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dotfiles/system/nixos/rtl_433.nix

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2023-06-14 19:55:35 +00:00
{ pkgs, config, ... }:
{
systemd.services.rtl_433 = {
description = "rtl_433 service";
after = [ "mosquitto.service" ];
wantedBy = [ "multi-user.target" ];
serviceConfig = {
Type = "exec";
ExecStart = "${pkgs.rtl_433}/bin/rtl_433 -f868.3M -Yclassic -Mtime:utc -R78 -Fmqtt://127.0.0.1:1883,user=rtl,pass=didYouFindThis,retain=0,events=rtl433";
};
};
services.mosquitto.listeners = [
{
address = "0.0.0.0";
port = 1883;
settings = {
protocol = "mqtt";
};
users = {
rtl = {
password = "didYouFindThis";
acl = [ "write rtl433" ];
};
weewx-proxy = {
hashedPasswordFile = config.age.secrets.mosquitto-password-weewx-proxy.path;
acl = [ "read rtl433" ];
};
};
}
];
networking.firewall.interfaces =
let
mosquittoPorts = [ 1883 ];
in
{
"end0".allowedTCPPorts = mosquittoPorts;
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};
services.udev.extraRules = ''
# original RTL2832U vid/pid (hama nano, for example)
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2832", ENV{ID_SOFTWARE_RADIO}="1", MODE="0660", GROUP="plugdev"
# RTL2832U OEM vid/pid, e.g. ezcap EzTV668 (E4000), Newsky TV28T (E4000/R820T) etc.
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bda", ATTRS{idProduct}=="2838", ENV{ID_SOFTWARE_RADIO}="1", MODE="0660", GROUP="plugdev"
'';
}