From 92072aac40d034c8a8ff9cd3274472df8fce84f9 Mon Sep 17 00:00:00 2001
From: Artem Makhutov <artem@makhutov.org>
Date: Sat, 16 May 2026 20:13:17 +0200
Subject: [PATCH] DADAPOWER: add voltages (#29923)

---
 charger/dadapower.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/charger/dadapower.go b/charger/dadapower.go
index e4d3a00bf..29b274832 100644
--- a/charger/dadapower.go
+++ b/charger/dadapower.go
@@ -37,6 +37,7 @@ const (
 	dadapowerRegChargingAllowed     = 1000
 	dadapowerRegChargeCurrentLimit  = 1001
 	dadapowerRegActivePhases        = 1002
+	dadapowerRegVolts               = 1003
 	dadapowerRegCurrents            = 1006
 	dadapowerRegActiveEnergy        = 1009
 	dadapowerRegChargingPortState   = 1015
@@ -242,6 +243,21 @@ func (wb *Dadapower) Currents() (float64, float64, float64, error) {
 	return res[0], res[1], res[2], nil
 }
 
+// Voltages implements the api.PhaseVoltages interface
+func (wb *Dadapower) Voltages() (float64, float64, float64, error) {
+	b, err := wb.conn.ReadInputRegisters(dadapowerRegVolts+wb.regOffset, 3)
+	if err != nil {
+		return 0, 0, 0, err
+	}
+
+	var res [3]float64
+	for i := range res {
+		res[i] = float64(binary.BigEndian.Uint16(b[2*i:])) / 100
+	}
+
+	return res[0], res[1], res[2], nil
+}
+
 var _ api.PhaseSwitcher = (*Dadapower)(nil)
 
 // Phases1p3p implements the api.PhaseSwitcher interface