From 0c4ce3f4223baad3116a055d0df9e23b2764d7ee Mon Sep 17 00:00:00 2001
From: premultiply <4681172+premultiply@users.noreply.github.com>
Date: Thu, 4 Jun 2026 13:32:49 +0200
Subject: [PATCH] HardyBarth: add phase voltages (#30490)

---
 charger/hardybarth-ecb1.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/charger/hardybarth-ecb1.go b/charger/hardybarth-ecb1.go
index bc2770bef..07db7d7a5 100644
--- a/charger/hardybarth-ecb1.go
+++ b/charger/hardybarth-ecb1.go
@@ -233,6 +233,18 @@ func (wb *HardyBarth) Currents() (float64, float64, float64, error) {
 	return res.Data[obis.CurrentDemandL1], res.Data[obis.CurrentDemandL2], res.Data[obis.CurrentDemandL3], nil
 }
 
+var _ api.PhaseVoltages = (*HardyBarth)(nil)
+
+// Voltages implements the api.PhaseVoltages interface
+func (wb *HardyBarth) Voltages() (float64, float64, float64, error) {
+	res, err := wb.meterG()
+	if err != nil {
+		return 0, 0, 0, err
+	}
+
+	return res.Data[obis.VoltageDemandL1], res.Data[obis.VoltageDemandL2], res.Data[obis.VoltageDemandL3], nil
+}
+
 // var _ api.Identifier = (*HardyBarth)(nil)
 
 // // Identify implements the api.Identifier interface