EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 6
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text HLabel 5700 4050 2    50   Output ~ 0
DAC_LRCK
Text HLabel 5700 3850 2    50   Output ~ 0
DAC_DATA
Text HLabel 9450 5600 0    50   Input ~ 0
ADC1_IN2
Text Label 5700 2750 2    50   ~ 0
ESP_TX1
Text Label 5700 2950 2    50   ~ 0
ESP_RX1
Text HLabel 5700 3150 2    50   Input ~ 0
BTN_PWR
Text HLabel 5700 4150 2    50   Output ~ 0
MEAS_EN
Text HLabel 5700 3050 2    50   Output ~ 0
PW_HOLD
Text HLabel 5700 4550 2    50   Input ~ 0
NFC_SPI_MISO
Text HLabel 5700 4350 2    50   Output ~ 0
NFC_SPI_CS
Text HLabel 5700 4450 2    50   Output ~ 0
NFC_SPI_MOSI
Text HLabel 5700 4250 2    50   Output ~ 0
~DAC_SDMODE
$Comp
L Sensor_Magnetic:DRV5055A3xDBZxQ1 U8
U 1 1 610E83A7
P 9450 4100
F 0 "U8" H 9550 4450 50  0000 R CNN
F 1 "DRV5055A3xDBZxQ1" H 10200 3750 50  0000 R CNN
F 2 "Package_TO_SOT_SMD:SOT-23" H 9450 4100 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/symlink/drv5055-q1.pdf" H 9450 4100 50  0001 C CNN
F 4 "DRV5055" H 9450 4100 50  0001 C CNN "MPN"
F 5 "TI" H 9450 4100 50  0001 C CNN "Manufacturer"
F 6 "3008999" H 9450 4100 50  0001 C CNN "ordercode"
F 7 "farnell" H 9450 4100 50  0001 C CNN "supplier"
	1    9450 4100
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR0137
U 1 1 610E9492
P 9350 3550
F 0 "#PWR0137" H 9350 3400 50  0001 C CNN
F 1 "+3V3" H 9365 3723 50  0000 C CNN
F 2 "" H 9350 3550 50  0001 C CNN
F 3 "" H 9350 3550 50  0001 C CNN
	1    9350 3550
	1    0    0    -1  
$EndComp
Wire Wire Line
	9350 3550 9350 3650
$Comp
L power:GND #PWR0138
U 1 1 610ECB75
P 9350 4650
F 0 "#PWR0138" H 9350 4400 50  0001 C CNN
F 1 "GND" H 9355 4477 50  0000 C CNN
F 2 "" H 9350 4650 50  0001 C CNN
F 3 "" H 9350 4650 50  0001 C CNN
	1    9350 4650
	1    0    0    -1  
$EndComp
Text Label 10150 4100 2    50   ~ 0
HALL_OUT
Text Label 9050 5500 0    50   ~ 0
HALL_OUT
Text HLabel 5700 3950 2    50   Output ~ 0
DAC_BCLK
Wire Wire Line
	5700 4250 5200 4250
Wire Wire Line
	5700 3950 5200 3950
Wire Wire Line
	5700 2950 5200 2950
Wire Wire Line
	5700 2750 5200 2750
$Comp
L Device:L L4
U 1 1 613328EB
P 6700 2450
F 0 "L4" V 6890 2450 50  0000 C CNN
F 1 "1.8nH" V 6799 2450 50  0000 C CNN
F 2 "Inductor_SMD:L_0402_1005Metric" H 6700 2450 50  0001 C CNN
F 3 "~" H 6700 2450 50  0001 C CNN
F 4 "1865820" H 6700 2450 50  0001 C CNN "ordercode"
F 5 "farnell" H 6700 2450 50  0001 C CNN "supplier"
	1    6700 2450
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6550 2450 6500 2450
$Comp
L Device:C C27
U 1 1 61334869
P 6500 2700
F 0 "C27" H 6615 2746 50  0000 L CNN
F 1 "1.5pF" H 6615 2655 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 6538 2550 50  0001 C CNN
F 3 "~" H 6500 2700 50  0001 C CNN
F 4 "2812055" H 6500 2700 50  0001 C CNN "ordercode"
F 5 "farnell" H 6500 2700 50  0001 C CNN "supplier"
	1    6500 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	6500 2550 6500 2450
Connection ~ 6500 2450
Wire Wire Line
	6500 2450 5200 2450
$Comp
L power:GND #PWR0125
U 1 1 61337DCC
P 6500 2950
F 0 "#PWR0125" H 6500 2700 50  0001 C CNN
F 1 "GND" H 6505 2777 50  0000 C CNN
F 2 "" H 6500 2950 50  0001 C CNN
F 3 "" H 6500 2950 50  0001 C CNN
	1    6500 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	6500 2950 6500 2850
$Comp
L power:+3V3 #PWR0127
U 1 1 6133C7DC
P 2850 1350
F 0 "#PWR0127" H 2850 1200 50  0001 C CNN
F 1 "+3V3" H 2865 1523 50  0000 C CNN
F 2 "" H 2850 1350 50  0001 C CNN
F 3 "" H 2850 1350 50  0001 C CNN
	1    2850 1350
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 1350 2850 1600
Wire Wire Line
	4300 1600 4300 2250
$Comp
L Device:C C21
U 1 1 61348E84
P 2850 1800
F 0 "C21" H 2965 1846 50  0000 L CNN
F 1 "100nF" H 2965 1755 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2888 1650 50  0001 C CNN
F 3 "~" H 2850 1800 50  0001 C CNN
F 4 "2524678" H 2850 1800 50  0001 C CNN "ordercode"
F 5 "farnell" H 2850 1800 50  0001 C CNN "supplier"
	1    2850 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 1650 2850 1600
Connection ~ 2850 1600
$Comp
L power:GND #PWR0128
U 1 1 6134A474
P 2850 2050
F 0 "#PWR0128" H 2850 1800 50  0001 C CNN
F 1 "GND" V 2855 1922 50  0000 R CNN
F 2 "" H 2850 2050 50  0001 C CNN
F 3 "" H 2850 2050 50  0001 C CNN
	1    2850 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 2050 2850 1950
Wire Wire Line
	4200 2250 4200 1450
Wire Wire Line
	4200 1450 4400 1450
Wire Wire Line
	4400 1450 4400 2250
Wire Wire Line
	4500 2250 4500 1450
Wire Wire Line
	4500 1450 4400 1450
Connection ~ 4400 1450
$Comp
L power:+3V3 #PWR0130
U 1 1 6134F73A
P 4400 1400
F 0 "#PWR0130" H 4400 1250 50  0001 C CNN
F 1 "+3V3" H 4415 1573 50  0000 C CNN
F 2 "" H 4400 1400 50  0001 C CNN
F 3 "" H 4400 1400 50  0001 C CNN
	1    4400 1400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 1400 4400 1450
Wire Wire Line
	4850 1450 4500 1450
Connection ~ 4500 1450
$Comp
L power:GND #PWR0131
U 1 1 61354B1A
P 4400 5550
F 0 "#PWR0131" H 4400 5300 50  0001 C CNN
F 1 "GND" V 4405 5422 50  0000 R CNN
F 2 "" H 4400 5550 50  0001 C CNN
F 3 "" H 4400 5550 50  0001 C CNN
	1    4400 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 5550 4400 5450
Text HLabel 5700 3650 2    50   Output ~ 0
NFC_SPI_SCK
Text Label 5700 5150 2    50   ~ 0
VDD_SDIO
Wire Wire Line
	4850 1500 4850 1450
$Comp
L Device:C C26
U 1 1 613518FB
P 4850 1650
F 0 "C26" H 4965 1696 50  0000 L CNN
F 1 "100nF" H 4965 1605 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4888 1500 50  0001 C CNN
F 3 "~" H 4850 1650 50  0001 C CNN
F 4 "2524678" H 4850 1650 50  0001 C CNN "ordercode"
F 5 "farnell" H 4850 1650 50  0001 C CNN "supplier"
	1    4850 1650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4850 1850 4850 1800
$Comp
L power:GND #PWR0136
U 1 1 613532A8
P 4850 1850
F 0 "#PWR0136" H 4850 1600 50  0001 C CNN
F 1 "GND" V 4855 1722 50  0000 R CNN
F 2 "" H 4850 1850 50  0001 C CNN
F 3 "" H 4850 1850 50  0001 C CNN
	1    4850 1850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 3850 5200 3850
Text Label 1900 2450 0    50   ~ 0
ESP_RST
$Comp
L Device:R R14
U 1 1 613F1E03
P 2300 2200
F 0 "R14" H 2370 2246 50  0000 L CNN
F 1 "10K" H 2370 2155 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2230 2200 50  0001 C CNN
F 3 "~" H 2300 2200 50  0001 C CNN
F 4 "R10K_0402" H 2300 2200 50  0001 C CNN "StockRef"
F 5 "2447096" H 2300 2200 50  0001 C CNN "ordercode"
F 6 "farnell" H 2300 2200 50  0001 C CNN "supplier"
	1    2300 2200
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 2350 2300 2450
Connection ~ 2300 2450
Wire Wire Line
	2300 2450 3600 2450
$Comp
L power:+3V3 #PWR0141
U 1 1 613F5704
P 2300 1950
F 0 "#PWR0141" H 2300 1800 50  0001 C CNN
F 1 "+3V3" H 2315 2123 50  0000 C CNN
F 2 "" H 2300 1950 50  0001 C CNN
F 3 "" H 2300 1950 50  0001 C CNN
	1    2300 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 1950 2300 2050
$Comp
L Device:C C19
U 1 1 613F9222
P 2300 2700
F 0 "C19" H 2415 2746 50  0000 L CNN
F 1 "100nF" H 2415 2655 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 2338 2550 50  0001 C CNN
F 3 "~" H 2300 2700 50  0001 C CNN
F 4 "2524678" H 2300 2700 50  0001 C CNN "ordercode"
F 5 "farnell" H 2300 2700 50  0001 C CNN "supplier"
	1    2300 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 2550 2300 2450
$Comp
L power:GND #PWR0142
U 1 1 613FCEE1
P 2300 2900
F 0 "#PWR0142" H 2300 2650 50  0001 C CNN
F 1 "GND" V 2305 2772 50  0000 R CNN
F 2 "" H 2300 2900 50  0001 C CNN
F 3 "" H 2300 2900 50  0001 C CNN
	1    2300 2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 2900 2300 2850
$Comp
L Device:R R21
U 1 1 613CA13C
P 7300 1550
F 0 "R21" V 7400 1600 50  0000 L CNN
F 1 "10K" V 7400 1400 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7230 1550 50  0001 C CNN
F 3 "~" H 7300 1550 50  0001 C CNN
F 4 "R10K_0402" H 7300 1550 50  0001 C CNN "StockRef"
F 5 "2447096" H 7300 1550 50  0001 C CNN "ordercode"
F 6 "farnell" H 7300 1550 50  0001 C CNN "supplier"
	1    7300 1550
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R22
U 1 1 613CA3A9
P 7300 1100
F 0 "R22" V 7400 1150 50  0000 L CNN
F 1 "10K" V 7400 950 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7230 1100 50  0001 C CNN
F 3 "~" H 7300 1100 50  0001 C CNN
F 4 "R10K_0402" H 7300 1100 50  0001 C CNN "StockRef"
F 5 "2447096" H 7300 1100 50  0001 C CNN "ordercode"
F 6 "farnell" H 7300 1100 50  0001 C CNN "supplier"
	1    7300 1100
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R23
U 1 1 613CB052
P 7300 1300
F 0 "R23" V 7400 1350 50  0000 L CNN
F 1 "10K" V 7400 1150 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7230 1300 50  0001 C CNN
F 3 "~" H 7300 1300 50  0001 C CNN
F 4 "R10K_0402" H 7300 1300 50  0001 C CNN "StockRef"
F 5 "2447096" H 7300 1300 50  0001 C CNN "ordercode"
F 6 "farnell" H 7300 1300 50  0001 C CNN "supplier"
	1    7300 1300
	0    -1   -1   0   
$EndComp
$Comp
L power:+3V3 #PWR01
U 1 1 613CB3DC
P 6850 800
F 0 "#PWR01" H 6850 650 50  0001 C CNN
F 1 "+3V3" H 6865 973 50  0000 C CNN
F 2 "" H 6850 800 50  0001 C CNN
F 3 "" H 6850 800 50  0001 C CNN
	1    6850 800 
	1    0    0    -1  
$EndComp
Wire Wire Line
	7150 1100 6850 1100
$Comp
L power:GND #PWR02
U 1 1 613DE4F2
P 6850 1600
F 0 "#PWR02" H 6850 1350 50  0001 C CNN
F 1 "GND" H 6855 1427 50  0000 C CNN
F 2 "" H 6850 1600 50  0001 C CNN
F 3 "" H 6850 1600 50  0001 C CNN
	1    6850 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	6850 1600 6850 1550
Wire Wire Line
	6850 1300 7150 1300
Text Label 8050 1300 2    50   ~ 0
ESP_GPIO15
Text Label 8050 1100 2    50   ~ 0
ESP_GPIO0
Text Label 8050 1550 2    50   ~ 0
ESP_GPIO2
Wire Wire Line
	7450 1300 8050 1300
Wire Wire Line
	8050 1100 7450 1100
Wire Wire Line
	8050 1550 7450 1550
Text Label 5700 2850 2    50   ~ 0
ESP_GPIO2
Wire Wire Line
	5200 2850 5700 2850
Wire Wire Line
	5700 4050 5200 4050
Text Label 5700 2650 2    50   ~ 0
ESP_GPIO0
Wire Wire Line
	5200 2650 5700 2650
Text HLabel 5700 2750 2    50   Output ~ 0
ESP_TX
Text HLabel 5700 2950 2    50   Output ~ 0
ESP_RX
Text HLabel 5700 2650 2    50   Input ~ 0
ESP_GPIO0
Text HLabel 1800 2450 0    50   Input ~ 0
ESP_RST
Wire Wire Line
	1800 2450 2300 2450
Text Label 5700 2450 2    50   ~ 0
ESP_LNA_IN
Text Label 7000 2450 0    50   ~ 0
WIFI_ANT
$Comp
L Device:Antenna_Chip ANT1
U 1 1 6133A7B9
P 7700 2550
F 0 "ANT1" H 7700 2797 60  0000 C CNN
F 1 "2450AT14A100E" H 7700 2691 60  0000 C CNN
F 2 "MySymbols:wifi antenna" H 7900 2750 60  0001 L CNN
F 3 "https://www.johansontechnology.com/datasheets/2450AT18A100/2450AT18A100.pdf" H 7900 2850 60  0001 L CNN
F 4 "712-1005-1-ND" H 7900 2950 60  0001 L CNN "Digi-Key_PN"
F 5 "2450AT18A100E" H 7900 3050 60  0001 L CNN "MPN"
F 6 "RF/IF and RFID" H 7900 3150 60  0001 L CNN "Category"
F 7 "RF Antennas" H 7900 3250 60  0001 L CNN "Family"
F 8 "https://www.johansontechnology.com/datasheets/2450AT18A100/2450AT18A100.pdf" H 7900 3350 60  0001 L CNN "DK_Datasheet_Link"
F 9 "/product-detail/en/johanson-technology-inc/2450AT18A100E/712-1005-1-ND/1560834" H 7900 3450 60  0001 L CNN "DK_Detail_Page"
F 10 "RF ANT 2.4GHZ CHIP SOLDER SMD" H 7900 3550 60  0001 L CNN "Description"
F 11 "Johanson Technology Inc." H 7900 3650 60  0001 L CNN "Manufacturer"
F 12 "Active" H 7900 3750 60  0001 L CNN "Status"
F 13 "https://www.ebay.nl/itm/164779252093" H 7700 2550 50  0001 C CNN "ordercode"
F 14 "ebay" H 7700 2550 50  0001 C CNN "supplier"
	1    7700 2550
	1    0    0    1   
$EndComp
Text Label 7950 2450 0    50   ~ 0
A2
$Comp
L Connector_Generic:Conn_01x01 J9
U 1 1 614111A0
P 8250 2450
F 0 "J9" H 8330 2492 50  0000 L CNN
F 1 "Conn_01x01" H 8330 2401 50  0000 L CNN
F 2 "MySymbols:AntennaTrace" H 8250 2450 50  0001 C CNN
F 3 "~" H 8250 2450 50  0001 C CNN
	1    8250 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7800 2450 8050 2450
Wire Wire Line
	6850 2450 7600 2450
Text Label 5700 3750 2    50   ~ 0
ESP_GPIO15
Wire Wire Line
	5700 3750 5200 3750
NoConn ~ 5200 4850
NoConn ~ 3600 2750
NoConn ~ 3600 2850
NoConn ~ 3600 2950
Wire Wire Line
	2850 1600 4300 1600
Wire Wire Line
	6850 800  6850 1100
Wire Wire Line
	7150 1550 6850 1550
Connection ~ 6850 1550
Wire Wire Line
	6850 1550 6850 1300
Text HLabel 5700 3550 2    50   Input ~ 0
~NFC_RST
$Comp
L Device:C C11
U 1 1 617860CD
P 5950 5350
F 0 "C11" H 6065 5396 50  0000 L CNN
F 1 "100nF" H 6065 5305 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 5988 5200 50  0001 C CNN
F 3 "~" H 5950 5350 50  0001 C CNN
F 4 "2524678" H 5950 5350 50  0001 C CNN "ordercode"
F 5 "farnell" H 5950 5350 50  0001 C CNN "supplier"
	1    5950 5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 5200 5950 5150
Wire Wire Line
	5200 5150 5950 5150
$Comp
L power:GND #PWR0129
U 1 1 61788E85
P 5950 5600
F 0 "#PWR0129" H 5950 5350 50  0001 C CNN
F 1 "GND" V 5955 5472 50  0000 R CNN
F 2 "" H 5950 5600 50  0001 C CNN
F 3 "" H 5950 5600 50  0001 C CNN
	1    5950 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 5600 5950 5500
$Comp
L power:+3V3 #PWR05
U 1 1 61796E8C
P 9950 5000
F 0 "#PWR05" H 9950 4850 50  0001 C CNN
F 1 "+3V3" H 9965 5173 50  0000 C CNN
F 2 "" H 9950 5000 50  0001 C CNN
F 3 "" H 9950 5000 50  0001 C CNN
	1    9950 5000
	1    0    0    -1  
$EndComp
Wire Wire Line
	9950 5000 9950 5100
Text Label 10750 5600 2    50   ~ 0
ADS_SCL
Text Label 10750 5700 2    50   ~ 0
ADS_SDA
Text Label 10750 5400 2    50   ~ 0
ADS_RDY
Wire Wire Line
	10750 5400 10350 5400
Wire Wire Line
	10750 5600 10350 5600
Wire Wire Line
	10750 5700 10350 5700
$Comp
L power:GND #PWR06
U 1 1 6179DD8F
P 9950 6100
F 0 "#PWR06" H 9950 5850 50  0001 C CNN
F 1 "GND" V 9955 5972 50  0000 R CNN
F 2 "" H 9950 6100 50  0001 C CNN
F 3 "" H 9950 6100 50  0001 C CNN
	1    9950 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	9950 6100 9950 6000
$Comp
L power:GND #PWR07
U 1 1 6179F99B
P 10650 6100
F 0 "#PWR07" H 10650 5850 50  0001 C CNN
F 1 "GND" V 10655 5972 50  0000 R CNN
F 2 "" H 10650 6100 50  0001 C CNN
F 3 "" H 10650 6100 50  0001 C CNN
	1    10650 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	10650 6100 10650 5800
Wire Wire Line
	10650 5800 10350 5800
Text Notes 9450 6500 0    50   ~ 0
default  i2c address = 0x48
$Comp
L Device:C C18
U 1 1 617A1EF2
P 8500 5600
F 0 "C18" H 8615 5646 50  0000 L CNN
F 1 "100nF" H 8615 5555 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8538 5450 50  0001 C CNN
F 3 "~" H 8500 5600 50  0001 C CNN
F 4 "2524678" H 8500 5600 50  0001 C CNN "ordercode"
F 5 "farnell" H 8500 5600 50  0001 C CNN "supplier"
	1    8500 5600
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR03
U 1 1 617A2797
P 8500 5000
F 0 "#PWR03" H 8500 4850 50  0001 C CNN
F 1 "+3V3" H 8515 5173 50  0000 C CNN
F 2 "" H 8500 5000 50  0001 C CNN
F 3 "" H 8500 5000 50  0001 C CNN
	1    8500 5000
	1    0    0    -1  
$EndComp
Wire Wire Line
	8500 5000 8500 5450
$Comp
L power:GND #PWR04
U 1 1 617A655A
P 8500 6100
F 0 "#PWR04" H 8500 5850 50  0001 C CNN
F 1 "GND" V 8505 5972 50  0000 R CNN
F 2 "" H 8500 6100 50  0001 C CNN
F 3 "" H 8500 6100 50  0001 C CNN
	1    8500 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	8500 6100 8500 5750
NoConn ~ 3600 3850
NoConn ~ 3600 3950
NoConn ~ 3600 4050
NoConn ~ 3600 4150
NoConn ~ 3600 4250
NoConn ~ 3600 4350
NoConn ~ 3600 2650
Text Label 5700 4650 2    50   ~ 0
ADS_SCL
Text Label 5700 4750 2    50   ~ 0
ADS_SDA
Wire Wire Line
	5700 4750 5200 4750
Wire Wire Line
	5700 4650 5200 4650
NoConn ~ 5200 4950
Text Notes 6250 3900 0    50   ~ 0
OK
Text Notes 6250 4000 0    50   ~ 0
OK
Text Notes 6250 4100 0    50   ~ 0
OK
Text Notes 6250 4250 0    50   ~ 0
OK
$Comp
L RF_Module:ESP32-PICO-D4_update U4
U 1 1 613C5900
P 4400 3850
AR Path="/613C5900" Ref="U4"  Part="1" 
AR Path="/60FFCEAC/613C5900" Ref="U4"  Part="1" 
F 0 "U4" H 5100 5450 50  0000 C CNN
F 1 "RF_Module_ESP32-PICO-D4" H 5000 2250 50  0000 C CNN
F 2 "Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.3x5.3mm" H 4400 2150 50  0001 C CNN
F 3 "" H 4650 2850 50  0001 C CNN
F 4 "Espressive" H 4400 3850 50  0001 C CNN "Manufacturer"
	1    4400 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 4350 5200 4350
Wire Wire Line
	5700 4450 5200 4450
Wire Wire Line
	5700 4550 5200 4550
Wire Wire Line
	5700 3650 5200 3650
NoConn ~ 5200 3450
$Comp
L Device:C C22
U 1 1 61885C4A
P 8850 4100
F 0 "C22" H 8965 4146 50  0000 L CNN
F 1 "100nF" H 8965 4055 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 8888 3950 50  0001 C CNN
F 3 "~" H 8850 4100 50  0001 C CNN
F 4 "2524678" H 8850 4100 50  0001 C CNN "ordercode"
F 5 "farnell" H 8850 4100 50  0001 C CNN "supplier"
	1    8850 4100
	1    0    0    -1  
$EndComp
Wire Wire Line
	9350 3650 8850 3650
Wire Wire Line
	8850 3650 8850 3950
Connection ~ 9350 3650
Wire Wire Line
	9350 3650 9350 3700
Wire Wire Line
	9350 4500 9350 4550
Wire Wire Line
	8850 4250 8850 4550
Wire Wire Line
	8850 4550 9350 4550
Connection ~ 9350 4550
Wire Wire Line
	9350 4550 9350 4650
$Comp
L Device:C C28
U 1 1 61908650
P 10550 4400
F 0 "C28" H 10665 4446 50  0000 L CNN
F 1 "100nF" H 10665 4355 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 10588 4250 50  0001 C CNN
F 3 "~" H 10550 4400 50  0001 C CNN
F 4 "2524678" H 10550 4400 50  0001 C CNN "ordercode"
F 5 "farnell" H 10550 4400 50  0001 C CNN "supplier"
	1    10550 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	10550 4250 10550 4100
Wire Wire Line
	9750 4100 10550 4100
$Comp
L power:GND #PWR08
U 1 1 6190A7E9
P 10550 4650
F 0 "#PWR08" H 10550 4400 50  0001 C CNN
F 1 "GND" H 10555 4477 50  0000 C CNN
F 2 "" H 10550 4650 50  0001 C CNN
F 3 "" H 10550 4650 50  0001 C CNN
	1    10550 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	10550 4650 10550 4550
$Comp
L Device:R R13
U 1 1 61931672
P 7350 5300
F 0 "R13" H 7420 5346 50  0000 L CNN
F 1 "10K" H 7420 5255 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7280 5300 50  0001 C CNN
F 3 "~" H 7350 5300 50  0001 C CNN
F 4 "R10K_0402" H 7350 5300 50  0001 C CNN "StockRef"
F 5 "2447096" H 7350 5300 50  0001 C CNN "ordercode"
F 6 "farnell" H 7350 5300 50  0001 C CNN "supplier"
	1    7350 5300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R16
U 1 1 619322F3
P 7650 5300
F 0 "R16" H 7720 5346 50  0000 L CNN
F 1 "10K" H 7720 5255 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7580 5300 50  0001 C CNN
F 3 "~" H 7650 5300 50  0001 C CNN
F 4 "R10K_0402" H 7650 5300 50  0001 C CNN "StockRef"
F 5 "2447096" H 7650 5300 50  0001 C CNN "ordercode"
F 6 "farnell" H 7650 5300 50  0001 C CNN "supplier"
	1    7650 5300
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR09
U 1 1 619324F5
P 7350 5050
F 0 "#PWR09" H 7350 4900 50  0001 C CNN
F 1 "+3V3" H 7365 5223 50  0000 C CNN
F 2 "" H 7350 5050 50  0001 C CNN
F 3 "" H 7350 5050 50  0001 C CNN
	1    7350 5050
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR010
U 1 1 6193299B
P 7650 5050
F 0 "#PWR010" H 7650 4900 50  0001 C CNN
F 1 "+3V3" H 7665 5223 50  0000 C CNN
F 2 "" H 7650 5050 50  0001 C CNN
F 3 "" H 7650 5050 50  0001 C CNN
	1    7650 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 5050 7650 5150
Wire Wire Line
	7350 5050 7350 5150
Text Label 8100 5600 2    50   ~ 0
ADS_SCL
Text Label 8100 5700 2    50   ~ 0
ADS_SDA
Wire Wire Line
	8100 5700 7350 5700
Wire Wire Line
	7350 5700 7350 5450
Wire Wire Line
	8100 5600 7650 5600
Wire Wire Line
	7650 5600 7650 5450
Wire Wire Line
	5700 3550 5200 3550
$Comp
L Analog_ADC:ADS1114IDGS U6
U 1 1 6177DA48
P 9950 5600
F 0 "U6" H 10100 6100 50  0000 C CNN
F 1 "ADS1114IDGS" H 10250 5250 50  0000 C CNN
F 2 "Package_SO:TSSOP-10_3x3mm_P0.5mm" H 9950 5100 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/ads1113.pdf" H 9900 4700 50  0001 C CNN
	1    9950 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	9050 5500 9550 5500
Wire Wire Line
	9450 5600 9550 5600
Wire Wire Line
	5700 4150 5200 4150
NoConn ~ 5200 3250
NoConn ~ 5200 3350
Wire Wire Line
	5200 3050 5700 3050
Wire Wire Line
	5700 3150 5200 3150
$EndSCHEMATC