EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	5850 2900 6000 2900
Wire Wire Line
	6000 4450 4850 4450
Wire Wire Line
	4850 4450 4850 2900
Wire Wire Line
	4850 2900 5050 2900
$Comp
L Connector:TestPoint P2
U 1 1 61C1596A
P 6000 2800
F 0 "P2" H 6058 2918 50  0000 L CNN
F 1 "Probe-" H 6058 2827 50  0000 L CNN
F 2 "TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm" H 6200 2800 50  0001 C CNN
F 3 "~" H 6200 2800 50  0001 C CNN
	1    6000 2800
	1    0    0    -1  
$EndComp
$Comp
L Device:R_US R2
U 1 1 61C5038A
P 7200 3850
F 0 "R2" H 7268 3896 50  0000 L CNN
F 1 "10k" H 7268 3805 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 7240 3840 50  0001 C CNN
F 3 "~" H 7200 3850 50  0001 C CNN
	1    7200 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	6000 2900 6000 4450
$Comp
L MCU_Module:WeMos_D1_mini U1
U 1 1 61BD6AFB
P 5450 3300
F 0 "U1" H 5450 2411 50  0000 C CNN
F 1 "WeMos_D1_mini" H 5450 2320 50  0000 C CNN
F 2 "Module:WEMOS_D1_mini_light" H 5450 2150 50  0001 C CNN
F 3 "https://wiki.wemos.cc/products:d1:d1_mini#documentation" H 3600 2150 50  0001 C CNN
	1    5450 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:R_US R3
U 1 1 61C83749
P 7450 3150
F 0 "R3" V 7245 3150 50  0000 C CNN
F 1 "10k" V 7336 3150 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 7490 3140 50  0001 C CNN
F 3 "~" H 7450 3150 50  0001 C CNN
	1    7450 3150
	0    1    1    0   
$EndComp
Wire Wire Line
	5850 2800 6000 2800
$Comp
L power:GND #PWR0101
U 1 1 61CB047C
P 7200 4000
F 0 "#PWR0101" H 7200 3750 50  0001 C CNN
F 1 "GND" H 7205 3827 50  0000 C CNN
F 2 "" H 7200 4000 50  0001 C CNN
F 3 "" H 7200 4000 50  0001 C CNN
	1    7200 4000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0102
U 1 1 61CB1006
P 5850 4100
F 0 "#PWR0102" H 5850 3850 50  0001 C CNN
F 1 "GND" H 5855 3927 50  0000 C CNN
F 2 "" H 5850 4100 50  0001 C CNN
F 3 "" H 5850 4100 50  0001 C CNN
	1    5850 4100
	1    0    0    -1  
$EndComp
$Comp
L Transistor_BJT:2N3904 Q3
U 1 1 61C60A18
P 6400 4050
F 0 "Q3" V 6728 4050 50  0000 C CNN
F 1 "2N3904" V 6637 4050 50  0000 C CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 6600 3975 50  0001 L CIN
F 3 "https://www.fairchildsemi.com/datasheets/2N/2N3904.pdf" H 6400 4050 50  0001 L CNN
	1    6400 4050
	1    0    0    1   
$EndComp
$Comp
L Connector:TestPoint P1
U 1 1 61C14F83
P 6500 3850
F 0 "P1" H 6442 3876 50  0000 R CNN
F 1 "Probe+" H 6442 3967 50  0000 R CNN
F 2 "TestPoint:TestPoint_Loop_D2.50mm_Drill1.0mm" H 6700 3850 50  0001 C CNN
F 3 "~" H 6700 3850 50  0001 C CNN
	1    6500 3850
	-1   0    0    -1  
$EndComp
$Comp
L Device:R_US R1
U 1 1 61BE30C8
P 6650 2800
F 0 "R1" H 6582 2754 50  0000 R CNN
F 1 "270k" H 6582 2845 50  0000 R CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 6690 2790 50  0001 C CNN
F 3 "~" H 6650 2800 50  0001 C CNN
	1    6650 2800
	0    1    1    0   
$EndComp
Wire Wire Line
	5850 3700 6200 3700
Wire Wire Line
	6200 3700 6200 4050
$Comp
L Transistor_BJT:2N3906 Q2
U 1 1 61BDC645
P 7200 2900
F 0 "Q2" V 7528 2900 50  0000 C CNN
F 1 "2N3906" V 7437 2900 50  0000 C CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 7400 2825 50  0001 L CIN
F 3 "https://www.fairchildsemi.com/datasheets/2N/2N3904.pdf" H 7200 2900 50  0001 L CNN
	1    7200 2900
	0    -1   -1   0   
$EndComp
$Comp
L Transistor_BJT:2N3904 Q1
U 1 1 61BE1FBE
P 7100 3500
F 0 "Q1" V 7428 3500 50  0000 C CNN
F 1 "2N3904" V 7337 3500 50  0000 C CNN
F 2 "Package_TO_SOT_THT:TO-92_Inline_Wide" H 7300 3425 50  0001 L CIN
F 3 "https://www.fairchildsemi.com/datasheets/2N/2N3904.pdf" H 7100 3500 50  0001 L CNN
	1    7100 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	6900 3500 5850 3500
Wire Wire Line
	7400 2800 7650 2800
Connection ~ 6000 2800
Wire Wire Line
	7200 3100 7200 3150
Wire Wire Line
	7650 2800 7650 3150
Wire Wire Line
	7650 3150 7600 3150
Wire Wire Line
	7300 3150 7200 3150
Wire Wire Line
	7200 3300 7200 3150
Connection ~ 7200 3150
Wire Wire Line
	5450 4100 5850 4100
Wire Wire Line
	4700 2500 4700 4600
Wire Wire Line
	4700 4600 7650 4600
Wire Wire Line
	7650 4600 7650 3150
Connection ~ 7650 3150
Wire Wire Line
	4550 4750 6500 4750
Wire Wire Line
	6500 4750 6500 4250
Wire Wire Line
	6500 2800 6000 2800
Wire Wire Line
	6800 2800 7000 2800
Wire Wire Line
	4700 2500 5350 2500
$Comp
L power:+6V #PWR0103
U 1 1 61DA1BEE
P 5350 2500
F 0 "#PWR0103" H 5350 2350 50  0001 C CNN
F 1 "+6V" H 5365 2673 50  0000 C CNN
F 2 "" H 5350 2500 50  0001 C CNN
F 3 "" H 5350 2500 50  0001 C CNN
	1    5350 2500
	1    0    0    -1  
$EndComp
Connection ~ 5350 2500
Wire Wire Line
	5550 2250 4550 2250
Wire Wire Line
	5550 2250 5550 2500
Wire Wire Line
	4550 2250 4550 4750
$EndSCHEMATC