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Electronics_Projects_2019/FlammableGasSensor/pcb/mainboard/gassensor.sch

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EESchema Schematic File Version 4
LIBS:gassensor-cache
EELAYER 26 0
EELAYER END
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F 2 "w_conn_misc:arduino_nano_header" H 5600 3250 60 0001 C CNN
F 3 "" H 5600 3250 60 0000 C CNN
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1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:Speaker-device LS1
U 1 1 5CC9FB90
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F 0 "LS1" H 5250 3100 50 0000 C CNN
F 1 "Speaker" H 5250 3200 50 0000 C CNN
F 2 "w_conn_mkds:mkds_1,5-2" H 4850 3050 50 0001 C CNN
F 3 "" H 4840 3200 50 0000 C CNN
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-1 0 0 1
$EndComp
$Comp
L gassensor-rescue:BARREL_JACK-conn CON1
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F 0 "CON1" H 3031 2475 50 0000 C CNN
F 1 "BARREL_JACK" H 3031 2384 50 0000 C CNN
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F 3 "" H 3050 2150 50 0000 C CNN
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1 0 0 -1
$EndComp
$Comp
L power:+12V #PWR0101
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$EndComp
$Comp
L power:GND #PWR0102
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$EndComp
Wire Wire Line
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$Comp
L gassensor-rescue:CONN_01X10-conn P1
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F 0 "P1" H 2077 3141 50 0000 L CNN
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F 3 "" H 1200 3650 50 0000 C CNN
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1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:R-device R1
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$Comp
L gassensor-rescue:C-device C1
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$EndComp
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L gassensor-rescue:C-device C2
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$Comp
L power:VCC #PWR0106
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$EndComp
$Comp
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$EndComp
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$Comp
L gassensor-rescue:LED-device D3
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F 0 "D3" H 8200 3050 50 0000 C CNN
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1 7900 3050
-1 0 0 1
$EndComp
$Comp
L gassensor-rescue:R-device R3
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F 2 "Capacitors_SMD:C_0805_HandSoldering" V 8130 3050 50 0001 C CNN
F 3 "" H 8200 3050 50 0000 C CNN
1 8200 3050
0 1 1 0
$EndComp
$Comp
L gassensor-rescue:D-device D4
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F 3 "" H 7900 3200 50 0000 C CNN
1 7900 3200
-1 0 0 1
$EndComp
$Comp
L gassensor-rescue:R-device R4
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F 3 "" H 8200 3200 50 0000 C CNN
1 8200 3200
0 1 1 0
$EndComp
$Comp
L gassensor-rescue:LED-device D5
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$EndComp
$Comp
L gassensor-rescue:R-device R5
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0 1 1 0
$EndComp
$Comp
L gassensor-rescue:D-device D6
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$EndComp
$Comp
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$EndComp
$Comp
L gassensor-rescue:LED-device D7
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$EndComp
$Comp
L gassensor-rescue:R-device R7
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$EndComp
$Comp
L gassensor-rescue:D-device D8
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$EndComp
$Comp
L gassensor-rescue:R-device R8
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1 8200 3800
0 1 1 0
$EndComp
$Comp
L gassensor-rescue:LED-device D9
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F 0 "D9" H 8200 3950 50 0000 C CNN
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$EndComp
$Comp
L gassensor-rescue:R-device R9
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$EndComp
$Comp
L gassensor-rescue:D-device D10
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$EndComp
$Comp
L gassensor-rescue:R-device R10
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$EndComp
$Comp
L power:GND #PWR0109
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$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L gassensor-rescue:LED-device D2
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$EndComp
$Comp
L gassensor-rescue:R-device R2
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F 3 "" H 7850 2150 50 0000 C CNN
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0 1 1 0
$EndComp
Wire Wire Line
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$Comp
L power:GND #PWR0110
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$EndComp
$Comp
L power:VCC #PWR0111
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$EndComp
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VSenseOut
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$Comp
L power:+5V #PWR0114
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1 6600 2850
1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:CONN_01X01-conn P4
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F 3 "" H 6150 3750 50 0000 C CNN
1 6150 3750
1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:CONN_01X01-conn P3
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F 1 "RST_brkout" H 4969 2616 50 0000 C CNN
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F 3 "" H 5050 2750 50 0000 C CNN
1 5050 2750
-1 0 0 1
$EndComp
$Comp
L gassensor-rescue:CONN_01X04-conn P8
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F 3 "" H 3650 3500 50 0000 C CNN
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$EndComp
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$Comp
L gassensor-rescue:CONN_01X02-conn P7
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F 3 "" H 3250 2800 50 0000 C CNN
1 3250 2800
1 0 0 -1
$EndComp
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$Comp
L gassensor-rescue:CONN_01X03-conn P6
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$EndComp
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$Comp
L gassensor-rescue:R-device R13
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F 3 "" H 4000 4950 50 0000 C CNN
1 4000 4950
1 0 0 -1
$EndComp
Connection ~ 4000 4800
Wire Wire Line
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$Comp
L gassensor-rescue:POT-device RV2
U 1 1 5CCBB715
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F 0 "RV2" H 3930 5296 50 0000 R CNN
F 1 "1M" H 3930 5205 50 0000 R CNN
F 2 "pot:Potentiometer_Vishay_TS53YL_Vertical" H 4000 5250 50 0001 C CNN
F 3 "" H 4000 5250 50 0000 C CNN
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$EndComp
$Comp
L power:GND #PWR0117
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F 3 "" H 4150 5250 50 0000 C CNN
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$EndComp
$Comp
L gassensor-rescue:CONN_01X04-conn P9
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F 0 "P9" H 5628 5891 50 0000 L CNN
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F 3 "" H 5550 5850 50 0000 C CNN
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1 0 0 -1
$EndComp
Wire Wire Line
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$Comp
L power:GND #PWR0118
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$EndComp
Wire Wire Line
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Wire Wire Line
5350 6250 5750 6250
Text Label 5750 6250 0 50 ~ 0
VSenseOut
Text Label 5000 5800 0 50 ~ 0
VccSense
Wire Wire Line
4800 5800 5350 5800
$Comp
L power:+5V #PWR0119
U 1 1 5CCBE228
P 4800 5800
F 0 "#PWR0119" H 4800 5650 50 0001 C CNN
F 1 "+5V" H 4815 5973 50 0000 C CNN
F 2 "" H 4800 5800 50 0000 C CNN
F 3 "" H 4800 5800 50 0000 C CNN
1 4800 5800
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR0113
U 1 1 5CCADAEA
P 3300 4350
F 0 "#PWR0113" H 3300 4200 50 0001 C CNN
F 1 "+5V" H 3315 4523 50 0000 C CNN
F 2 "" H 3300 4350 50 0000 C CNN
F 3 "" H 3300 4350 50 0000 C CNN
1 3300 4350
1 0 0 -1
$EndComp
Wire Wire Line
3300 4350 3850 4350
Text Label 3500 4350 0 50 ~ 0
VccSense
Wire Wire Line
3850 4550 3850 4800
Text Label 3500 4250 0 50 ~ 0
VOUT+
Wire Wire Line
3850 4250 3500 4250
$Comp
L power:GND #PWR0112
U 1 1 5CCAA94B
P 3500 4450
F 0 "#PWR0112" H 3500 4200 50 0001 C CNN
F 1 "GND" H 3505 4277 50 0000 C CNN
F 2 "" H 3500 4450 50 0000 C CNN
F 3 "" H 3500 4450 50 0000 C CNN
1 3500 4450
1 0 0 -1
$EndComp
Wire Wire Line
3850 4450 3500 4450
$Comp
L gassensor-rescue:CONN_01X04-conn P2
U 1 1 5CCA9BE8
P 4050 4400
F 0 "P2" H 4127 4441 50 0000 L CNN
F 1 "GasSensor" H 4127 4350 50 0000 L CNN
F 2 "w_conn_mkds:mkds_1,5-4" H 4050 4400 50 0001 C CNN
F 3 "" H 4050 4400 50 0000 C CNN
1 4050 4400
1 0 0 -1
$EndComp
Wire Wire Line
8350 4100 8350 4550
$Comp
L gassensor-rescue:Mounting_Hole-mechanical MK4
U 1 1 5CCC47B4
P 7050 5500
F 0 "MK4" H 7150 5546 50 0000 L CNN
F 1 "Mounting_Hole" H 7150 5455 50 0000 L CNN
F 2 "Mounting_Holes:MountingHole_5.3mm_M5" H 7050 5500 60 0001 C CNN
F 3 "" H 7050 5500 60 0001 C CNN
1 7050 5500
1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:Mounting_Hole-mechanical MK3
U 1 1 5CCC48EE
P 7050 5250
F 0 "MK3" H 7150 5296 50 0000 L CNN
F 1 "Mounting_Hole" H 7150 5205 50 0000 L CNN
F 2 "Mounting_Holes:MountingHole_5.3mm_M5" H 7050 5250 60 0001 C CNN
F 3 "" H 7050 5250 60 0001 C CNN
1 7050 5250
1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:Mounting_Hole-mechanical MK2
U 1 1 5CCC4A58
P 7050 5000
F 0 "MK2" H 7150 5046 50 0000 L CNN
F 1 "Mounting_Hole" H 7150 4955 50 0000 L CNN
F 2 "Mounting_Holes:MountingHole_5.3mm_M5" H 7050 5000 60 0001 C CNN
F 3 "" H 7050 5000 60 0001 C CNN
1 7050 5000
1 0 0 -1
$EndComp
$Comp
L gassensor-rescue:Mounting_Hole-mechanical MK1
U 1 1 5CCC4B04
P 7050 4750
F 0 "MK1" H 7150 4796 50 0000 L CNN
F 1 "Mounting_Hole" H 7150 4705 50 0000 L CNN
F 2 "Mounting_Holes:MountingHole_5.3mm_M5" H 7050 4750 60 0001 C CNN
F 3 "" H 7050 4750 60 0001 C CNN
1 7050 4750
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0115
U 1 1 5CCC61F2
P 1600 4800
F 0 "#PWR0115" H 1600 4550 50 0001 C CNN
F 1 "GND" H 1605 4627 50 0000 C CNN
F 2 "" H 1600 4800 50 0000 C CNN
F 3 "" H 1600 4800 50 0000 C CNN
1 1600 4800
1 0 0 -1
$EndComp
Text Notes 4000 1150 0 157 ~ 31
Flammable Gas Sensor
Wire Wire Line
5950 3050 6200 3050
Text Label 6200 3050 0 50 ~ 0
VSenseOut
Text Label 7750 3950 2 50 ~ 0
D7
Text Label 7750 4100 2 50 ~ 0
D8
Text Notes 2400 5900 0 50 ~ 0
It's generally\nrecommended to use\na small potentiometer\nwith a large static R resistor.\nOr use no pot at all.\n(and instead use an\naccurate resistor, say .1%)\nAfter a good known\nvalue of resistance is found,\nthis should be changed.
Wire Wire Line
5250 3250 5050 3250
Wire Wire Line
5050 3450 4800 3450
Wire Wire Line
5050 3150 5050 3450
$Comp
L power:GND #PWR?
U 1 1 5D64D82D
P 4800 3450
F 0 "#PWR?" H 4800 3200 50 0001 C CNN
F 1 "GND" H 4805 3277 50 0000 C CNN
F 2 "" H 4800 3450 50 0001 C CNN
F 3 "" H 4800 3450 50 0001 C CNN
1 4800 3450
1 0 0 -1
$EndComp
$EndSCHEMATC