bluetooth.sch

EESchema Schematic File Version 2
LIBS:keyboard_parts
LIBS:HHKB_controller-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 2
Title "HHKB Alt Controller"
Date "2016/07"
Rev "K"
Comp "TMK"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L CONN_2 P100
U 1 1 51AFD4A8
P 4125 6625
F 0 "P100" V 4075 6625 40  0000 C CNN
F 1 "LIPO" V 4175 6625 40  0000 C CNN
F 2 "keyboard_parts:JST_PH2_SMT_TH" H 4125 6625 60  0001 C CNN
F 3 "" H 4125 6625 60  0000 C CNN
	1    4125 6625
	-1   0    0    -1  
$EndComp
Text Notes 3850 6900 0    60   ~ 0
JST PH2
$Comp
L GND #PWR025
U 1 1 51AFD4B7
P 4725 6975
F 0 "#PWR025" H 4725 6975 30  0001 C CNN
F 1 "GND" H 4725 6905 30  0001 C CNN
F 2 "" H 4725 6975 60  0000 C CNN
F 3 "" H 4725 6975 60  0000 C CNN
	1    4725 6975
	1    0    0    -1  
$EndComp
$Comp
L LTC4054 U4
U 1 1 51AFDC54
P 5525 6625
F 0 "U4" H 5525 6425 60  0000 C CNN
F 1 "MCP73832" H 5525 6825 60  0000 C CNN
F 2 "keyboard_parts:SOT23-5_HSOL" H 5525 6625 60  0001 C CNN
F 3 "" H 5525 6625 60  0000 C CNN
	1    5525 6625
	1    0    0    1   
$EndComp
$Comp
L HT7750A U3
U 1 1 51B35E76
P 2700 4900
F 0 "U3" H 2700 4700 60  0000 C CNN
F 1 "NCP1402SN50" H 2700 5100 60  0000 C CNN
F 2 "keyboard_parts:SOT23-5_HSOL" H 2700 4900 60  0001 C CNN
F 3 "" H 2700 4900 60  0000 C CNN
	1    2700 4900
	1    0    0    -1  
$EndComp
$Comp
L C C11
U 1 1 51B35F33
P 1250 2850
F 0 "C11" H 1300 2950 50  0000 L CNN
F 1 "1u" H 1300 2750 50  0000 L CNN
F 2 "keyboard_parts:C_3216" H 1250 2850 60  0001 C CNN
F 3 "" H 1250 2850 60  0000 C CNN
	1    1250 2850
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 51B35F42
P 3300 2850
F 0 "C14" H 3350 2950 50  0000 L CNN
F 1 "1u" H 3350 2750 50  0000 L CNN
F 2 "keyboard_parts:C_3216" H 3300 2850 60  0001 C CNN
F 3 "" H 3300 2850 60  0000 C CNN
	1    3300 2850
	1    0    0    -1  
$EndComp
$Comp
L CAPAPOL C15
U 1 1 51B35F52
P 4350 4850
F 0 "C15" H 4400 4950 40  0000 L CNN
F 1 "10u" H 4400 4750 40  0000 L CNN
F 2 "keyboard_parts:C_3528" H 4450 4700 30  0001 C CNN
F 3 "" H 4350 4850 300 0000 C CNN
	1    4350 4850
	1    0    0    -1  
$EndComp
$Comp
L CAPAPOL C12
U 1 1 51B35F61
P 1600 4850
F 0 "C12" H 1650 4950 40  0000 L CNN
F 1 "47u" H 1650 4750 40  0000 L CNN
F 2 "keyboard_parts:C_3528" H 1700 4700 30  0001 C CNN
F 3 "" H 1600 4850 300 0000 C CNN
	1    1600 4850
	1    0    0    -1  
$EndComp
$Comp
L INDUCTOR_SMALL L1
U 1 1 51B35FB0
P 3900 4450
F 0 "L1" H 3900 4550 50  0000 C CNN
F 1 "47u" H 3900 4400 50  0000 C CNN
F 2 "keyboard_parts:L_6x6MM" H 3900 4450 60  0001 C CNN
F 3 "" H 3900 4450 60  0000 C CNN
	1    3900 4450
	1    0    0    -1  
$EndComp
Text Label 4500 4450 0    60   ~ 0
PSEL
$Comp
L GND #PWR026
U 1 1 51B36189
P 1600 5150
F 0 "#PWR026" H 1600 5150 30  0001 C CNN
F 1 "GND" H 1600 5080 30  0001 C CNN
F 2 "" H 1600 5150 60  0000 C CNN
F 3 "" H 1600 5150 60  0000 C CNN
	1    1600 5150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR027
U 1 1 51B36198
P 4350 5150
F 0 "#PWR027" H 4350 5150 30  0001 C CNN
F 1 "GND" H 4350 5080 30  0001 C CNN
F 2 "" H 4350 5150 60  0000 C CNN
F 3 "" H 4350 5150 60  0000 C CNN
	1    4350 5150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR028
U 1 1 51B36208
P 3400 5150
F 0 "#PWR028" H 3400 5150 30  0001 C CNN
F 1 "GND" H 3400 5080 30  0001 C CNN
F 2 "" H 3400 5150 60  0000 C CNN
F 3 "" H 3400 5150 60  0000 C CNN
	1    3400 5150
	1    0    0    -1  
$EndComp
Text Notes 850  5150 0    60   ~ 0
47-68uF 10V Tantalium\nESR: 0.15-0.30Ohm
Text Notes 3650 5125 0    60   ~ 0
16V Tantalium or\nlow ESR Ceramic(X5R/X7R/JIS B)
Text GLabel 1150 4450 0    60   Input ~ 0
5V_BOOST
$Comp
L GND #PWR029
U 1 1 51B4212D
P 1250 3150
F 0 "#PWR029" H 1250 3150 30  0001 C CNN
F 1 "GND" H 1250 3080 30  0001 C CNN
F 2 "" H 1250 3150 60  0000 C CNN
F 3 "" H 1250 3150 60  0000 C CNN
	1    1250 3150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR030
U 1 1 51B4213C
P 3300 3150
F 0 "#PWR030" H 3300 3150 30  0001 C CNN
F 1 "GND" H 3300 3080 30  0001 C CNN
F 2 "" H 3300 3150 60  0000 C CNN
F 3 "" H 3300 3150 60  0000 C CNN
	1    3300 3150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR031
U 1 1 51B421C0
P 1650 3150
F 0 "#PWR031" H 1650 3150 30  0001 C CNN
F 1 "GND" H 1650 3080 30  0001 C CNN
F 2 "" H 1650 3150 60  0000 C CNN
F 3 "" H 1650 3150 60  0000 C CNN
	1    1650 3150
	1    0    0    -1  
$EndComp
Text Notes 2850 2950 2    60   ~ 0
NC
Text Notes 1500 3950 2    60   ~ 0
5V Boost Converter
Text Notes 1300 2400 2    60   ~ 0
3.3V Regulator
Text Notes 2375 700  2    60   ~ 0
Bluetooth Module 5-3.3V Level Shifters
$Comp
L R R6
U 1 1 51B42421
P 950 1625
F 0 "R6" V 1030 1625 50  0000 C CNN
F 1 "10K" V 950 1625 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 950 1625 60  0001 C CNN
F 3 "" H 950 1625 60  0000 C CNN
	1    950  1625
	1    0    0    -1  
$EndComp
$Comp
L R R7
U 1 1 51B42452
P 1850 1625
F 0 "R7" V 1930 1625 50  0000 C CNN
F 1 "10K" V 1850 1625 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 1850 1625 60  0001 C CNN
F 3 "" H 1850 1625 60  0000 C CNN
	1    1850 1625
	1    0    0    -1  
$EndComp
$Comp
L R R8
U 1 1 51B42461
P 4650 1100
F 0 "R8" V 4730 1100 50  0000 C CNN
F 1 "10K" V 4650 1100 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 4650 1100 60  0001 C CNN
F 3 "" H 4650 1100 60  0000 C CNN
	1    4650 1100
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 51B42470
P 4650 1700
F 0 "R9" V 4730 1700 50  0000 C CNN
F 1 "15K" V 4650 1700 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 4650 1700 60  0001 C CNN
F 3 "" H 4650 1700 60  0000 C CNN
	1    4650 1700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR032
U 1 1 51B4294A
P 4650 2050
F 0 "#PWR032" H 4650 2050 30  0001 C CNN
F 1 "GND" H 4650 1980 30  0001 C CNN
F 2 "" H 4650 2050 60  0000 C CNN
F 3 "" H 4650 2050 60  0000 C CNN
	1    4650 2050
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR033
U 1 1 51B42AA7
P 1850 1025
F 0 "#PWR033" H 1850 1115 20  0001 C CNN
F 1 "+5V" H 1850 1115 30  0000 C CNN
F 2 "" H 1850 1025 60  0000 C CNN
F 3 "" H 1850 1025 60  0000 C CNN
	1    1850 1025
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR034
U 1 1 51B42AB6
P 950 1025
F 0 "#PWR034" H 950 985 30  0001 C CNN
F 1 "+3.3V" H 950 1135 30  0000 C CNN
F 2 "" H 950 1025 60  0000 C CNN
F 3 "" H 950 1025 60  0000 C CNN
	1    950  1025
	1    0    0    -1  
$EndComp
Text Label 850  1875 2    60   ~ 0
TX_33
Text Label 4550 1400 2    60   ~ 0
RX_33
Text GLabel 4700 700  2    60   Input ~ 0
BT_RX
Text GLabel 2000 1875 2    60   Input ~ 0
BT_TX
Text Notes 4875 5925 2    60   ~ 0
Lipo Battery Charger
Text Notes 10125 725  2    60   ~ 0
Roving Networks RN42
$Comp
L LED D4
U 1 1 51B43D8A
P 8475 5950
F 0 "D4" H 8475 6050 50  0000 C CNN
F 1 "LED" H 8475 5850 50  0000 C CNN
F 2 "keyboard_parts:LED_TH" H 8475 5950 60  0001 C CNN
F 3 "" H 8475 5950 60  0000 C CNN
	1    8475 5950
	0    1    1    0   
$EndComp
$Comp
L R R10
U 1 1 51B43D99
P 8275 5425
F 0 "R10" V 8355 5425 50  0000 C CNN
F 1 "1K" V 8275 5425 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 8275 5425 60  0001 C CNN
F 3 "" H 8275 5425 60  0000 C CNN
	1    8275 5425
	1    0    0    -1  
$EndComp
$Comp
L R R11
U 1 1 51B43EF8
P 6175 6975
F 0 "R11" V 6255 6975 50  0000 C CNN
F 1 "Rprog" V 6175 6975 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 6175 6975 60  0001 C CNN
F 3 "" H 6175 6975 60  0000 C CNN
	1    6175 6975
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR035
U 1 1 51B44001
P 6175 7275
F 0 "#PWR035" H 6175 7275 30  0001 C CNN
F 1 "GND" H 6175 7205 30  0001 C CNN
F 2 "" H 6175 7275 60  0000 C CNN
F 3 "" H 6175 7275 60  0000 C CNN
	1    6175 7275
	1    0    0    -1  
$EndComp
Text Notes 6550 7475 2    60   ~ 0
Charge current: Ichg = 1000V/Rprog
Text Notes 750  4250 0    60   ~ 0
5V Output
$Comp
L CONN_1 P111
U 1 1 51B89482
P 7200 1150
F 0 "P111" H 7280 1150 40  0000 L CNN
F 1 "CONN_1" H 7200 1205 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1150 60  0001 C CNN
F 3 "" H 7200 1150 60  0000 C CNN
	1    7200 1150
	-1   0    0    1   
$EndComp
$Comp
L CONN_1 P112
U 1 1 51B89491
P 7200 1300
F 0 "P112" H 7280 1300 40  0000 L CNN
F 1 "CONN_1" H 7200 1355 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1300 60  0001 C CNN
F 3 "" H 7200 1300 60  0000 C CNN
	1    7200 1300
	-1   0    0    1   
$EndComp
$Comp
L CONN_1 P110
U 1 1 51B89658
P 7200 1000
F 0 "P110" H 7280 1000 40  0000 L CNN
F 1 "CONN_1" H 7200 1055 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1000 60  0001 C CNN
F 3 "" H 7200 1000 60  0000 C CNN
	1    7200 1000
	-1   0    0    1   
$EndComp
$Comp
L CONN_1 P113
U 1 1 51B89667
P 7200 1450
F 0 "P113" H 7280 1450 40  0000 L CNN
F 1 "CONN_1" H 7200 1505 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1450 60  0001 C CNN
F 3 "" H 7200 1450 60  0000 C CNN
	1    7200 1450
	-1   0    0    1   
$EndComp
Text Label 7500 1150 0    60   ~ 0
RX_33
Text Label 7500 1300 0    60   ~ 0
TX_33
Text Notes 7000 2050 0    60   ~ 0
BT UART pinouts
$Comp
L +3.3V #PWR036
U 1 1 51B8A63B
P 6025 5050
F 0 "#PWR036" H 6025 5010 30  0001 C CNN
F 1 "+3.3V" H 6025 5160 30  0000 C CNN
F 2 "" H 6025 5050 60  0000 C CNN
F 3 "" H 6025 5050 60  0000 C CNN
	1    6025 5050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR037
U 1 1 51B8A64A
P 7850 1550
F 0 "#PWR037" H 7850 1550 30  0001 C CNN
F 1 "GND" H 7850 1480 30  0001 C CNN
F 2 "" H 7850 1550 60  0000 C CNN
F 3 "" H 7850 1550 60  0000 C CNN
	1    7850 1550
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P115
U 1 1 51B8ABD3
P 7200 1750
F 0 "P115" H 7280 1750 40  0000 L CNN
F 1 "CONN_1" H 7200 1805 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1750 60  0001 C CNN
F 3 "" H 7200 1750 60  0000 C CNN
	1    7200 1750
	-1   0    0    1   
$EndComp
Text Label 7750 1750 2    60   ~ 0
RTS_33
$Comp
L C C18
U 1 1 51B8BF5C
P 6475 7025
F 0 "C18" H 6525 7125 50  0000 L CNN
F 1 "4.7u" H 6525 6925 50  0000 L CNN
F 2 "keyboard_parts:C_3216" H 6475 7025 60  0001 C CNN
F 3 "" H 6475 7025 60  0000 C CNN
	1    6475 7025
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR038
U 1 1 51B8BF6B
P 6475 7275
F 0 "#PWR038" H 6475 7275 30  0001 C CNN
F 1 "GND" H 6475 7205 30  0001 C CNN
F 2 "" H 6475 7275 60  0000 C CNN
F 3 "" H 6475 7275 60  0000 C CNN
	1    6475 7275
	1    0    0    -1  
$EndComp
$Comp
L DIODESCH D2
U 1 1 51B973BC
P 2750 4450
F 0 "D2" H 2750 4550 40  0000 C CNN
F 1 "Schottky diode" H 2750 4350 40  0000 C CNN
F 2 "keyboard_parts:D_SOD123" H 2750 4450 60  0001 C CNN
F 3 "" H 2750 4450 60  0000 C CNN
	1    2750 4450
	-1   0    0    1   
$EndComp
$Comp
L MOSFET_N Q1
U 1 1 51BB5234
P 1400 1775
F 0 "Q1" H 1410 1945 60  0000 R CNN
F 1 "Nch" H 1410 1625 60  0000 R CNN
F 2 "keyboard_parts:MOS_FET_SOT23-3_HSOL" H 1400 1775 60  0001 C CNN
F 3 "" H 1400 1775 60  0000 C CNN
	1    1400 1775
	0    1    1    0   
$EndComp
$Comp
L R R17
U 1 1 51BE9662
P 6200 3475
F 0 "R17" V 6280 3475 50  0000 C CNN
F 1 "10K" V 6200 3475 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 6200 3475 60  0001 C CNN
F 3 "" H 6200 3475 60  0000 C CNN
	1    6200 3475
	1    0    0    -1  
$EndComp
$Comp
L R R18
U 1 1 51BE9671
P 6200 4075
F 0 "R18" V 6280 4075 50  0000 C CNN
F 1 "10K" V 6200 4075 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 6200 4075 60  0001 C CNN
F 3 "" H 6200 4075 60  0000 C CNN
	1    6200 4075
	1    0    0    -1  
$EndComp
Text GLabel 6075 3775 0    60   Input ~ 0
ADC_LIPO
Text Notes 4325 2400 0    60   ~ 0
Voltage Divider for ADC
$Comp
L RN42 U5
U 1 1 52B6CBAC
P 9625 1875
F 0 "U5" H 10225 925 50  0000 C CNN
F 1 "RN42" H 9625 2825 50  0000 C CNN
F 2 "keyboard_parts:RN42" H 9625 1875 60  0001 C CNN
F 3 "" H 9625 1875 60  0000 C CNN
	1    9625 1875
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR039
U 1 1 52B7B3EE
P 9875 3325
F 0 "#PWR039" H 9875 3325 30  0001 C CNN
F 1 "GND" H 9875 3255 30  0001 C CNN
F 2 "" H 9875 3325 60  0000 C CNN
F 3 "" H 9875 3325 60  0000 C CNN
	1    9875 3325
	1    0    0    -1  
$EndComp
Text Label 10775 2325 0    60   ~ 0
TX_33
Text Label 10775 2425 0    60   ~ 0
RX_33
NoConn ~ 9025 1925
NoConn ~ 9025 2025
NoConn ~ 9025 2125
NoConn ~ 9025 2225
NoConn ~ 10225 1925
NoConn ~ 10225 2025
Text Label 8175 1725 0    60   ~ 0
RN42_RST
Text Label 10675 2975 0    60   ~ 0
LED_ACT
Text Label 10675 1625 0    60   ~ 0
LED_STS
Text Label 10725 2125 0    60   ~ 0
CTS_33
Text Label 10725 2225 0    60   ~ 0
RTS_33
NoConn ~ 10225 1725
NoConn ~ 9025 1625
$Comp
L R R16
U 1 1 52B7F2BF
P 10775 3700
F 0 "R16" V 10855 3700 50  0000 C CNN
F 1 "10K" V 10775 3700 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 10775 3700 60  0001 C CNN
F 3 "" H 10775 3700 60  0000 C CNN
	1    10775 3700
	0    1    1    0   
$EndComp
$Comp
L R R19
U 1 1 52B7F2CE
P 10225 3700
F 0 "R19" V 10305 3700 50  0000 C CNN
F 1 "F.RST" V 10225 3700 50  0000 C CNN
F 2 "keyboard_parts:R_1608_NOGUIDE" H 10225 3700 60  0001 C CNN
F 3 "" H 10225 3700 60  0000 C CNN
	1    10225 3700
	0    1    1    0   
$EndComp
Text Label 10325 1525 0    60   ~ 0
FACTORY_RESET
$Comp
L +3.3V #PWR040
U 1 1 52B7F387
P 11075 3700
F 0 "#PWR040" H 11075 3660 30  0001 C CNN
F 1 "+3.3V" H 11075 3810 30  0000 C CNN
F 2 "" H 11075 3700 60  0000 C CNN
F 3 "" H 11075 3700 60  0000 C CNN
	1    11075 3700
	1    0    0    -1  
$EndComp
Text Label 9175 3700 0    60   ~ 0
FACTORY_RESET
Text Notes 9550 4275 0    60   ~ 0
F.RST is not implemented,\nbe shorted with tweezer.\nON-OFF-ON-OFF-ON\nto restore factory default.\nPower on with turning ON.
$Comp
L +3.3V #PWR041
U 1 1 52B7F708
P 7500 2400
F 0 "#PWR041" H 7500 2360 30  0001 C CNN
F 1 "+3.3V" H 7500 2510 30  0000 C CNN
F 2 "" H 7500 2400 60  0000 C CNN
F 3 "" H 7500 2400 60  0000 C CNN
	1    7500 2400
	1    0    0    -1  
$EndComp
$Comp
L R R13
U 1 1 52B7F726
P 7125 2725
F 0 "R13" V 7205 2725 50  0000 C CNN
F 1 "1K" V 7125 2725 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 7125 2725 60  0001 C CNN
F 3 "" H 7125 2725 60  0000 C CNN
	1    7125 2725
	-1   0    0    1   
$EndComp
Text Label 7575 3675 0    60   ~ 0
LED_STS
NoConn ~ 9675 2875
NoConn ~ 9575 2875
NoConn ~ 9475 2875
NoConn ~ 9275 2875
NoConn ~ 9975 2875
$Comp
L R R1
U 1 1 52B840D2
P 2875 1625
F 0 "R1" V 2955 1625 50  0000 C CNN
F 1 "10K" V 2875 1625 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 2875 1625 60  0001 C CNN
F 3 "" H 2875 1625 60  0000 C CNN
	1    2875 1625
	1    0    0    -1  
$EndComp
$Comp
L R R12
U 1 1 52B840D8
P 3775 1625
F 0 "R12" V 3855 1625 50  0000 C CNN
F 1 "10K" V 3775 1625 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 3775 1625 60  0001 C CNN
F 3 "" H 3775 1625 60  0000 C CNN
	1    3775 1625
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR042
U 1 1 52B840DE
P 3775 1025
F 0 "#PWR042" H 3775 1115 20  0001 C CNN
F 1 "+5V" H 3775 1115 30  0000 C CNN
F 2 "" H 3775 1025 60  0000 C CNN
F 3 "" H 3775 1025 60  0000 C CNN
	1    3775 1025
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR043
U 1 1 52B840E4
P 2875 1025
F 0 "#PWR043" H 2875 985 30  0001 C CNN
F 1 "+3.3V" H 2875 1135 30  0000 C CNN
F 2 "" H 2875 1025 60  0000 C CNN
F 3 "" H 2875 1025 60  0000 C CNN
	1    2875 1025
	1    0    0    -1  
$EndComp
Text Label 2775 1875 2    60   ~ 0
RTS_33
Text GLabel 3925 1875 2    60   Input ~ 0
BT_RTS
$Comp
L MOSFET_N Q3
U 1 1 52B840EC
P 3325 1775
F 0 "Q3" H 3335 1945 60  0000 R CNN
F 1 "Nch" H 3335 1625 60  0000 R CNN
F 2 "keyboard_parts:MOS_FET_SOT23-3_HSOL" H 3325 1775 60  0001 C CNN
F 3 "" H 3325 1775 60  0000 C CNN
	1    3325 1775
	0    1    1    0   
$EndComp
Text Label 10625 1325 0    60   ~ 0
SPI_MISO
Text Label 10725 1425 0    60   ~ 0
SPI_SS
Text Label 8175 1425 0    60   ~ 0
SPI_MOSI
Text Label 8175 1825 0    60   ~ 0
SPI_SCK
Text Notes 7425 3975 0    60   ~ 0
1Hz: discoverable and waiting\n10Hz: command mode\nlow: connected
Text Notes 850  2100 0    60   ~ 0
Sparkfan BlueSMiRFHID: https://www.sparkfun.com/products/10938
NoConn ~ 9025 1725
Text Notes 700  5925 0    60   ~ 0
Power Source Selector
Text GLabel 950  6250 0    60   Input ~ 0
VUSB
$Comp
L R R22
U 1 1 5310CA81
P 2650 7150
F 0 "R22" V 2730 7150 50  0000 C CNN
F 1 "10K" V 2650 7150 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 2650 7150 60  0001 C CNN
F 3 "" H 2650 7150 60  0000 C CNN
	1    2650 7150
	1    0    0    -1  
$EndComp
$Comp
L R R21
U 1 1 5310CA90
P 2300 6850
F 0 "R21" V 2380 6850 50  0000 C CNN
F 1 "1K" V 2300 6850 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 2300 6850 60  0001 C CNN
F 3 "" H 2300 6850 60  0000 C CNN
	1    2300 6850
	0    -1   -1   0   
$EndComp
$Comp
L MOS_P Q5
U 1 1 5310CAAE
P 2950 6850
F 0 "Q5" H 2950 7040 60  0000 R CNN
F 1 "Pch" H 2950 6670 60  0000 R CNN
F 2 "keyboard_parts:MOS_FET_SOT23-3_HSOL" H 2950 6850 60  0001 C CNN
F 3 "" H 2950 6850 60  0000 C CNN
	1    2950 6850
	1    0    0    1   
$EndComp
Text Label 3350 6250 0    60   ~ 0
PSEL
$Comp
L GND #PWR044
U 1 1 5310D0A7
P 2650 7450
F 0 "#PWR044" H 2650 7450 30  0001 C CNN
F 1 "GND" H 2650 7380 30  0001 C CNN
F 2 "" H 2650 7450 60  0000 C CNN
F 3 "" H 2650 7450 60  0000 C CNN
	1    2650 7450
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR045
U 1 1 5310EAB1
P 1400 4300
F 0 "#PWR045" H 1400 4390 20  0001 C CNN
F 1 "+5V" H 1400 4390 30  0000 C CNN
F 2 "" H 1400 4300 60  0000 C CNN
F 3 "" H 1400 4300 60  0000 C CNN
	1    1400 4300
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR046
U 1 1 5310EB6D
P 950 2550
F 0 "#PWR046" H 950 2640 20  0001 C CNN
F 1 "+5V" H 950 2640 30  0000 C CNN
F 2 "" H 950 2550 60  0000 C CNN
F 3 "" H 950 2550 60  0000 C CNN
	1    950  2550
	1    0    0    -1  
$EndComp
Text Notes 700  7250 0    60   ~ 0
USB connected: VUSB\nUSB not connected: LIPO
Text Notes 8925 5700 2    60   ~ 0
※Select one of two
Text Label 10325 5200 0    60   ~ 0
LIPO_RAW
$Comp
L +3.3V #PWR047
U 1 1 5315633E
P 10725 5550
F 0 "#PWR047" H 10725 5510 30  0001 C CNN
F 1 "+3.3V" H 10725 5660 30  0000 C CNN
F 2 "" H 10725 5550 60  0000 C CNN
F 3 "" H 10725 5550 60  0000 C CNN
	1    10725 5550
	1    0    0    -1  
$EndComp
Text Label 9275 5300 0    60   ~ 0
LIPO_SW
Text Label 3200 7250 0    60   ~ 0
LIPO_SW
Text Label 3925 6175 0    60   ~ 0
LIPO_RAW
$Comp
L +3.3V #PWR048
U 1 1 5316AB09
P 8325 2225
F 0 "#PWR048" H 8325 2185 30  0001 C CNN
F 1 "+3.3V" H 8325 2335 30  0000 C CNN
F 2 "" H 8325 2225 60  0000 C CNN
F 3 "" H 8325 2225 60  0000 C CNN
	1    8325 2225
	1    0    0    -1  
$EndComp
Text Notes 9125 4850 0    60   ~ 0
Switch BT/USB
$Comp
L R R23
U 1 1 53177DD7
P 5250 1100
F 0 "R23" V 5330 1100 50  0000 C CNN
F 1 "10K" V 5250 1100 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5250 1100 60  0001 C CNN
F 3 "" H 5250 1100 60  0000 C CNN
	1    5250 1100
	1    0    0    -1  
$EndComp
$Comp
L R R24
U 1 1 53177DDD
P 5250 1700
F 0 "R24" V 5330 1700 50  0000 C CNN
F 1 "15K" V 5250 1700 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5250 1700 60  0001 C CNN
F 3 "" H 5250 1700 60  0000 C CNN
	1    5250 1700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR049
U 1 1 53177DE3
P 5250 2050
F 0 "#PWR049" H 5250 2050 30  0001 C CNN
F 1 "GND" H 5250 1980 30  0001 C CNN
F 2 "" H 5250 2050 60  0000 C CNN
F 3 "" H 5250 2050 60  0000 C CNN
	1    5250 2050
	1    0    0    -1  
$EndComp
Text Label 5150 1400 2    60   ~ 0
CTS_33
Text GLabel 5300 700  2    60   Input ~ 0
BT_CTS
Text Label 5000 2500 0    60   ~ 0
LIPO_RAW
Text GLabel 7300 4200 2    60   Input ~ 0
BT_INDICATOR
$Comp
L R R25
U 1 1 531B36B1
P 7500 2725
F 0 "R25" V 7580 2725 50  0000 C CNN
F 1 "1K" V 7500 2725 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 7500 2725 60  0001 C CNN
F 3 "" H 7500 2725 60  0000 C CNN
	1    7500 2725
	1    0    0    -1  
$EndComp
$Comp
L LED D10
U 1 1 531B36CF
P 7700 3275
F 0 "D10" H 7700 3375 50  0000 C CNN
F 1 "LED" H 7700 3175 50  0000 C CNN
F 2 "keyboard_parts:LED_TH" H 7700 3275 60  0001 C CNN
F 3 "" H 7700 3275 60  0000 C CNN
	1    7700 3275
	0    1    1    0   
$EndComp
Text Notes 8125 3025 2    60   ~ 0
※Select one of two
$Comp
L CONN_1 P114
U 1 1 531B5A15
P 7200 1600
F 0 "P114" H 7280 1600 40  0000 L CNN
F 1 "CONN_1" H 7200 1655 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 7200 1600 60  0001 C CNN
F 3 "" H 7200 1600 60  0000 C CNN
	1    7200 1600
	-1   0    0    1   
$EndComp
Text Label 7750 1600 2    60   ~ 0
CTS_33
Text Notes 9800 6300 0    60   ~ 0
On: Bluetooth mode\nOff: USB mode or BT off
$Comp
L SW_DPDT SW2
U 1 1 531D7FAB
P 9975 5500
F 0 "SW2" H 9975 5900 60  0000 C CNN
F 1 "SW_DPDT" H 9975 5100 60  0000 C CNN
F 2 "keyboard_parts:SW_MINI_SLIDE" H 9925 5500 60  0001 C CNN
F 3 "" H 9925 5500 60  0000 C CNN
	1    9975 5500
	1    0    0    -1  
$EndComp
NoConn ~ 10275 5750
NoConn ~ 10275 5400
Text Label 3500 2650 0    60   ~ 0
3.3V_OUT
Text Label 9275 5650 0    60   ~ 0
3.3V_OUT
Text Notes 1800 4275 0    60   ~ 0
MBR0520LT1 20V 1A\nRMB160M-30 30V 1A*
Text Notes 3100 4275 0    60   ~ 0
Sumida CD54−470L 0.72A\nSumida CDRH5D28NP-470NC 0.62A\nSumida CDRH6D38NP-470NC 0.95A*\nTOKO #A921CY-470M 0.89A
$Comp
L DIODESCH D11
U 1 1 53B54501
P 2300 6250
F 0 "D11" H 2450 6300 40  0000 C CNN
F 1 "Schottky diode" H 2300 6150 40  0000 C CNN
F 2 "keyboard_parts:D_SOD123" H 2300 6250 60  0001 C CNN
F 3 "" H 2300 6250 60  0000 C CNN
	1    2300 6250
	1    0    0    -1  
$EndComp
$Comp
L C C16
U 1 1 53B56B73
P 4525 7025
F 0 "C16" H 4575 7125 50  0000 L CNN
F 1 "4.7u" H 4575 6925 50  0000 L CNN
F 2 "keyboard_parts:C_3216" H 4525 7025 60  0001 C CNN
F 3 "" H 4525 7025 60  0000 C CNN
	1    4525 7025
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR050
U 1 1 53B572EF
P 4525 7275
F 0 "#PWR050" H 4525 7275 30  0001 C CNN
F 1 "GND" H 4525 7205 30  0001 C CNN
F 2 "" H 4525 7275 60  0000 C CNN
F 3 "" H 4525 7275 60  0000 C CNN
	1    4525 7275
	1    0    0    -1  
$EndComp
NoConn ~ 11025 2975
Text Label 8175 1525 0    60   ~ 0
CONN
$Comp
L R R14
U 1 1 53B62185
P 5900 1100
F 0 "R14" V 5980 1100 50  0000 C CNN
F 1 "10K" V 5900 1100 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5900 1100 60  0001 C CNN
F 3 "" H 5900 1100 60  0000 C CNN
	1    5900 1100
	1    0    0    -1  
$EndComp
Text GLabel 5950 700  2    60   Input ~ 0
BT_CONN
Text Label 5575 1400 0    60   ~ 0
CONN
$Comp
L R R20
U 1 1 53C6B426
P 5900 1700
F 0 "R20" V 5980 1700 50  0000 C CNN
F 1 "15K" V 5900 1700 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5900 1700 60  0001 C CNN
F 3 "" H 5900 1700 60  0000 C CNN
	1    5900 1700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR051
U 1 1 53C70129
P 5900 2050
F 0 "#PWR051" H 5900 2050 30  0001 C CNN
F 1 "GND" H 5900 1980 30  0001 C CNN
F 2 "" H 5900 2050 60  0000 C CNN
F 3 "" H 5900 2050 60  0000 C CNN
	1    5900 2050
	1    0    0    -1  
$EndComp
Text GLabel 5050 7025 2    60   Input ~ 0
~CHRG
Text GLabel 10675 1825 2    60   Input ~ 0
LINKED
Text Notes 10675 1975 0    60   ~ 0
Hi: linked
Text Notes 5650 925  0    60   ~ 0
Hi: auto-connecting\nLo: dis-connect
Text Notes 5000 7275 0    60   ~ 0
Hi: not charging\nLo: charging
NoConn ~ 10225 1325
NoConn ~ 10225 1425
NoConn ~ 9025 1425
NoConn ~ 9025 1825
$Comp
L PWR_FLAG #FLG052
U 1 1 531F4430
P 10725 5675
F 0 "#FLG052" H 10725 5770 30  0001 C CNN
F 1 "PWR_FLAG" H 10725 5855 30  0000 C CNN
F 2 "" H 10725 5675 60  0000 C CNN
F 3 "" H 10725 5675 60  0000 C CNN
	1    10725 5675
	-1   0    0    1   
$EndComp
Text Label 8350 5100 0    60   ~ 0
PSEL
$Comp
L LED_DUAL D9
U 1 1 540D8D13
P 7175 3275
F 0 "D9" H 7175 3475 50  0000 C CNN
F 1 "LED_DUAL" H 7175 3125 50  0000 C CNN
F 2 "keyboard_parts:LED_3025_DUAL" H 7175 3375 60  0001 C CNN
F 3 "" H 7175 3375 60  0000 C CNN
	1    7175 3275
	0    1    1    0   
$EndComp
$Comp
L LED_DUAL D3
U 1 1 540E541B
P 7975 5950
F 0 "D3" H 7975 6150 50  0000 C CNN
F 1 "LED_DUAL" H 7975 5800 50  0000 C CNN
F 2 "keyboard_parts:LED_3025_DUAL" H 7975 6050 60  0001 C CNN
F 3 "" H 7975 6050 60  0000 C CNN
	1    7975 5950
	0    1    1    0   
$EndComp
Text Label 5000 6350 0    60   ~ 0
~CHRG
Text Label 8325 6350 0    60   ~ 0
~CHRG
$Comp
L GND #PWR053
U 1 1 540E71E7
P 7925 6300
F 0 "#PWR053" H 7925 6300 30  0001 C CNN
F 1 "GND" H 7925 6230 30  0001 C CNN
F 2 "" H 7925 6300 60  0000 C CNN
F 3 "" H 7925 6300 60  0000 C CNN
	1    7925 6300
	1    0    0    -1  
$EndComp
$Comp
L R R26
U 1 1 540E7519
P 7925 5425
F 0 "R26" V 8005 5425 50  0000 C CNN
F 1 "1K" V 7925 5425 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 7925 5425 60  0001 C CNN
F 3 "" H 7925 5425 60  0000 C CNN
	1    7925 5425
	1    0    0    -1  
$EndComp
Text Label 1475 6250 0    60   ~ 0
VUSB_IN
Text Label 7525 5100 0    60   ~ 0
VUSB_IN
Text Notes 7550 4850 0    60   ~ 0
Power Indicator
Text Label 5900 6350 0    60   ~ 0
VUSB_IN
$Comp
L MOSFET_N Q10
U 1 1 54111581
P 5600 3325
F 0 "Q10" H 5610 3495 60  0000 R CNN
F 1 "Nch" H 5610 3175 60  0000 R CNN
F 2 "keyboard_parts:MOS_FET_SOT23-3_HSOL" H 5600 3325 60  0001 C CNN
F 3 "" H 5600 3325 60  0000 C CNN
	1    5600 3325
	1    0    0    -1  
$EndComp
$Comp
L R R30
U 1 1 541122C6
P 5300 3650
F 0 "R30" V 5380 3650 50  0000 C CNN
F 1 "10K" V 5300 3650 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5300 3650 60  0001 C CNN
F 3 "" H 5300 3650 60  0000 C CNN
	1    5300 3650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR054
U 1 1 54112C18
P 5300 3950
F 0 "#PWR054" H 5300 3950 30  0001 C CNN
F 1 "GND" H 5300 3880 30  0001 C CNN
F 2 "" H 5300 3950 60  0000 C CNN
F 3 "" H 5300 3950 60  0000 C CNN
	1    5300 3950
	1    0    0    -1  
$EndComp
Text GLabel 5200 3325 0    60   Input ~ 0
ADC_CTRL
Text Notes 5450 4175 0    60   ~ 0
Z<=10KOhm
Text Notes 3400 3075 0    60   ~ 0
X5R
Text Notes 1350 3075 0    60   ~ 0
X5R
$Comp
L GND #PWR055
U 1 1 51BE968F
P 6200 4375
F 0 "#PWR055" H 6200 4375 30  0001 C CNN
F 1 "GND" H 6200 4305 30  0001 C CNN
F 2 "" H 6200 4375 60  0000 C CNN
F 3 "" H 6200 4375 60  0000 C CNN
	1    6200 4375
	1    0    0    -1  
$EndComp
$Comp
L MOSFET_P Q4
U 1 1 5452928D
P 6100 2950
F 0 "Q4" H 6100 3140 60  0000 R CNN
F 1 "Pch" H 6100 2770 60  0000 R CNN
F 2 "keyboard_parts:MOS_FET_SOT23-3_HSOL" H 6100 2950 60  0001 C CNN
F 3 "" H 6100 2950 60  0000 C CNN
	1    6100 2950
	1    0    0    1   
$EndComp
$Comp
L GND #PWR056
U 1 1 5452B28D
P 5700 3575
F 0 "#PWR056" H 5700 3575 30  0001 C CNN
F 1 "GND" H 5700 3505 30  0001 C CNN
F 2 "" H 5700 3575 60  0000 C CNN
F 3 "" H 5700 3575 60  0000 C CNN
	1    5700 3575
	1    0    0    -1  
$EndComp
$Comp
L R R27
U 1 1 5452E6B7
P 5700 2775
F 0 "R27" V 5780 2775 50  0000 C CNN
F 1 "10K" V 5700 2775 50  0000 C CNN
F 2 "keyboard_parts:R_1608" H 5700 2775 60  0001 C CNN
F 3 "" H 5700 2775 60  0000 C CNN
	1    5700 2775
	1    0    0    -1  
$EndComp
Text Notes 4300 7700 0    60   ~ 12
NOTE: Use 73832. 73831 leaks from VCC\nwhen no USB power
$Comp
L CONN_1 P15
U 1 1 54862C03
P 6175 5325
F 0 "P15" H 6255 5325 40  0000 L CNN
F 1 "CONN_1" H 6175 5380 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 6175 5325 60  0001 C CNN
F 3 "" H 6175 5325 60  0000 C CNN
	1    6175 5325
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P13
U 1 1 54862C9E
P 6175 5225
F 0 "P13" H 6255 5225 40  0000 L CNN
F 1 "CONN_1" H 6175 5280 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 6175 5225 60  0001 C CNN
F 3 "" H 6175 5225 60  0000 C CNN
	1    6175 5225
	1    0    0    -1  
$EndComp
Wire Notes Line
	6575 2200 6575 575 
Wire Wire Line
	5900 1950 5900 2050
Connection ~ 5900 1400
Wire Wire Line
	5900 1400 5575 1400
Wire Wire Line
	5900 1350 5900 1450
Wire Wire Line
	5900 700  5900 850 
Wire Wire Line
	5950 700  5900 700 
Wire Wire Line
	9025 1525 8175 1525
Wire Wire Line
	4525 7225 4525 7275
Wire Wire Line
	8325 2325 9025 2325
Wire Wire Line
	8325 2225 8325 2325
Wire Wire Line
	950  2550 950  2650
Wire Wire Line
	11025 2125 10225 2125
Wire Wire Line
	7350 1600 7750 1600
Wire Wire Line
	7500 2400 7500 2475
Wire Wire Line
	7500 3075 7500 2975
Connection ~ 6475 6525
Wire Wire Line
	6475 6350 6475 6825
Wire Wire Line
	4525 6175 4525 6825
Wire Notes Line
	650  5600 5050 5600
Wire Notes Line
	3800 7550 700  7550
Wire Wire Line
	2475 1875 3125 1875
Wire Wire Line
	600  1875 1200 1875
Wire Wire Line
	1600 1875 2000 1875
Wire Wire Line
	3525 1875 3925 1875
Wire Wire Line
	5250 700  5300 700 
Wire Wire Line
	5250 1400 4900 1400
Connection ~ 5250 1400
Wire Wire Line
	5250 1350 5250 1450
Wire Wire Line
	5250 1950 5250 2050
Wire Wire Line
	5250 700  5250 850 
Wire Wire Line
	4650 700  4700 700 
Wire Wire Line
	4650 1400 4300 1400
Wire Notes Line
	3800 5950 3800 7550
Wire Wire Line
	2850 2650 3900 2650
Wire Wire Line
	9675 5650 9275 5650
Wire Wire Line
	9675 5300 9275 5300
Wire Wire Line
	10275 5200 10725 5200
Connection ~ 1400 4450
Wire Wire Line
	1400 4300 1400 4450
Wire Wire Line
	4475 6725 4725 6725
Connection ~ 4725 6725
Wire Wire Line
	4475 6525 4975 6525
Wire Wire Line
	4975 6625 4725 6625
Wire Wire Line
	4725 6425 4725 6975
Wire Wire Line
	2050 4900 2150 4900
Wire Wire Line
	2050 4450 2050 4900
Wire Wire Line
	1150 4450 2550 4450
Wire Wire Line
	2950 4450 3650 4450
Wire Wire Line
	3400 4450 3400 4800
Wire Wire Line
	3400 4800 3250 4800
Connection ~ 3400 4450
Wire Wire Line
	4150 4450 4700 4450
Wire Wire Line
	4350 4450 4350 4650
Connection ~ 4350 4450
Connection ~ 2050 4450
Wire Wire Line
	1600 4650 1600 4450
Connection ~ 1600 4450
Wire Wire Line
	4350 5050 4350 5150
Wire Wire Line
	1600 5050 1600 5150
Wire Wire Line
	3250 5000 3400 5000
Wire Wire Line
	3400 5000 3400 5150
Wire Wire Line
	2150 4800 2050 4800
Connection ~ 2050 4800
Wire Wire Line
	950  2650 1750 2650
Connection ~ 1250 2650
Connection ~ 3300 2650
Wire Wire Line
	3300 3050 3300 3150
Wire Wire Line
	1250 3150 1250 3050
Wire Wire Line
	1750 2750 1650 2750
Wire Wire Line
	1650 2750 1650 3150
Wire Wire Line
	1750 2850 1500 2850
Wire Wire Line
	1500 2850 1500 2650
Connection ~ 1500 2650
Wire Wire Line
	1400 1175 1400 1575
Connection ~ 950  1175
Wire Wire Line
	950  1025 950  1375
Wire Wire Line
	1850 1025 1850 1375
Connection ~ 1850 1875
Connection ~ 950  1875
Connection ~ 4650 1400
Wire Wire Line
	4650 1350 4650 1450
Wire Wire Line
	4650 1950 4650 2050
Wire Wire Line
	4650 700  4650 850 
Wire Wire Line
	1400 1175 950  1175
Wire Wire Line
	4875 6725 4975 6725
Wire Wire Line
	6075 6725 6175 6725
Wire Wire Line
	6175 7275 6175 7225
Wire Wire Line
	7350 1150 7750 1150
Wire Wire Line
	7350 1000 7850 1000
Wire Wire Line
	7350 1450 7850 1450
Wire Wire Line
	7350 1300 7750 1300
Wire Wire Line
	7350 1750 7750 1750
Wire Wire Line
	6475 7225 6475 7275
Wire Wire Line
	3925 6175 4725 6175
Wire Wire Line
	4875 6350 4875 7025
Wire Wire Line
	6200 3725 6200 3825
Connection ~ 6200 3775
Connection ~ 4525 6525
Wire Wire Line
	9375 2875 9375 3075
Wire Wire Line
	8875 3075 9875 3075
Wire Wire Line
	9875 2875 9875 3325
Connection ~ 9875 3075
Wire Wire Line
	9025 1325 8875 1325
Wire Wire Line
	8875 1325 8875 3075
Connection ~ 9375 3075
Wire Wire Line
	9025 2425 8875 2425
Connection ~ 8875 2425
Wire Wire Line
	10225 2325 11025 2325
Wire Wire Line
	10225 2425 11025 2425
Wire Wire Line
	10225 1325 11025 1325
Wire Wire Line
	10225 1425 11025 1425
Wire Wire Line
	9025 1725 8175 1725
Wire Wire Line
	9025 1825 8175 1825
Wire Wire Line
	9025 1425 8175 1425
Wire Wire Line
	9775 2875 9775 2975
Wire Wire Line
	9775 2975 11025 2975
Wire Wire Line
	10225 1625 11025 1625
Wire Wire Line
	10225 2225 11025 2225
Wire Wire Line
	10225 1525 11025 1525
Wire Wire Line
	9175 3700 9975 3700
Wire Wire Line
	3325 1175 3325 1575
Connection ~ 2875 1175
Wire Wire Line
	2875 1025 2875 1375
Wire Wire Line
	3775 1025 3775 1375
Connection ~ 3775 1875
Connection ~ 2875 1875
Wire Wire Line
	3325 1175 2875 1175
Wire Wire Line
	950  6250 2100 6250
Wire Wire Line
	1900 6250 1900 6850
Wire Wire Line
	1900 6850 2050 6850
Connection ~ 1900 6250
Wire Wire Line
	2550 6850 2750 6850
Wire Wire Line
	2650 6900 2650 6850
Connection ~ 2650 6850
Wire Wire Line
	2650 7400 2650 7450
Wire Wire Line
	3050 6650 3050 6250
Connection ~ 3050 6250
Wire Wire Line
	3050 7050 3050 7250
Wire Wire Line
	3050 7250 3550 7250
Wire Wire Line
	2500 6250 3550 6250
Wire Notes Line
	675  2200 6575 2200
Wire Wire Line
	6025 5050 6025 5325
Wire Wire Line
	7850 1450 7850 1550
Connection ~ 4875 6725
Wire Wire Line
	4875 7025 5050 7025
Wire Wire Line
	10225 1825 10675 1825
Wire Wire Line
	10275 5550 10725 5550
Wire Wire Line
	10725 5550 10725 5675
Connection ~ 10725 5625
Wire Wire Line
	8275 5100 8575 5100
Wire Wire Line
	10475 3700 10525 3700
Wire Wire Line
	11025 3700 11075 3700
Connection ~ 7500 3075
Connection ~ 7500 3475
Wire Wire Line
	7275 3475 7700 3475
Wire Wire Line
	7275 3075 7700 3075
Wire Wire Line
	7500 3475 7500 3675
Wire Wire Line
	7500 3675 7950 3675
Wire Wire Line
	7125 3075 7125 2975
Wire Wire Line
	7500 2425 7125 2425
Wire Wire Line
	7125 2425 7125 2475
Connection ~ 7500 2425
Wire Wire Line
	7125 3475 7125 4200
Wire Wire Line
	7125 4200 7300 4200
Wire Notes Line
	6575 4475 11075 4475
Wire Notes Line
	6575 2300 6575 4475
Wire Wire Line
	8075 6150 8475 6150
Wire Wire Line
	8075 5750 8475 5750
Wire Wire Line
	8275 5100 8275 5175
Wire Wire Line
	8275 5675 8275 5750
Connection ~ 8275 5750
Wire Wire Line
	4875 6350 5250 6350
Wire Wire Line
	8275 6150 8275 6350
Connection ~ 8275 6150
Wire Wire Line
	8275 6350 8575 6350
Wire Wire Line
	7925 6150 7925 6300
Wire Wire Line
	7925 5750 7925 5675
Wire Wire Line
	7925 5100 7925 5175
Wire Wire Line
	7525 5100 7925 5100
Wire Wire Line
	6475 6525 6075 6525
Wire Wire Line
	6200 4375 6200 4325
Wire Wire Line
	5900 6350 6475 6350
Wire Wire Line
	6200 3775 6075 3775
Wire Notes Line
	4200 2375 4200 3650
Wire Notes Line
	4200 3650 675  3650
Wire Wire Line
	5200 3325 5400 3325
Wire Wire Line
	5300 3400 5300 3325
Connection ~ 5300 3325
Wire Wire Line
	5325 3600 5325 3650
Wire Wire Line
	5700 3525 5700 3575
Wire Wire Line
	6200 3150 6200 3225
Wire Notes Line
	4300 3650 5050 3650
Wire Notes Line
	6500 4475 5050 4475
Wire Notes Line
	5050 4475 5050 3650
Wire Wire Line
	6200 2500 6200 2750
Wire Wire Line
	5000 2500 6200 2500
Wire Wire Line
	5700 3025 5700 3125
Wire Wire Line
	5700 2525 5700 2500
Connection ~ 5700 2500
Wire Wire Line
	5900 2950 5850 2950
Wire Wire Line
	5850 2950 5850 3075
Wire Wire Line
	5850 3075 5700 3075
Connection ~ 5700 3075
Wire Wire Line
	5300 3900 5300 3950
Wire Notes Line
	5050 5600 5050 4525
Connection ~ 6025 5325
Connection ~ 6025 5225
$Comp
L +5V #PWR057
U 1 1 5486405C
P 5575 5050
F 0 "#PWR057" H 5575 5140 20  0001 C CNN
F 1 "+5V" H 5575 5140 30  0000 C CNN
F 2 "" H 5575 5050 60  0000 C CNN
F 3 "" H 5575 5050 60  0000 C CNN
	1    5575 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5575 5050 5575 5325
$Comp
L CONN_1 P14
U 1 1 54864365
P 5725 5325
F 0 "P14" H 5805 5325 40  0000 L CNN
F 1 "CONN_1" H 5725 5380 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 5725 5325 60  0001 C CNN
F 3 "" H 5725 5325 60  0000 C CNN
	1    5725 5325
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P12
U 1 1 5486436B
P 5725 5225
F 0 "P12" H 5805 5225 40  0000 L CNN
F 1 "CONN_1" H 5725 5280 30  0001 C CNN
F 2 "keyboard_parts:PIN_1" H 5725 5225 60  0001 C CNN
F 3 "" H 5725 5225 60  0000 C CNN
	1    5725 5225
	1    0    0    -1  
$EndComp
Connection ~ 5575 5325
Connection ~ 5575 5225
Text Notes 5450 4825 0    60   ~ 0
Current measure
$Comp
L +3.3V #PWR058
U 1 1 54867546
P 7850 950
F 0 "#PWR058" H 7850 910 30  0001 C CNN
F 1 "+3.3V" H 7850 1060 30  0000 C CNN
F 2 "" H 7850 950 60  0000 C CNN
F 3 "" H 7850 950 60  0000 C CNN
	1    7850 950 
	1    0    0    -1  
$EndComp
Wire Wire Line
	7850 1000 7850 950 
$Comp
L LDO_REGULATOR U2
U 1 1 51B41FD3
P 2300 2750
F 0 "U2" H 2300 2550 60  0000 C CNN
F 1 "MIC5504-3.3YMTR" H 2300 2950 60  0000 C CNN
F 2 "keyboard_parts:SOT23-5_HSOL" H 2300 2750 60  0001 C CNN
F 3 "" H 2300 2750 60  0000 C CNN
	1    2300 2750
	1    0    0    -1  
$EndComp
NoConn ~ 2850 2850
$Comp
L D D5
U 1 1 57789BAF
P 4725 6275
F 0 "D5" V 4575 6225 60  0000 C CNN
F 1 "D" V 4875 6225 60  0001 C CNN
F 2 "keyboard_parts:D_SOD123" H 4725 6275 60  0001 C CNN
F 3 "" H 4725 6275 60  0000 C CNN
	1    4725 6275
	1    0    0    -1  
$EndComp
Wire Wire Line
	4725 6175 4725 6225
Connection ~ 4525 6175
Connection ~ 4725 6625
Text Notes 5100 6125 0    60   ~ 12
D5: Reverse polarity protection diode\nThis depends on prerequisite that battery has\nprotection circuit in itself.
$EndSCHEMATC