diff --git a/k3s/files/etc/salt/minion.d/beacons.conf b/k3s/files/etc/salt/minion.d/beacons.conf
new file mode 100644
index 0000000..e88ab92
--- /dev/null
+++ b/k3s/files/etc/salt/minion.d/beacons.conf
@@ -0,0 +1,13 @@
+beacons:
+  inotify:
+    - files:
+        /dev:
+          mask:
+            - create
+            - delete
+          exclude:
+           - /dev/gpiochip3
+           - /dev/serial
+           - /dev/ttyUSB0
+           - /dev/ttyUSB1
+    - disable_during_state_run: True
diff --git a/k3s/files/etc/udev/rules.d/90-RFXtrx433.rules b/k3s/files/etc/udev/rules.d/90-RFXtrx433.rules
new file mode 100644
index 0000000..5ccc71b
--- /dev/null
+++ b/k3s/files/etc/udev/rules.d/90-RFXtrx433.rules
@@ -0,0 +1,5 @@
+SUBSYSTEM=="tty", \
+ACTION=="add", \
+DRIVERS=="ftdi_sio", \
+ATTRS{interface}=="RFXtrx433", \
+SYMLINK+="rfxtrx433"
diff --git a/k3s/init.sls b/k3s/init.sls
index 1ceddc2..0bb7f23 100644
--- a/k3s/init.sls
+++ b/k3s/init.sls
@@ -1,3 +1,4 @@
 include:
   - k3s.firewalld
   - k3s.network
+  - k3s.usb-devices
diff --git a/k3s/usb-devices.sls b/k3s/usb-devices.sls
new file mode 100644
index 0000000..8913377
--- /dev/null
+++ b/k3s/usb-devices.sls
@@ -0,0 +1,30 @@
+Install PyInotify:
+  pkg.installed:
+    - name: python3-pyinotify
+
+Add the rfxcom433 beacon file:
+  file.managed:
+    - name: /etc/salt/minion.d/beacons.conf
+    - source: salt://k3s/files/etc/salt/minion.d/beacons.conf
+    - user: root
+    - group: root
+    - mode: "0644"
+
+Restart salt-minion:
+  service.running:
+    - name: salt-minion
+    - onchanges:
+      - file: Add the rfxcom433 beacon file
+
+Add the rfxcom udev rule:
+  file.managed:
+    - name: /etc/udev/rules.d/90-RFXtrx433.rules
+    - user: root
+    - group: root
+    - mode: "0644"
+
+reload udev rules:
+  cmd.run:
+    - name: udevadm control --reload
+    - onchanges:
+      - file: Add the rfxcom udev rule