app/views/schools/cads/live_data.html.erb
<h1>Test CAD</h1>
<h2>Mode</h2>
<p><%= @cad.test_mode ? "TEST" : "LIVE" %></p>
<% if @error %>
<h2>Error</h2>
<p><%= @error %></p>
<% else %>
<h2>Current reading</h2>
<p><%= @reading.to_f %></p>
<% end %>
<br/>
<br/>
<%= link_to 'Back', school_cads_path(@school), class: 'btn' %>
<%= link_to 'Retry', school_cad_live_data_path(@school, @cad), class: 'btn btn-success' %>