Help using scrape sensor

Shadowblues · January 17, 2024, 10:07pm

Hi, I have a problem to get values from a BYD battery website into Home Assistant. I did not find an integration, so I wanted to start with scraping. But I do not get any data to view. Maybe someone can help me.
The website needs a logon, then it shows an ASP page. On that page there are two selectors to set the battery system and the battery module. For each module, 16 individual voltages are present - and that is exactly what I need.

So I need to know how to get those values and how to call other pages showing other battery banks.

Here is the source code of an example site:


<html>
<head>
<title>RunData</title>
<meta http-equiv=Content-Type content=text/html; charset=utf-8 />
<meta http-equiv="Pragma" content="no-cache">
<link href="../default.css" rel="stylesheet" type="text/css">
<script language="javascript">
function submitForm(){    
	var form = document.getElementById("RunData");
	form.submit();
}
</script>
</head>
<body>
<center>
<br>
<h3>Run Data</h3>
</center>
<hr>
<center>
<br>
<form method="post" name="RunData" id="RunData" action="/goform/SetRunData">
<table border="0" cellspacing="0" cellpadding="0" class="common_table">
<tr>
<td colspan="2" width="20%"><h3>Array Num:</h3></td>
<td width="60%"><select name="ArrayNum" onChange="submitForm();">
<option value="1" id="1" selected="selected">1</option>
</select></td></tr>
<tr>
<td width="5%"></td>
<td width="15%">ArrayVoltage:</td>
<td width="60%"><input readonly="readonly" type="text" value=358.825>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>PackVoltage:</td>
<td><input readonly="readonly" type="text" value=359.279>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>Current:</td>
<td><input readonly="readonly" type="text" value=-0.069>&nbsp;&nbsp;A</td>
</tr>
<tr>
<td></td>
<td>SOC:</td>
<td><input readonly="readonly" type="text" value=25.800%></td>
</tr>
<tr>
<td></td>
<td>SOCWH:</td>
<td><input readonly="readonly" type="text" value=2111>&nbsp;&nbsp;WH</td>
</tr>
<tr>
<td></td>
<td>SOCAH:</td>
<td><input readonly="readonly" type="text" value=3.800>&nbsp;&nbsp;AH</td>
</tr>
<tr>
<td></td>
<td>SOH:</td>
<td><input readonly="readonly" type="text" value=100.000%></td>
</tr>
<tr>
<td></td>
<td>SysTemp:</td>
<td><input readonly="readonly" type="text" value=10.600>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>MaxCellVol:</td>
<td><input readonly="readonly" type="text" value=3.205>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>MinCellVol:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>MaxCellTemp:</td>
<td><input readonly="readonly" type="text" value=9.800>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>MinCellTemp:</td>
<td><input readonly="readonly" type="text" value=8.400>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>MaxVolPos:</td>
<td><input readonly="readonly" type="text" value=1></td>
</tr>
<tr>
<td></td>
<td>MinVolPos:</td>
<td><input readonly="readonly" type="text" value=2></td>
</tr>
<tr>
<td></td>
<td>MaxTempPos:</td>
<td><input readonly="readonly" type="text" value=1></td>
</tr>
<tr>
<td></td>
<td>MinTempPos:</td>
<td><input readonly="readonly" type="text" value=4></td>
</tr>
<tr>
<td></td>
<td>Power:</td>
<td><input readonly="readonly" type="text" value=0>&nbsp;&nbsp;KW</td>
</tr>
</table><br>
<table border="0" cellspacing="0" cellpadding="0" class="common_table">
<tr>
<td colspan="3" width="40%"><h3>Limit Information:</h3></td></tr>
<tr>
<td  width="5%"></td>
<td  width="15%">ChargeLimitVol:</td>
<td  width="60%"><input readonly="readonly" type="text" value=394.8>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>DischargeLimitVol:</td>
<td><input readonly="readonly" type="text" value=156.8>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>ChargeLimitCurrent:</td>
<td><input readonly="readonly" type="text" value=20.0>&nbsp;&nbsp;A</td>
</tr>
<tr>
<td></td>
<td>DischargeLimitCurrent:</td>
<td><input readonly="readonly" type="text" value=50.0>&nbsp;&nbsp;A</td>
</tr>
</table><br>
<table border="0" cellspacing="0" cellpadding="0" class="common_table">
<tr>
<td colspan="2" width="40%"><h3>Series Battery Num:</h3></td>
<td width="40%"><select name="SeriesBatteryNum" onChange="submitForm();">
<option value="1" id="1">1</option>
<option value="2" id="2">2</option>
<option value="3" id="3">3</option>
<option value="4" id="4">4</option>
<option value="5" id="5">5</option>
<option value="6" id="6" selected="selected">6</option>
<option value="7" id="7">7</option>
</select></td>
</tr><tr>
<td width="5%"></td>
<td width="15%">SerialNumber:</td>
<td width="60%"><input readonly="readonly" type="text" value=1C471810-00870>&nbsp;&nbsp;</td>
</tr><tr>
<td width="5%"></td>
<td width="15%">BattVol:</td>
<td width="60%"><input readonly="readonly" type="text" value=51.252>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVolDiff:</td>
<td><input readonly="readonly" type="text" value=0.002>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[1]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[2]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[3]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[4]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[5]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[6]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[7]:</td>
<td><input readonly="readonly" type="text" value=3.203>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[8]:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[9]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[10]:</td>
<td><input readonly="readonly" type="text" value=3.203>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[11]:</td>
<td><input readonly="readonly" type="text" value=3.203>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[12]:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[13]:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[14]:</td>
<td><input readonly="readonly" type="text" value=3.203>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[15]:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVol[16]:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVolMax:</td>
<td><input readonly="readonly" type="text" value=3.204>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellVolMin:</td>
<td><input readonly="readonly" type="text" value=3.202>&nbsp;&nbsp;V</td>
</tr>
<tr>
<td></td>
<td>CellTemp[1]:</td>
<td><input readonly="readonly" type="text" value=8.700>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>CellTemp[2]:</td>
<td><input readonly="readonly" type="text" value=8.500>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>CellTemp[3]:</td>
<td><input readonly="readonly" type="text" value=8.600>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>CellTemp[4]:</td>
<td><input readonly="readonly" type="text" value=8.700>&nbsp;&nbsp;&#8451</td>
</tr>
<tr>
<td></td>
<td>BalanceCtl:</td>
<td>1:<input type="checkbox" onclick="return false;">2:<input type="checkbox" onclick="return false;">3:<input type="checkbox" onclick="return false;">4:<input type="checkbox" onclick="return false;">5:<input type="checkbox" onclick="return false;">6:<input type="checkbox" onclick="return false;">7:<input type="checkbox" onclick="return false;">8:<input type="checkbox" onclick="return false;">9:<input type="checkbox" onclick="return false;">10:<input type="checkbox" onclick="return false;">11:<input type="checkbox" onclick="return false;">12:<input type="checkbox" onclick="return false;">13:<input type="checkbox" onclick="return false;">14:<input type="checkbox" onclick="return false;">15:<input type="checkbox" onclick="return false;">16:<input type="checkbox" onclick="return false;">
</td>
</tr>
</table>
</form>
</center>
</body>
</html>