uCurrent Meter.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "uCurrent Meter [HX711]"
Date "2020-11-10"
Rev "1.0"
Comp "MPro"
Comment1 ""
Comment2 ""
Comment3 "Copyright © 2020 by Michal Protasowicki"
Comment4 "Licensed under CERN-OHL-P v2 or later"
$EndDescr
$Comp
L archive:uCurrent-Meter-rescue_ARDUINO-PRO-MINI-3.3V-diy-modules-uCurrent-Meter-rescue M1
U 1 1 5C91316F
P 7600 2900
F 0 "M1" H 7100 4050 45  0000 L CNN
F 1 "ARDUINO-PRO-MINI-5V" H 7100 1700 45  0000 L CNN
F 2 "HX711:diy-modules-ARDUINO-PRO-MINI" H 7630 3050 20  0001 C CNN
F 3 "" H 7600 2900 60  0000 C CNN
	1    7600 2900
	1    0    0    -1  
$EndComp
$Comp
L archive:Connector_TestPoint J3
U 1 1 5C93D4C6
P 6050 5300
F 0 "J3" V 6150 5400 50  0000 L CNN
F 1 "IN+" V 6050 5550 50  0000 L CNN
F 2 "HX711:MountingHole_2.2mm_M2_Pad" H 6250 5300 50  0001 C CNN
F 3 "~" H 6250 5300 50  0001 C CNN
	1    6050 5300
	0    -1   -1   0   
$EndComp
$Comp
L archive:Isolator_HCPL2731 U1
U 1 1 5C950AAB
P 3550 2700
F 0 "U1" H 3350 3100 50  0000 L CNN
F 1 "HCPL0731" H 3350 2300 50  0000 L CNN
F 2 "HX711:SO-8_5.3x6.2mm_Pitch1.27mm" H 3525 2700 50  0001 C CNN
F 3 "http://www.onsemi.com/pub/Collateral/HCPL2731-D.pdf" H 3525 2700 50  0001 C CNN
	1    3550 2700
	1    0    0    -1  
$EndComp
$Comp
L archive:power_Earth #PWR017
U 1 1 5C950D34
P 2850 4900
F 0 "#PWR017" H 2850 4650 50  0001 C CNN
F 1 "Earth" H 2850 4750 50  0001 C CNN
F 2 "" H 2850 4900 50  0001 C CNN
F 3 "~" H 2850 4900 50  0001 C CNN
	1    2850 4900
	1    0    0    -1  
$EndComp
$Comp
L archive:Isolator_HCPL2731 U2
U 1 1 5C950DD7
P 3550 3750
F 0 "U2" H 3650 4150 50  0000 L CNN
F 1 "HCPL0731" H 3350 3350 50  0000 L CNN
F 2 "HX711:SO-8_5.3x6.2mm_Pitch1.27mm" H 3525 3750 50  0001 C CNN
F 3 "http://www.onsemi.com/pub/Collateral/HCPL2731-D.pdf" H 3525 3750 50  0001 C CNN
	1    3550 3750
	-1   0    0    -1  
$EndComp
Text GLabel 4350 3850 2    50   Input ~ 0
TXD
Text GLabel 4600 2900 2    50   Output ~ 0
RXD
Text GLabel 4600 2500 2    50   Output ~ 0
DTR
$Comp
L archive:power_+5V #PWR016
U 1 1 5C95147F
P 4550 4500
F 0 "#PWR016" H 4550 4350 50  0001 C CNN
F 1 "+5V" H 4565 4673 50  0000 C CNN
F 2 "" H 4550 4500 50  0001 C CNN
F 3 "" H 4550 4500 50  0001 C CNN
	1    4550 4500
	1    0    0    -1  
$EndComp
$Comp
L archive:power_Earth #PWR014
U 1 1 5C951546
P 3000 4100
F 0 "#PWR014" H 3000 3850 50  0001 C CNN
F 1 "Earth" H 3000 3950 50  0001 C CNN
F 2 "" H 3000 4100 50  0001 C CNN
F 3 "~" H 3000 4100 50  0001 C CNN
	1    3000 4100
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_R R7
U 1 1 5C95184F
P 2650 3700
F 0 "R7" H 2720 3746 50  0000 L CNN
F 1 "4k7" H 2720 3655 50  0000 L CNN
F 2 "HX711:R_1206" V 2580 3700 50  0001 C CNN
F 3 "~" H 2650 3700 50  0001 C CNN
	1    2650 3700
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_R R8
U 1 1 5C951B0C
P 4100 4050
F 0 "R8" V 4200 4050 50  0000 C CNN
F 1 "1k" V 4000 4050 50  0000 C CNN
F 2 "HX711:R_1206" V 4030 4050 50  0001 C CNN
F 3 "~" H 4100 4050 50  0001 C CNN
	1    4100 4050
	0    -1   -1   0   
$EndComp
$Comp
L archive:power_VCC #PWR015
U 1 1 5C951CD5
P 2850 4500
F 0 "#PWR015" H 2850 4350 50  0001 C CNN
F 1 "VCC" H 2867 4673 50  0000 C CNN
F 2 "" H 2850 4500 50  0001 C CNN
F 3 "" H 2850 4500 50  0001 C CNN
	1    2850 4500
	1    0    0    -1  
$EndComp
$Comp
L archive:power_VCC #PWR011
U 1 1 5C951D5F
P 2600 3450
F 0 "#PWR011" H 2600 3300 50  0001 C CNN
F 1 "VCC" V 2618 3577 50  0000 L CNN
F 2 "" H 2600 3450 50  0001 C CNN
F 3 "" H 2600 3450 50  0001 C CNN
	1    2600 3450
	0    -1   -1   0   
$EndComp
$Comp
L archive:power_VCC #PWR05
U 1 1 5C951DB2
P 2750 2400
F 0 "#PWR05" H 2750 2250 50  0001 C CNN
F 1 "VCC" V 2768 2527 50  0000 L CNN
F 2 "" H 2750 2400 50  0001 C CNN
F 3 "" H 2750 2400 50  0001 C CNN
	1    2750 2400
	0    -1   -1   0   
$EndComp
$Comp
L archive:power_+5V #PWR013
U 1 1 5C951E1D
P 4350 4050
F 0 "#PWR013" H 4350 3900 50  0001 C CNN
F 1 "+5V" V 4365 4178 50  0000 L CNN
F 2 "" H 4350 4050 50  0001 C CNN
F 3 "" H 4350 4050 50  0001 C CNN
	1    4350 4050
	0    1    1    0   
$EndComp
Wire Wire Line
	2050 4450 2250 4450
Wire Wire Line
	2050 4250 2100 4250
$Comp
L archive:Device_R R6
U 1 1 5C9527B0
P 2650 3200
F 0 "R6" H 2720 3246 50  0000 L CNN
F 1 "1k" H 2720 3155 50  0000 L CNN
F 2 "HX711:R_1206" V 2580 3200 50  0001 C CNN
F 3 "~" H 2650 3200 50  0001 C CNN
	1    2650 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	2650 3350 2650 3450
Connection ~ 2650 3450
Wire Wire Line
	2650 3450 2600 3450
Wire Wire Line
	2650 3450 2650 3550
Wire Wire Line
	2650 3000 2650 3050
Wire Wire Line
	3950 4050 3850 4050
Wire Wire Line
	4250 4050 4350 4050
$Comp
L archive:power_+5V #PWR04
U 1 1 5C9567A4
P 4100 2050
F 0 "#PWR04" H 4100 1900 50  0001 C CNN
F 1 "+5V" H 4115 2223 50  0000 C CNN
F 2 "" H 4100 2050 50  0001 C CNN
F 3 "" H 4100 2050 50  0001 C CNN
	1    4100 2050
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_R R4
U 1 1 5C956FA2
P 3000 2400
F 0 "R4" V 2793 2400 50  0000 C CNN
F 1 "1k" V 2884 2400 50  0000 C CNN
F 2 "HX711:R_1206" V 2930 2400 50  0001 C CNN
F 3 "~" H 3000 2400 50  0001 C CNN
	1    3000 2400
	0    1    1    0   
$EndComp
Wire Wire Line
	2750 2400 2850 2400
Wire Wire Line
	3150 2400 3250 2400
$Comp
L archive:Device_R R3
U 1 1 5C957A53
P 4100 2300
F 0 "R3" H 4170 2346 50  0000 L CNN
F 1 "4k7" H 4170 2255 50  0000 L CNN
F 2 "HX711:R_1206" V 4030 2300 50  0001 C CNN
F 3 "~" H 4100 2300 50  0001 C CNN
	1    4100 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 2850 4300 2900
Wire Wire Line
	4300 2900 4600 2900
Wire Wire Line
	3900 2100 3900 2400
Wire Wire Line
	3900 2400 3850 2400
Wire Wire Line
	2250 4450 2250 2800
Wire Wire Line
	2100 2600 2100 4250
$Comp
L archive:Device_R R5
U 1 1 5C95E3C3
P 4300 2700
F 0 "R5" H 4370 2746 50  0000 L CNN
F 1 "4k7" H 4370 2655 50  0000 L CNN
F 2 "HX711:R_1206" V 4230 2700 50  0001 C CNN
F 3 "~" H 4300 2700 50  0001 C CNN
	1    4300 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	4350 3850 3850 3850
$Comp
L archive:Device_C C3
U 1 1 5C95ED90
P 4100 4700
F 0 "C3" H 4215 4746 50  0000 L CNN
F 1 "100n" H 4215 4655 50  0000 L CNN
F 2 "HX711:C_1206" H 4138 4550 50  0001 C CNN
F 3 "~" H 4100 4700 50  0001 C CNN
	1    4100 4700
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_C C4
U 1 1 5C95EF58
P 4550 4700
F 0 "C4" H 4665 4746 50  0000 L CNN
F 1 "47u" H 4665 4655 50  0000 L CNN
F 2 "HX711:C_1206" H 4588 4550 50  0001 C CNN
F 3 "~" H 4550 4700 50  0001 C CNN
	1    4550 4700
	1    0    0    -1  
$EndComp
$Comp
L archive:power_GND #PWR018
U 1 1 5C95F07C
P 4550 4900
F 0 "#PWR018" H 4550 4650 50  0001 C CNN
F 1 "GND" H 4555 4727 50  0000 C CNN
F 2 "" H 4550 4900 50  0001 C CNN
F 3 "" H 4550 4900 50  0001 C CNN
	1    4550 4900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4550 4900 4550 4850
Wire Wire Line
	4550 4850 4100 4850
Connection ~ 4550 4850
Connection ~ 4100 4850
Wire Wire Line
	4100 4850 4000 4850
Wire Wire Line
	4000 4550 4100 4550
Connection ~ 4100 4550
Wire Wire Line
	4100 4550 4550 4550
Wire Wire Line
	4550 4550 4550 4500
Connection ~ 4550 4550
$Comp
L archive:power_GND #PWR012
U 1 1 5C961503
P 8350 3950
F 0 "#PWR012" H 8350 3700 50  0001 C CNN
F 1 "GND" H 8355 3777 50  0000 C CNN
F 2 "" H 8350 3950 50  0001 C CNN
F 3 "" H 8350 3950 50  0001 C CNN
	1    8350 3950
	1    0    0    -1  
$EndComp
Text GLabel 7550 1500 1    50   Input ~ 0
RXD
Text GLabel 7450 1500 1    50   Output ~ 0
TXD
Text GLabel 7350 1500 1    50   Input ~ 0
DTR
Wire Wire Line
	7350 1600 7350 1500
Wire Wire Line
	7450 1600 7450 1500
Wire Wire Line
	7550 1600 7550 1500
$Comp
L archive:Device_C C2
U 1 1 5C9678A7
P 3000 3700
F 0 "C2" H 2885 3654 50  0000 R CNN
F 1 "100n" H 2885 3745 50  0000 R CNN
F 2 "HX711:C_1206" H 3038 3550 50  0001 C CNN
F 3 "~" H 3000 3700 50  0001 C CNN
	1    3000 3700
	-1   0    0    1   
$EndComp
Wire Wire Line
	2650 3850 2650 3950
Wire Wire Line
	3250 3950 2650 3950
Connection ~ 2650 3950
Wire Wire Line
	2650 3950 2650 4350
Wire Wire Line
	2650 4350 2050 4350
Wire Wire Line
	3250 3450 3000 3450
Wire Wire Line
	3000 3550 3000 3450
Connection ~ 3000 3450
Wire Wire Line
	3000 3450 2650 3450
Wire Wire Line
	3000 3850 3000 4050
Wire Wire Line
	3250 4050 3000 4050
Connection ~ 3000 4050
Wire Wire Line
	3000 4050 3000 4100
Wire Wire Line
	3250 3000 2650 3000
Wire Wire Line
	3250 2800 2250 2800
Wire Wire Line
	3250 2600 2100 2600
$Comp
L archive:power_GND #PWR09
U 1 1 5C978EF1
P 3900 3050
F 0 "#PWR09" H 3900 2800 50  0001 C CNN
F 1 "GND" H 3905 2877 50  0000 C CNN
F 2 "" H 3900 3050 50  0001 C CNN
F 3 "" H 3900 3050 50  0001 C CNN
	1    3900 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	3850 3000 3900 3000
Wire Wire Line
	3900 3000 3900 3050
Wire Wire Line
	2050 4550 2850 4550
Wire Wire Line
	2850 4550 2850 4500
Connection ~ 2850 4550
Wire Wire Line
	2850 4550 3100 4550
Wire Wire Line
	2850 4650 2850 4850
Wire Wire Line
	3100 4850 2850 4850
Connection ~ 2850 4850
Wire Wire Line
	2850 4850 2850 4900
Wire Wire Line
	2850 4650 2050 4650
$Comp
L archive:Device_C C1
U 1 1 5C97D6E1
P 3900 2700
F 0 "C1" H 3785 2654 50  0000 R CNN
F 1 "100n" H 3785 2745 50  0000 R CNN
F 2 "HX711:C_1206" H 3938 2550 50  0001 C CNN
F 3 "~" H 3900 2700 50  0001 C CNN
	1    3900 2700
	-1   0    0    1   
$EndComp
Wire Wire Line
	4600 2500 4100 2500
Wire Wire Line
	4100 2450 4100 2500
Connection ~ 4100 2500
Wire Wire Line
	4100 2500 3850 2500
Wire Wire Line
	3900 2400 3900 2550
Connection ~ 3900 2400
Wire Wire Line
	3900 2850 3900 3000
Connection ~ 3900 3000
Wire Wire Line
	3900 2100 4100 2100
Wire Wire Line
	4300 2100 4300 2550
Wire Wire Line
	4100 2150 4100 2100
Connection ~ 4100 2100
Wire Wire Line
	4100 2100 4300 2100
Wire Wire Line
	4100 2100 4100 2050
Wire Wire Line
	4300 2900 3850 2900
Connection ~ 4300 2900
$Comp
L archive:Switch_SW_Push SW1
U 1 1 5C953A5E
P 6100 2500
F 0 "SW1" H 6100 2785 50  0000 C CNN
F 1 "ENTER" H 6100 2694 50  0000 C CNN
F 2 "HX711:SW_SPST_PTS645" H 6100 2700 50  0001 C CNN
F 3 "" H 6100 2700 50  0001 C CNN
	1    6100 2500
	1    0    0    -1  
$EndComp
$Comp
L archive:Switch_SW_Push SW2
U 1 1 5C953AFD
P 6100 2900
F 0 "SW2" H 6100 3185 50  0000 C CNN
F 1 "DOWN" H 6100 3094 50  0000 C CNN
F 2 "HX711:SW_SPST_PTS645" H 6100 3100 50  0001 C CNN
F 3 "" H 6100 3100 50  0001 C CNN
	1    6100 2900
	1    0    0    -1  
$EndComp
$Comp
L archive:Switch_SW_Push SW3
U 1 1 5C953B4D
P 6100 3300
F 0 "SW3" H 6100 3585 50  0000 C CNN
F 1 "UP" H 6100 3494 50  0000 C CNN
F 2 "HX711:SW_SPST_PTS645" H 6100 3500 50  0001 C CNN
F 3 "" H 6100 3500 50  0001 C CNN
	1    6100 3300
	1    0    0    -1  
$EndComp
$Comp
L archive:power_GND #PWR010
U 1 1 5C953C13
P 5850 3350
F 0 "#PWR010" H 5850 3100 50  0001 C CNN
F 1 "GND" H 5855 3177 50  0000 C CNN
F 2 "" H 5850 3350 50  0001 C CNN
F 3 "" H 5850 3350 50  0001 C CNN
	1    5850 3350
	1    0    0    -1  
$EndComp
Wire Wire Line
	5900 2500 5850 2500
Wire Wire Line
	5850 2500 5850 2900
Wire Wire Line
	5900 3300 5850 3300
Connection ~ 5850 3300
Wire Wire Line
	5850 3300 5850 3350
Wire Wire Line
	5900 2900 5850 2900
Connection ~ 5850 2900
Wire Wire Line
	5850 2900 5850 3300
$Comp
L archive:Device_R R10
U 1 1 5C95C86F
P 7350 4900
F 0 "R10" V 7450 4900 50  0000 C CNN
F 1 "1k" V 7250 4900 50  0000 C CNN
F 2 "HX711:R_1206" V 7280 4900 50  0001 C CNN
F 3 "~" H 7350 4900 50  0001 C CNN
	1    7350 4900
	0    -1   -1   0   
$EndComp
$Comp
L archive:Device_R R9
U 1 1 5C95CA99
P 6950 4900
F 0 "R9" V 7050 4900 50  0000 C CNN
F 1 "1k" V 6850 4900 50  0000 C CNN
F 2 "HX711:R_1206" V 6880 4900 50  0001 C CNN
F 3 "~" H 6950 4900 50  0001 C CNN
	1    6950 4900
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6800 4900 6750 4900
Wire Wire Line
	6750 4900 6750 5400
Wire Wire Line
	6750 5400 7600 5400
Wire Wire Line
	7600 5100 7550 5100
Wire Wire Line
	7550 5100 7550 4900
Wire Wire Line
	7550 4900 7500 4900
Wire Wire Line
	7200 4900 7150 4900
Wire Wire Line
	7150 4900 7150 5300
Wire Wire Line
	7150 5300 7600 5300
Connection ~ 7150 4900
Wire Wire Line
	7150 4900 7100 4900
Wire Wire Line
	7150 5300 7150 5500
Wire Wire Line
	7150 5500 7600 5500
Connection ~ 7150 5300
$Comp
L archive:Connector_TestPoint J2
U 1 1 5C96A517
P 6050 4900
F 0 "J2" V 6150 5000 50  0000 L CNN
F 1 "INA-" V 6050 5100 50  0000 L CNN
F 2 "HX711:MountingHole_2.2mm_M2_Pad" H 6250 4900 50  0001 C CNN
F 3 "~" H 6250 4900 50  0001 C CNN
	1    6050 4900
	0    -1   -1   0   
$EndComp
$Comp
L archive:Connector_TestPoint J4
U 1 1 5C96A567
P 6050 5700
F 0 "J4" V 6150 5800 50  0000 L CNN
F 1 "INB-" V 6050 5900 50  0000 L CNN
F 2 "HX711:MountingHole_2.2mm_M2_Pad" H 6250 5700 50  0001 C CNN
F 3 "~" H 6250 5700 50  0001 C CNN
	1    6050 5700
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6600 5200 7600 5200
$Comp
L archive:Device_R R11
U 1 1 5C970C5C
P 6300 5100
F 0 "R11" H 6370 5146 50  0000 L CNN
F 1 "1R" H 6370 5055 50  0000 L CNN
F 2 "HX711:R_2512_HandSoldering" V 6230 5100 50  0001 C CNN
F 3 "~" H 6300 5100 50  0001 C CNN
	1    6300 5100
	1    0    0    -1  
$EndComp
Wire Wire Line
	6050 4900 6300 4900
Wire Wire Line
	6600 4900 6600 5200
Wire Wire Line
	6300 4950 6300 4900
Connection ~ 6300 4900
Wire Wire Line
	6300 4900 6600 4900
Wire Wire Line
	6050 5300 6300 5300
Wire Wire Line
	6300 5250 6300 5300
Connection ~ 6300 5300
Wire Wire Line
	6300 5300 7150 5300
$Comp
L archive:Device_R R12
U 1 1 5C979823
P 6300 5500
F 0 "R12" H 6370 5546 50  0000 L CNN
F 1 "0R4" H 6370 5455 50  0000 L CNN
F 2 "HX711:R_2512_HandSoldering" V 6230 5500 50  0001 C CNN
F 3 "~" H 6300 5500 50  0001 C CNN
	1    6300 5500
	1    0    0    -1  
$EndComp
Wire Wire Line
	6300 5650 6300 5700
Connection ~ 6300 5700
Wire Wire Line
	6300 5700 6050 5700
Wire Wire Line
	6300 5350 6300 5300
$Comp
L archive:power_GND #PWR020
U 1 1 5C985A9A
P 8800 5550
F 0 "#PWR020" H 8800 5300 50  0001 C CNN
F 1 "GND" H 8805 5377 50  0000 C CNN
F 2 "" H 8800 5550 50  0001 C CNN
F 3 "" H 8800 5550 50  0001 C CNN
	1    8800 5550
	1    0    0    -1  
$EndComp
$Comp
L archive:power_+5V #PWR019
U 1 1 5C98819D
P 8800 5150
F 0 "#PWR019" H 8800 5000 50  0001 C CNN
F 1 "+5V" H 8815 5323 50  0000 C CNN
F 2 "" H 8800 5150 50  0001 C CNN
F 3 "" H 8800 5150 50  0001 C CNN
	1    8800 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	8750 5200 8800 5200
Wire Wire Line
	8800 5200 8800 5150
Wire Wire Line
	8750 5500 8800 5500
Wire Wire Line
	8800 5500 8800 5550
Text GLabel 8850 5300 2    50   Output ~ 0
DOut
Text GLabel 8850 5400 2    50   Input ~ 0
CLK 
Wire Wire Line
	8850 5300 8750 5300
Wire Wire Line
	8750 5400 8850 5400
Text GLabel 6800 3500 0    50   Input ~ 0
DOut
Wire Wire Line
	6800 3500 6900 3500
Wire Wire Line
	6800 3400 6900 3400
Text GLabel 6800 3400 0    50   Output ~ 0
CLK 
$Comp
L archive:power_GND #PWR06
U 1 1 5C9A5FB5
P 8400 2500
F 0 "#PWR06" H 8400 2250 50  0001 C CNN
F 1 "GND" V 8400 2300 50  0000 C CNN
F 2 "" H 8400 2500 50  0001 C CNN
F 3 "" H 8400 2500 50  0001 C CNN
	1    8400 2500
	0    -1   -1   0   
$EndComp
$Comp
L archive:power_GND #PWR07
U 1 1 5C9A60C6
P 6800 2700
F 0 "#PWR07" H 6800 2450 50  0001 C CNN
F 1 "GND" V 6800 2500 50  0000 C CNN
F 2 "" H 6800 2700 50  0001 C CNN
F 3 "" H 6800 2700 50  0001 C CNN
	1    6800 2700
	0    1    1    0   
$EndComp
Wire Wire Line
	8400 2500 8300 2500
Wire Wire Line
	6800 2700 6900 2700
$Comp
L archive:Connector_Generic_Conn_01x04 J1
U 1 1 5C9B4FA6
P 9650 2000
F 0 "J1" H 9600 2200 50  0000 L CNN
F 1 "OLED 128x32 Display" H 9600 1700 50  0000 L CNN
F 2 "HX711:128X32_OLED_I2C_0-91_inch" H 9650 2000 50  0001 C CNN
F 3 "~" H 9650 2000 50  0001 C CNN
	1    9650 2000
	1    0    0    -1  
$EndComp
$Comp
L archive:power_+5V #PWR03
U 1 1 5C9B8C44
P 9350 2000
F 0 "#PWR03" H 9350 1850 50  0001 C CNN
F 1 "+5V" V 9350 2200 50  0000 C CNN
F 2 "" H 9350 2000 50  0001 C CNN
F 3 "" H 9350 2000 50  0001 C CNN
	1    9350 2000
	0    -1   -1   0   
$EndComp
$Comp
L archive:power_GND #PWR02
U 1 1 5C9B8DB5
P 9350 1900
F 0 "#PWR02" H 9350 1650 50  0001 C CNN
F 1 "GND" V 9350 1700 50  0000 C CNN
F 2 "" H 9350 1900 50  0001 C CNN
F 3 "" H 9350 1900 50  0001 C CNN
	1    9350 1900
	0    1    1    0   
$EndComp
Wire Wire Line
	9450 2000 9350 2000
Wire Wire Line
	9350 1900 9450 1900
Text Label 8300 2200 0    50   ~ 0
SDA
Text Label 8300 2100 0    50   ~ 0
SCL
Wire Wire Line
	6300 2900 6350 2900
Wire Wire Line
	6350 2900 6350 3200
Wire Wire Line
	6300 2500 6450 2500
Wire Wire Line
	6450 2500 6450 3100
Wire Wire Line
	6900 3300 6300 3300
Wire Wire Line
	6350 3200 6900 3200
Wire Wire Line
	6450 3100 6900 3100
$Comp
L archive:Device_R R1
U 1 1 5CA0BD19
P 8500 1900
F 0 "R1" H 8570 1946 50  0000 L CNN
F 1 "4k7" H 8570 1855 50  0000 L CNN
F 2 "HX711:R_1206" V 8430 1900 50  0001 C CNN
F 3 "~" H 8500 1900 50  0001 C CNN
	1    8500 1900
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_R R2
U 1 1 5CA0BE9F
P 8800 1900
F 0 "R2" H 8870 1946 50  0000 L CNN
F 1 "4k7" H 8870 1855 50  0000 L CNN
F 2 "HX711:R_1206" V 8730 1900 50  0001 C CNN
F 3 "~" H 8800 1900 50  0001 C CNN
	1    8800 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	8300 2100 8500 2100
Wire Wire Line
	8500 2050 8500 2100
Wire Wire Line
	9450 2100 8500 2100
Connection ~ 8500 2100
Wire Wire Line
	8300 2200 8800 2200
Wire Wire Line
	8800 2050 8800 2200
Connection ~ 8800 2200
Wire Wire Line
	8800 2200 9450 2200
$Comp
L archive:power_+5V #PWR01
U 1 1 5CA29744
P 8650 1650
F 0 "#PWR01" H 8650 1500 50  0001 C CNN
F 1 "+5V" H 8665 1823 50  0000 C CNN
F 2 "" H 8650 1650 50  0001 C CNN
F 3 "" H 8650 1650 50  0001 C CNN
	1    8650 1650
	1    0    0    -1  
$EndComp
Wire Wire Line
	8800 1750 8800 1700
Wire Wire Line
	8800 1700 8650 1700
Wire Wire Line
	8500 1700 8500 1750
Wire Wire Line
	8650 1650 8650 1700
Connection ~ 8650 1700
Wire Wire Line
	8650 1700 8500 1700
$Comp
L archive:power_+5V #PWR08
U 1 1 5CA3F2DB
P 8400 2700
F 0 "#PWR08" H 8400 2550 50  0001 C CNN
F 1 "+5V" V 8400 2900 50  0000 C CNN
F 2 "" H 8400 2700 50  0001 C CNN
F 3 "" H 8400 2700 50  0001 C CNN
	1    8400 2700
	0    1    1    0   
$EndComp
Wire Wire Line
	8400 2700 8300 2700
Wire Wire Line
	8300 3900 8350 3900
Wire Wire Line
	8350 3900 8350 3950
$Comp
L archive:power_Earth #PWR022
U 1 1 5C99A9E4
P 1350 7300
F 0 "#PWR022" H 1350 7050 50  0001 C CNN
F 1 "Earth" H 1350 7150 50  0001 C CNN
F 2 "" H 1350 7300 50  0001 C CNN
F 3 "~" H 1350 7300 50  0001 C CNN
	1    1350 7300
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_L_Core_Ferrite L1
U 1 1 5C9BA53E
P 1950 6650
F 0 "L1" V 2175 6650 50  0000 C CNN
F 1 "470uH" V 2084 6650 50  0000 C CNN
F 2 "HX711:L_Taiyo-Yuden_NR-60xx_HandSoldering" H 1950 6650 50  0001 C CNN
F 3 "~" H 1950 6650 50  0001 C CNN
	1    1950 6650
	0    -1   -1   0   
$EndComp
$Comp
L archive:Device_C C6
U 1 1 5C9BA650
P 1700 6900
F 0 "C6" H 1815 6946 50  0000 L CNN
F 1 "100n" H 1815 6855 50  0000 L CNN
F 2 "HX711:C_1206" H 1738 6750 50  0001 C CNN
F 3 "~" H 1700 6900 50  0001 C CNN
	1    1700 6900
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_C C7
U 1 1 5C9BA74A
P 2200 6900
F 0 "C7" H 2315 6946 50  0000 L CNN
F 1 "1u" H 2315 6855 50  0000 L CNN
F 2 "HX711:C_1206" H 2238 6750 50  0001 C CNN
F 3 "~" H 2200 6900 50  0001 C CNN
	1    2200 6900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 6650 2100 6650
Wire Wire Line
	1700 6650 1800 6650
$Comp
L archive:power_VCC #PWR021
U 1 1 5C9DB4EA
P 1350 6600
F 0 "#PWR021" H 1350 6450 50  0001 C CNN
F 1 "VCC" H 1367 6773 50  0000 C CNN
F 2 "" H 1350 6600 50  0001 C CNN
F 3 "" H 1350 6600 50  0001 C CNN
	1    1350 6600
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_C C8
U 1 1 5C9E0BDC
P 4100 6900
F 0 "C8" H 4215 6946 50  0000 L CNN
F 1 "100n" H 4215 6855 50  0000 L CNN
F 2 "HX711:C_1206" H 4138 6750 50  0001 C CNN
F 3 "~" H 4100 6900 50  0001 C CNN
	1    4100 6900
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_C C9
U 1 1 5C9E0C8A
P 4550 6900
F 0 "C9" H 4665 6946 50  0000 L CNN
F 1 "10u" H 4665 6855 50  0000 L CNN
F 2 "HX711:C_1206" H 4588 6750 50  0001 C CNN
F 3 "~" H 4550 6900 50  0001 C CNN
	1    4550 6900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4950 6650 4950 6700
$Comp
L archive:Connector_Generic_Conn_01x03 J5
U 1 1 5CA0A4CE
P 5950 6750
F 0 "J5" H 5900 6950 50  0000 L CNN
F 1 "Current source" H 5900 6550 50  0000 L CNN
F 2 "HX711:CONN_3" H 5950 6750 50  0001 C CNN
F 3 "~" H 5950 6750 50  0001 C CNN
	1    5950 6750
	1    0    0    -1  
$EndComp
$Comp
L archive:Device_R R13
U 1 1 5CA0A6F9
P 5400 6650
F 0 "R13" V 5450 6450 50  0000 C CNN
F 1 "100k" V 5400 6650 50  0000 C CNN
F 2 "HX711:R_MiniMELF_MMA-0204" V 5330 6650 50  0001 C CNN
F 3 "~" H 5400 6650 50  0001 C CNN
	1    5400 6650
	0    -1   -1   0   
$EndComp
$Comp
L archive:Device_R R14
U 1 1 5CA0A853
P 5400 6750
F 0 "R14" V 5350 6550 50  0000 C CNN
F 1 "7k5" V 5400 6750 50  0000 C CNN
F 2 "HX711:R_MiniMELF_MMA-0204" V 5330 6750 50  0001 C CNN
F 3 "~" H 5400 6750 50  0001 C CNN
	1    5400 6750
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5550 6750 5750 6750
Wire Wire Line
	5550 6650 5750 6650
$Comp
L archive:Device_LED_Small_ALT D1
U 1 1 5CA2D77C
P 4950 7050
F 0 "D1" V 4996 6982 50  0000 R CNN
F 1 "PWR" V 4905 6982 50  0000 R CNN
F 2 "HX711:D_1206" V 4950 7050 50  0001 C CNN
F 3 "~" V 4950 7050 50  0001 C CNN
	1    4950 7050
	0    -1   -1   0   
$EndComp
$Comp
L archive:Device_R_Small R15
U 1 1 5CA2D9ED
P 4950 6800
F 0 "R15" H 5009 6846 50  0000 L CNN
F 1 "510" H 5009 6755 50  0000 L CNN
F 2 "HX711:R_1206" H 4950 6800 50  0001 C CNN
F 3 "~" H 4950 6800 50  0001 C CNN
	1    4950 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5250 6650 5200 6650
Connection ~ 4950 6650
Wire Wire Line
	5250 6750 5200 6750
Wire Wire Line
	5200 6750 5200 6650
Connection ~ 5200 6650
Wire Wire Line
	5200 6650 4950 6650
Wire Wire Line
	4950 6950 4950 6900
Wire Wire Line
	5750 6850 5750 7200
Wire Wire Line
	4550 6750 4550 6650
Connection ~ 4550 6650
Wire Wire Line
	4550 6650 4950 6650
Wire Wire Line
	4100 6750 4100 6650
Wire Wire Line
	4100 6650 4550 6650
Wire Wire Line
	4100 7050 4100 7200
Connection ~ 4100 7200
Wire Wire Line
	4100 7200 4550 7200
Wire Wire Line
	4550 7050 4550 7200
Connection ~ 4550 7200
Wire Wire Line
	4550 7200 4950 7200
Wire Wire Line
	4950 7150 4950 7200
Connection ~ 4950 7200
Wire Wire Line
	4950 7200 5750 7200
$Comp
L archive:Device_C C5
U 1 1 5CA91B16
P 1350 6900
F 0 "C5" H 1465 6946 50  0000 L CNN
F 1 "1u" H 1465 6855 50  0000 L CNN
F 2 "HX711:C_1206" H 1388 6750 50  0001 C CNN
F 3 "~" H 1350 6900 50  0001 C CNN
	1    1350 6900
	1    0    0    -1  
$EndComp
Wire Wire Line
	1700 6650 1350 6650
Connection ~ 1700 6650
Wire Wire Line
	1350 6600 1350 6650
Connection ~ 1350 6650
Wire Wire Line
	2200 6650 2200 6750
Wire Wire Line
	1700 6650 1700 6750
Wire Wire Line
	1350 6650 1350 6750
Wire Wire Line
	1350 7200 1350 7050
Wire Wire Line
	1350 7300 1350 7200
Connection ~ 1350 7200
Wire Wire Line
	1700 7200 1700 7050
Connection ~ 1700 7200
Wire Wire Line
	1700 7200 1350 7200
Wire Wire Line
	2200 7050 2200 7200
Connection ~ 2200 7200
Wire Wire Line
	2200 7200 1700 7200
$Comp
L archive:power_GND #PWR0101
U 1 1 5CB234B4
P 6750 5450
F 0 "#PWR0101" H 6750 5200 50  0001 C CNN
F 1 "GND" H 6755 5277 50  0000 C CNN
F 2 "" H 6750 5450 50  0001 C CNN
F 3 "" H 6750 5450 50  0001 C CNN
	1    6750 5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 5600 7550 5600
Wire Wire Line
	7550 5600 7550 5700
Wire Wire Line
	6300 5700 7550 5700
Wire Wire Line
	6750 5450 6750 5400
Connection ~ 6750 5400
$Comp
L archive:diy-modules_B0505S-1W M3
U 1 1 5C99C37C
P 3300 4500
F 0 "M3" H 3300 4550 50  0000 L CNN
F 1 "B0505S-1W" H 3300 4050 50  0000 L CNN
F 2 "HX711:BxxyyS-1W" H 3750 3950 50  0001 C CNN
F 3 "" H 3300 4500 50  0001 C CNN
	1    3300 4500
	1    0    0    -1  
$EndComp
$Comp
L archive:diy-modules_CH340E_BTE17-06 M2
U 1 1 5C9A4953
P 1250 4050
F 0 "M2" H 1250 4100 50  0000 L CNN
F 1 "CH340E_BTE17-06" H 1250 3300 50  0000 L CNN
F 2 "HX711:CH340E_BTE17-06" H 1250 4050 50  0001 C CNN
F 3 "" H 1250 4050 50  0001 C CNN
	1    1250 4050
	1    0    0    -1  
$EndComp
$Comp
L archive:diy-modules_HX711-Module M4
U 1 1 5C9A50EC
P 7800 5050
F 0 "M4" H 7800 5100 50  0000 L CNN
F 1 "HX711-Module" H 7800 4400 50  0000 L CNN
F 2 "HX711:HX711-Module" H 7800 5050 50  0001 C CNN
F 3 "" H 7800 5050 50  0001 C CNN
	1    7800 5050
	1    0    0    -1  
$EndComp
$Comp
L archive:various_MCP1501T-30E_CHY U3
U 1 1 5CB0120A
P 2650 6650
F 0 "U3" H 2850 6800 50  0000 L CNN
F 1 "MCP1501T-30E_CHY" H 2850 6200 50  0000 L CNN
F 2 "HX711:SOT-23-6" H 3350 6100 50  0001 C CNN
F 3 "" H 3700 6650 50  0001 C CNN
F 4 "Microchip Technology MCP1501T-10E/CHY, Precision Voltage Reference 1.02V, 0.1% 8-Pin, SOT-23" H 3300 6000 50  0001 C CNN "Description"
F 5 "Microchip" H 3250 5900 50  0001 C CNN "Manufacturer_Name"
F 6 "MCP1501T-10E/CHY" H 3300 5800 50  0001 C CNN "Manufacturer_Part_Number"
	1    2650 6650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 7200 2600 7200
Wire Wire Line
	2650 6650 2600 6650
Connection ~ 2200 6650
Wire Wire Line
	2650 6750 2600 6750
Wire Wire Line
	2600 6750 2600 6850
Connection ~ 2600 7200
Wire Wire Line
	2600 7200 4100 7200
Wire Wire Line
	2650 6950 2600 6950
Connection ~ 2600 6950
Wire Wire Line
	2600 6950 2600 7200
Wire Wire Line
	2650 6850 2600 6850
Connection ~ 2600 6850
Wire Wire Line
	2600 6850 2600 6950
Wire Wire Line
	3750 6650 4100 6650
Connection ~ 4100 6650
Wire Wire Line
	3750 6950 3800 6950
Wire Wire Line
	3800 6950 3800 6400
Wire Wire Line
	3800 6400 2600 6400
Wire Wire Line
	2600 6400 2600 6650
Connection ~ 2600 6650
Wire Wire Line
	2600 6650 2200 6650
NoConn ~ 8300 2400
NoConn ~ 8300 2600
NoConn ~ 8300 2800
NoConn ~ 8300 2900
NoConn ~ 8300 3000
NoConn ~ 8300 3100
NoConn ~ 8300 3200
NoConn ~ 8300 3300
NoConn ~ 8300 3400
NoConn ~ 8300 3500
NoConn ~ 8300 3700
NoConn ~ 8300 3800
NoConn ~ 6900 3000
NoConn ~ 6900 2900
NoConn ~ 6900 2800
NoConn ~ 6900 2600
NoConn ~ 6900 2500
NoConn ~ 6900 2400
NoConn ~ 7650 1600
NoConn ~ 7750 1600
NoConn ~ 7850 1600
NoConn ~ 2050 4150
Text Label 7300 5200 0    50   ~ 0
A-
Text Label 7300 5700 0    50   ~ 0
B-
Text Label 7300 5300 0    50   ~ 0
AB+
$Comp
L archive:OPEN_HARDWARE_1 LOGO1
U 1 1 5F96B4DA
P 10900 6850
F 0 "LOGO1" H 11147 6921 50  0001 L CNN
F 1 "OPEN_HARDWARE_1" H 11147 6830 50  0001 L CNN
F 2 "" H 10900 6850 60  0001 C CNN
F 3 "" H 10900 6850 60  0001 C CNN
	1    10900 6850
	1    0    0    -1  
$EndComp
$EndSCHEMATC