pigpiod is only on ipv6?

pi/roverd/config.go

@@ -115,6 +115,7 @@ type IRConfig struct {
 	Repeat      int  `yaml:"repeat" json:"repeat"`
 	GapMs       int  `yaml:"gapMs" json:"gapMs"`
 	ActiveLow   bool `yaml:"activeLow" json:"activeLow"`
+	PigpioAddr  string `yaml:"pigpioAddr" json:"pigpioAddr"`
 }
 
 type Config struct {
@@ -196,6 +197,7 @@ func LoadConfig(path string) (*Config, error) {
 			Repeat:      3,
 			GapMs:       100,
 			ActiveLow:   true,
+			PigpioAddr:  "localhost:8888",
 		},
 	}
 	if err := yaml.Unmarshal(data, &cfg); err != nil {
@@ -354,6 +356,9 @@ func validateIRConfig(cfg *IRConfig) error {
 	if cfg.Pin <= 0 {
 		return errors.New("pin must be > 0")
 	}
+	if cfg.PigpioAddr == "" {
+		cfg.PigpioAddr = "localhost:8888"
+	}
 	if cfg.CarrierHz <= 0 {
 		return errors.New("carrierHz must be > 0")
 	}

pi/roverd/ir_tx.go

@@ -14,7 +14,6 @@ import (
 )
 
 const (
-	pigpioAddr           = "127.0.0.1:8888"
 	piCmdSetMode         = 0
 	piCmdWrite           = 4
 	piCmdWaveClear       = 27
@@ -104,7 +103,11 @@ func NewIRTransmitter(cfg IRConfig, logger *log.Logger) (*IRTransmitter, error)
 		return nil, fmt.Errorf("ir disabled")
 	}
 
-	client, err := connectPigpioWithRetry(pigpioAddr, logger)
+	addr := cfg.PigpioAddr
+	if addr == "" {
+		addr = "localhost:8888"
+	}
+	client, err := connectPigpioWithRetry(addr, logger)
 	if err != nil {
 		return nil, fmt.Errorf("connect pigpio: %w", err)
 	}

pi/roverd/roverd.sample.yaml

@@ -65,3 +65,4 @@ ir:
   repeat: 3
   gapMs: 100
   activeLow: true
+  pigpioAddr: localhost:8888

pi/roverd/roverd.yaml

@@ -43,3 +43,4 @@ ir:
   repeat: 3
   gapMs: 100
   activeLow: true
+  pigpioAddr: localhost:8888