EESchema Schematic File Version 4 LIBS:batterystation-cache EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 3 9 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L conn:CONN_01X08 P11 U 1 1 5CBC1B14 P 6900 3450 F 0 "P11" H 6978 3491 50 0000 L CNN F 1 "MAX6675" H 6978 3400 50 0000 L CNN F 2 "Power_Integrations:SO-8" H 6900 3450 50 0001 C CNN F 3 "" H 6900 3450 50 0000 C CNN 1 6900 3450 1 0 0 -1 $EndComp $Comp L power:GND #PWR0112 U 1 1 5CBC1D07 P 6550 2950 F 0 "#PWR0112" H 6550 2700 50 0001 C CNN F 1 "GND" H 6555 2777 50 0000 C CNN F 2 "" H 6550 2950 50 0000 C CNN F 3 "" H 6550 2950 50 0000 C CNN 1 6550 2950 1 0 0 -1 $EndComp Wire Wire Line 6700 3100 6700 2950 Wire Wire Line 6700 2950 6550 2950 $Comp L power:+5V #PWR0113 U 1 1 5CBC1DDF P 6000 3400 F 0 "#PWR0113" H 6000 3250 50 0001 C CNN F 1 "+5V" H 6015 3573 50 0000 C CNN F 2 "" H 6000 3400 50 0000 C CNN F 3 "" H 6000 3400 50 0000 C CNN 1 6000 3400 1 0 0 -1 $EndComp Wire Wire Line 6000 3400 6700 3400 $Comp L device:C C3 U 1 1 5CBC1EC5 P 6000 3550 F 0 "C3" H 6115 3596 50 0000 L CNN F 1 "0.1uF" H 6115 3505 50 0000 L CNN F 2 "Capacitors_SMD:C_0805_HandSoldering" H 6038 3400 50 0001 C CNN F 3 "" H 6000 3550 50 0000 C CNN 1 6000 3550 1 0 0 -1 $EndComp Connection ~ 6000 3400 $Comp L power:GND #PWR0114 U 1 1 5CBC20A8 P 6000 3700 F 0 "#PWR0114" H 6000 3450 50 0001 C CNN F 1 "GND" H 6005 3527 50 0000 C CNN F 2 "" H 6000 3700 50 0000 C CNN F 3 "" H 6000 3700 50 0000 C CNN 1 6000 3700 1 0 0 -1 $EndComp Text Label 6350 3200 0 59 ~ 0 T- Text Label 6350 3300 0 59 ~ 0 T+ Wire Wire Line 5350 3200 5450 3200 Wire Wire Line 5550 3300 5550 3600 Wire Wire Line 5550 3600 5350 3600 Wire Wire Line 5550 3300 6700 3300 $Comp L device:Thermocouple TC1 U 1 1 5CBC268F P 5250 3300 F 0 "TC1" H 5052 3277 50 0000 R CNN F 1 "Thermocouple" H 5052 3368 50 0000 R CNN F 2 "Pin_Headers:Pin_Header_Straight_1x02" H 4675 3350 50 0001 C CNN F 3 "https://en.wikipedia.org/wiki/Thermocouple" H 4675 3350 50 0001 C CNN 1 5250 3300 1 0 0 1 $EndComp Wire Wire Line 5350 3400 5350 3600 $Comp L power:GND #PWR0115 U 1 1 5CBC2AD7 P 5550 3100 F 0 "#PWR0115" H 5550 2850 50 0001 C CNN F 1 "GND" H 5555 2927 50 0000 C CNN F 2 "" H 5550 3100 50 0000 C CNN F 3 "" H 5550 3100 50 0000 C CNN 1 5550 3100 1 0 0 -1 $EndComp Wire Wire Line 5450 3200 5450 3100 Wire Wire Line 5450 3100 5550 3100 Connection ~ 5450 3200 Wire Wire Line 5450 3200 6700 3200 Text Notes 3400 3350 0 39 ~ 0 WATCH POLARITY ON THERMOCOUPLE\nOnly negative side is grounded. Wire Wire Line 6700 3500 6400 3500 Wire Wire Line 6400 3500 6400 4300 Wire Wire Line 6400 4300 7300 4300 Wire Wire Line 6700 3600 6500 3600 Wire Wire Line 6500 3600 6500 4200 Wire Wire Line 6500 4200 7300 4200 Wire Wire Line 6700 3700 6600 3700 Wire Wire Line 6600 3700 6600 4100 Wire Wire Line 6600 4100 7300 4100 Text HLabel 7300 4300 2 39 Input ~ 0 MAX6675_SCK Text HLabel 7300 4200 2 39 Input ~ 0 MAX6675_CS Text HLabel 7300 4100 2 39 Input ~ 0 MAX6675_SO Wire Wire Line 6700 3800 6700 3950 Wire Wire Line 6700 3950 7300 3950 NoConn ~ 7500 3700 $Comp L conn:CONN_01X01 P12 U 1 1 5CBC3AC6 P 7500 3950 F 0 "P12" H 7578 3991 50 0000 L CNN F 1 "max6675_nc" H 7578 3900 50 0000 L CNN F 2 "Pin_Headers:Pin_Header_Straight_1x01" H 7500 3950 50 0001 C CNN F 3 "" H 7500 3950 50 0000 C CNN 1 7500 3950 1 0 0 -1 $EndComp Text Label 7250 3950 0 39 ~ 0 NC Text Notes 5050 2000 0 118 ~ 24 MAX6675 $EndSCHEMATC