$p = New-Object System.IO.Ports.SerialPort('COM7', 115200)
$p.ReadTimeout = 5000
$p.Open()
Start-Sleep -Milliseconds 200
for ($i = 0; $i -lt 60; $i++) {
try {
$line = $p.ReadLine()
Write-Host $line
} catch {
break
}
$p.Close()