quaintdev · August 30, 2021 17:01 · Aug 30, 2021
diff --git a/batterymon.go b/batterymon.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+	"github.com/distatus/battery"
+	"github.com/gen2brain/beeep"
+	"log"
+	"time"
+)
+// check battery every 'interval' seconds
+const interval int = 60
+
+// report warning below
+const percentageWarningBelow int = 15
+
+func main() {
+	log.Printf("Querying battery for status every %d secs.", interval)
+	log.Printf("Reporting battery low warning below %d", percentageWarningBelow)
+	for range time.Tick(time.Second * time.Duration(interval)) {
+		batteries, _ := battery.GetAll()
+		bat0 := batteries[0]
+		capacity := int(bat0.Current * 100 / bat0.Full)
+		if bat0.State == battery.Discharging && capacity < percentageWarningBelow {
+			beeep.Alert("Battery Low", "Please connect a power source", "assets/warning.png")
+		} else if batteries[0].State == battery.Charging && capacity == 100 {
+			beeep.Alert("Battery Full", "Please unplug power source", "assets/warning.png")
+		}
+	}
+}
diff --git a/batterymon.service b/batterymon.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=A battery monitoring service
+After=network.target
+
+[Service]
+User=username
+ExecStart=/home/user/go/bin/batterymon
+Restart=always
+RestartSec=10
+StartLimitIntervalSec=0
+
+[Install]
+WantedBy=multi-user.target