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configuration.nix
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configuration.nix
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{
inputs,
config,
modulesPath,
...
}:
let
growPkgs = inputs.grow.packages.x86_64-linux;
in
{
imports = [
"${modulesPath}/installer/sd-card/sd-image-aarch64.nix"
inputs.nixos-hardware.nixosModules.raspberry-pi-4
# Import all grow modules
] ++ (builtins.attrValues inputs.grow.nixosModules);
system.stateVersion = "24.05";
sdImage.compressImage = false;
# Place your SSH key(s) here
users.users.root.openssh.authorizedKeys.keys = [ "" ];
# https://github.com/NixOS/nixpkgs/issues/154163#issuecomment-1350599022
nixpkgs.overlays = [
(_final: prev: { makeModulesClosure = x: prev.makeModulesClosure (x // { allowMissing = true; }); })
];
# Install the grow-sensortest program
environment.systemPackages = [ growPkgs.sensortest-aarch64 ];
# Enable I2C
hardware.raspberry-pi."4" = {
i2c1.enable = true;
};
networking = {
hostName = "growPi";
# Open the Grafana HTTP port
firewall.allowedTCPPorts = [ config.services.grafana.settings.server.http_port ];
};
services = {
openssh.enable = true;
# Enable a pre-provisioned Grafana instance
grow-grafana = {
enable = true;
provision.datasource.package = growPkgs.yesoreyeram-infinity-datasource-aarch64;
};
# Enable the grow server
grow-server = {
enable = true;
package = growPkgs.server-aarch64;
};
# Enable and configure the grow agent
# This will
# - Measure with a BME680 air sensor at address 0x77 every 10 minutes
# - Measure with a BH1750FVI light sensor at address 0x23 every 20 minutes
# - Activate GPIO pin 24 at 10:00:00 UTC
# - Deactivate GPIO pin 24 at 04:00:00 UTC
grow-agent = {
enable = true;
package = growPkgs.agent-aarch64;
config = {
air.sample = {
sample_rate_secs = 600;
sensors.main = {
model = "Bme680";
address = "0x77";
};
};
light = {
control = {
mode = "TimeBased";
pin = 24;
activate_time = "10:00:00";
deactivate_time = "04:00:00";
};
sample = {
sample_rate_secs = 1200;
sensors.main = {
model = "Bh1750Fvi";
address = "0x23";
};
};
};
};
};
};
}