Add min/max observed CPU temps.

#728.

main/gen_gdl90.go

@@ -1148,6 +1148,8 @@ type status struct {
 	Uptime                                     int64
 	UptimeClock                                time.Time
 	CPUTemp                                    float32
+	CPUTempMin                                 float32
+	CPUTempMax                                 float32
 	NetworkDataMessagesSent                    uint64
 	NetworkDataMessagesSentNonqueueable        uint64
 	NetworkDataBytesSent                       uint64
@@ -1350,7 +1352,7 @@ func printStats() {
 		runtime.ReadMemStats(&memstats)
 		log.Printf("stats [started: %s]\n", humanize.RelTime(time.Time{}, stratuxClock.Time, "ago", "from now"))
 		log.Printf(" - Disk bytes used = %s (%.1f %%), Disk bytes free = %s (%.1f %%)\n", humanize.Bytes(usage.Used()), 100*usage.Usage(), humanize.Bytes(usage.Free()), 100*(1-usage.Usage()))
-		log.Printf(" - CPUTemp=%.02f deg C, MemStats.Alloc=%s, MemStats.Sys=%s, totalNetworkMessagesSent=%s\n", globalStatus.CPUTemp, humanize.Bytes(uint64(memstats.Alloc)), humanize.Bytes(uint64(memstats.Sys)), humanize.Comma(int64(totalNetworkMessagesSent)))
+		log.Printf(" - CPUTemp=%.02f [%.02f - %.02f] deg C, MemStats.Alloc=%s, MemStats.Sys=%s, totalNetworkMessagesSent=%s\n", globalStatus.CPUTemp, globalStatus.CPUTempMin, globalStatus.CPUTempMax, humanize.Bytes(uint64(memstats.Alloc)), humanize.Bytes(uint64(memstats.Sys)), humanize.Comma(int64(totalNetworkMessagesSent)))
 		log.Printf(" - UAT/min %s/%s [maxSS=%.02f%%], ES/min %s/%s, Total traffic targets tracked=%s", humanize.Comma(int64(globalStatus.UAT_messages_last_minute)), humanize.Comma(int64(globalStatus.UAT_messages_max)), float64(maxSignalStrength)/10.0, humanize.Comma(int64(globalStatus.ES_messages_last_minute)), humanize.Comma(int64(globalStatus.ES_messages_max)), humanize.Comma(int64(len(seenTraffic))))
 		log.Printf(" - Network data messages sent: %d total, %d nonqueueable.  Network data bytes sent: %d total, %d nonqueueable.\n", globalStatus.NetworkDataMessagesSent, globalStatus.NetworkDataMessagesSentNonqueueable, globalStatus.NetworkDataBytesSent, globalStatus.NetworkDataBytesSentNonqueueable)
 		if globalSettings.GPS_Enabled {
@@ -1649,8 +1651,16 @@ func main() {
 	go printStats()
 
 	// Monitor RPi CPU temp.
+	globalStatus.CPUTempMin = invalidCpuTemp
+	globalStatus.CPUTempMax = invalidCpuTemp
 	go cpuTempMonitor(func(cpuTemp float32) {
 		globalStatus.CPUTemp = cpuTemp
+		if isCPUTempValid(cpuTemp) && ((cpuTemp < globalStatus.CPUTempMin) || !isCPUTempValid(globalStatus.CPUTempMin)) {
+			globalStatus.CPUTempMin = cpuTemp
+		}
+		if isCPUTempValid(cpuTemp) && ((cpuTemp > globalStatus.CPUTempMax) || !isCPUTempValid(globalStatus.CPUTempMax)) {
+			globalStatus.CPUTempMax = cpuTemp
+		}
 	})
 
 	// Start reading from serial UAT radio.

web/plates/js/status.js

@@ -130,6 +130,8 @@ function StatusCtrl($rootScope, $scope, $state, $http, $interval) {
 			if (boardtemp != undefined) {
 				/* boardtemp is celcius to tenths */
 				$scope.CPUTemp = String(boardtemp.toFixed(1) + '°C / ' + ((boardtemp * 9 / 5) + 32.0).toFixed(1) + '°F');
+				$scope.CPUTempMin = String(status.CPUTempMin.toFixed(1)) + '°C';
+				$scope.CPUTempMax = String(status.CPUTempMax.toFixed(1)) + '°C';				
 			} else {
 				// $('#CPUTemp').text('unavailable');
 			}

web/plates/status.html

@@ -107,7 +107,7 @@
 					</div>
 					<div class="col-sm-4 label_adj">
 						<span class="col-xs-5"><strong>CPU Temp:</strong></span>
-						<span class="col-xs-7">{{CPUTemp}}</span>
+						<span class="col-xs-7">{{CPUTemp}} <div ng-show="DeveloperMode == true">[{{CPUTempMin}} - {{CPUTempMax}}]</div></span>
 					</div>
 					<div class="col-sm-4 label_adj">
 						<span class="col-xs-5"><strong>Free Storage:</strong></span>