Add temperature sensor to PCB for compensation calculation.

frontend.sch

@@ -229,7 +229,7 @@ F 3 "~" H 750 900 50  0001 C CNN
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	650  1550 550  1550
+	650  1550 600  1550
 Wire Wire Line
 	550  1550 550  1300
 Wire Wire Line
@@ -967,4 +967,112 @@ Wire Wire Line
 	2950 3100 2950 4050
 Wire Wire Line
 	2950 4250 2950 5000
+$Comp
+L Device:C C307
+U 1 1 5E051281
+P 600 1950
+F 0 "C307" H 715 1996 50  0000 L CNN
+F 1 "10u" H 715 1905 50  0000 L CNN
+F 2 "Capacitor_SMD:C_0805_2012Metric" H 638 1800 50  0001 C CNN
+F 3 "~" H 600 1950 50  0001 C CNN
+	1    600  1950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	600  2100 750  2100
+Connection ~ 750  2100
+Wire Wire Line
+	600  1800 600  1550
+Connection ~ 600  1550
+Wire Wire Line
+	600  1550 550  1550
+$Comp
+L Sensor_Temperature:DS18B20 U306
+U 1 1 5E08DC55
+P 5400 1950
+F 0 "U306" H 5170 1996 50  0000 R CNN
+F 1 "DS18B20" H 5170 1905 50  0000 R CNN
+F 2 "Package_TO_SOT_THT:TO-92_Inline" H 4400 1700 50  0001 C CNN
+F 3 "http://datasheets.maximintegrated.com/en/ds/DS18B20.pdf" H 5250 2200 50  0001 C CNN
+	1    5400 1950
+	-1   0    0    -1  
+$EndComp
+$Comp
+L Device:C C314
+U 1 1 5E096137
+P 6100 1950
+F 0 "C314" V 5848 1950 50  0000 C CNN
+F 1 "100n" V 5939 1950 50  0000 C CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric" H 6138 1800 50  0001 C CNN
+F 3 "~" H 6100 1950 50  0001 C CNN
+	1    6100 1950
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	6100 2100 6100 2350
+Wire Wire Line
+	6100 2350 5400 2350
+Wire Wire Line
+	5400 2350 5400 2250
+Wire Wire Line
+	5400 2350 5400 2450
+Connection ~ 5400 2350
+Wire Wire Line
+	6100 1800 6100 1500
+Wire Wire Line
+	6100 1500 5400 1500
+Wire Wire Line
+	5400 1500 5400 1650
+Wire Wire Line
+	5400 1500 5400 1400
+Connection ~ 5400 1500
+$Comp
+L power:+3V3 #PWR0130
+U 1 1 5E0AC49E
+P 5400 1300
+F 0 "#PWR0130" H 5400 1150 50  0001 C CNN
+F 1 "+3V3" H 5415 1473 50  0000 C CNN
+F 2 "" H 5400 1300 50  0001 C CNN
+F 3 "" H 5400 1300 50  0001 C CNN
+	1    5400 1300
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0131
+U 1 1 5E0AE6F5
+P 5400 2450
+F 0 "#PWR0131" H 5400 2200 50  0001 C CNN
+F 1 "GND" H 5405 2277 50  0000 C CNN
+F 2 "" H 5400 2450 50  0001 C CNN
+F 3 "" H 5400 2450 50  0001 C CNN
+	1    5400 2450
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5100 1950 4750 1950
+$Comp
+L Device:R R316
+U 1 1 5E0B45CD
+P 4750 1700
+F 0 "R316" H 4820 1746 50  0000 L CNN
+F 1 "4k7" H 4820 1655 50  0000 L CNN
+F 2 "Resistor_SMD:R_0603_1608Metric" V 4680 1700 50  0001 C CNN
+F 3 "~" H 4750 1700 50  0001 C CNN
+	1    4750 1700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	4750 1850 4750 1950
+Connection ~ 4750 1950
+Wire Wire Line
+	4750 1950 4650 1950
+Wire Wire Line
+	4750 1550 4750 1400
+Wire Wire Line
+	4750 1400 5400 1400
+Connection ~ 5400 1400
+Wire Wire Line
+	5400 1400 5400 1300
+Text HLabel 4650 1950 0    50   BiDi ~ 0
+FRONTEND_TEMP
 $EndSCHEMATC