From 7b15813422fe2da75eae2b17198209572ad0e658 Mon Sep 17 00:00:00 2001
From: Chris Tacke <ctacke@opennetcf.com>
Date: Fri, 27 Dec 2024 09:41:20 -0600
Subject: [PATCH] add read/write of voltaic modbus address

---
 .../Batteries.Voltaic.V10x/Driver/V10x.cs     | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/Source/Meadow.Foundation.Peripherals/Batteries.Voltaic.V10x/Driver/V10x.cs b/Source/Meadow.Foundation.Peripherals/Batteries.Voltaic.V10x/Driver/V10x.cs
index 5914769ba..fc84b0507 100644
--- a/Source/Meadow.Foundation.Peripherals/Batteries.Voltaic.V10x/Driver/V10x.cs
+++ b/Source/Meadow.Foundation.Peripherals/Batteries.Voltaic.V10x/Driver/V10x.cs
@@ -1,6 +1,7 @@
 using Meadow.Modbus;
 using Meadow.Units;
 using System;
+using System.Threading.Tasks;
 
 namespace Meadow.Foundation.Batteries.Voltaic;
 
@@ -133,4 +134,28 @@ private object ConvertRegisterToRawValue(ushort[] registers)
         // value is one register in 1/100 of a unit
         return registers[0] / 100d;
     }
+
+    /// <summary>
+    /// Reads the device's Modbus Address.
+    /// </summary>
+    /// <remarks>
+    /// The device can be discovered using an initial broadcast address of 254, then the actual sensor can be read using this method
+    /// </remarks>
+    public async Task<byte> ReadModbusAddress()
+    {
+        var registers = await base.ReadHoldingRegisters(9020, 1);
+        return (byte)registers[0];
+    }
+
+    /// <summary>
+    /// Reads the device's Modbus Address.
+    /// </summary>
+    /// <remarks>
+    /// The device can be discovered using an initial broadcast address of 254, then the actual sensor can be read using this method
+    /// </remarks>
+    public async Task WriteModbusAddress(byte address)
+    {
+        await base.WriteHoldingRegister(9020, address);
+        base.BusAddress = address;
+    }
 }