable or integrated in the switch insert).
In principle, the NFC reader should work with all common NFC tags (13.56 MHz), but the "unique ID" used by the tags is often only 4 bytes long (= less secure). The NFC tags (cards, stickers, key chains and bracelets), which can be ordered here as an option, have been tested for compatibility and all return a 7-byte ID.
Accesories:
Regardless of whether the fingerprint and/or NFC reader is used, an additional board with 4 binary inputs and optionally a bistable relay with capacitor can also be ordered to enable switching even if the bus power is lost. The additional board is simply plugged onto the base board; suitable spacers and screws/nuts are included. Notes on the relay:
The relay itself is designed for a maximum of 2 A at a maximum of 30 VDC, 0.5 A at a maximum of 60 VDC or 1 A at a maximum of 125 VAC. However, due to the relatively low insulation (1,000 V) between the primary and secondary sides, it is recommended to only operate it with a maximum of 60 V.
The additional cable extensions offered can extend both the cable to the fingerprint reader and the cable to the NFC reader. It is recommended not to exceed a maximum cable length of 2 m.
If you have any questions or feedback about the project, please make contact!
Please note:
To upload the firmware of all OpenKNX compatible projects offered here in the shop, this programmer needed.
Delivery as a kit:
All OpenKNX-compatible projects offered in the shop are delivered as a kit and without software. The user is free to use his own software or the OpenKNX-compatible software, which is available via the OpenKNX “Open Source” directories on GitHub (OAM Access Control) is available. In the latter case, this can be done with the OpenKNX Toolbox easiest.
