[Dashboard] Adds Radio Status showing radios active in the last 15mins

application/controllers/Dashboard.php

@@ -44,6 +44,12 @@ class Dashboard extends CI_Controller {
 			$this->load->view('setup/check_list');
 			$this->load->view('interface_assets/footer');
 		} else {
+
+			// 
+			$this->load->model('cat');
+
+			$data['radio_status'] = $this->cat->recent_status();
+
 			// Store info
 			$data['todays_qsos'] = $this->logbook_model->todays_qsos();
 			$data['total_qsos'] = $this->logbook_model->total_qsos();

application/models/Cat.php

@@ -82,6 +82,13 @@
 			return $query;
 		}
 
+		function recent_status() {
+			$this->db->where("timestamp > date_sub(now(), interval 15 minute)", NULL, FALSE);
+
+			$query = $this->db->get('cat');
+			return $query;
+		}
+
 		/* Return list of radios */
 		function radios() {
 			$this->db->select('id, radio');

application/views/dashboard/index.php

@@ -89,6 +89,39 @@
 
   <div class="col-sm-4">
   	<div class="table-responsive">
+
+		<?php if($radio_status->num_rows()) { ?>
+
+			<table class="table table-striped">
+					<tr class="titles">
+						<td colspan="2"><i class="fas fa-broadcast-tower"></i> Radio Status</td>
+					</tr>
+					
+					<?php foreach ($radio_status->result_array() as $row) { ?>
+					<tr>
+						<td><?php echo $row['radio']; ?></td>
+						<td>
+							<?php if($row['radio'] == "SatPC32") { ?>
+								<?php echo $row['sat_name']; ?>
+							<?php } else { ?>
+								<?php echo frequency_display_string($row['frequency']); ?> (<?php echo $row['mode']; ?>)
+							<?php } ?>
+						</td>
+					</tr>
+					<?php } ?>
+
+				</table>
+
+		<?php } ?>
+
+		<?php 
+		// converts a frequency in Hz (e.g. 3650) to 3.650 MHz 
+		function frequency_display_string($frequency)
+		{
+			return number_format (($frequency / 1000 / 1000), 3) . " MHz";
+		}
+		?>
+
     	<table class="table table-striped">
 			<tr class="titles">
 				<td colspan="2"><i class="fas fa-chart-bar"></i> <?php echo $this->lang->line('dashboard_qso_breakdown'); ?></td>