EESchema Schematic File Version 4 EELAYER 29 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 2 2 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L Regulator_Linear:LT1117-3.3 U3 U 1 1 5D3F0762 P 3800 1150 F 0 "U3" H 3800 1392 50 0000 C CNN F 1 "LT1117-3.3" H 3800 1301 50 0000 C CNN F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 3800 1150 50 0001 C CNN F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/1117fd.pdf" H 3800 1150 50 0001 C CNN 1 3800 1150 1 0 0 -1 $EndComp Wire Wire Line 3500 1150 3350 1150 Wire Wire Line 1050 3200 1050 3400 Wire Wire Line 1050 3400 1150 3400 Wire Wire Line 1150 3400 1150 3200 Wire Wire Line 1150 3400 1150 3600 Connection ~ 1150 3400 $Comp L power:GND #PWR09 U 1 1 5D3F0774 P 1150 3600 F 0 "#PWR09" H 1150 3350 50 0001 C CNN F 1 "GND" H 1155 3427 50 0000 C CNN F 2 "" H 1150 3600 50 0001 C CNN F 3 "" H 1150 3600 50 0001 C CNN 1 1150 3600 1 0 0 -1 $EndComp $Comp L power:GND #PWR011 U 1 1 5D3F077A P 3800 1550 F 0 "#PWR011" H 3800 1300 50 0001 C CNN F 1 "GND" H 3805 1377 50 0000 C CNN F 2 "" H 3800 1550 50 0001 C CNN F 3 "" H 3800 1550 50 0001 C CNN 1 3800 1550 1 0 0 -1 $EndComp Wire Wire Line 3800 1450 3800 1500 $Comp L power:+3.3V #PWR012 U 1 1 5D3F0781 P 4250 1050 F 0 "#PWR012" H 4250 900 50 0001 C CNN F 1 "+3.3V" H 4265 1223 50 0000 C CNN F 2 "" H 4250 1050 50 0001 C CNN F 3 "" H 4250 1050 50 0001 C CNN 1 4250 1050 1 0 0 -1 $EndComp Wire Wire Line 5950 1450 5950 1550 Wire Wire Line 5950 1550 6050 1550 Wire Wire Line 6350 1550 6350 1700 Connection ~ 5950 1550 Wire Wire Line 5950 1550 5950 1700 Wire Wire Line 6250 1700 6250 1550 Connection ~ 6250 1550 Wire Wire Line 6250 1550 6350 1550 Wire Wire Line 6150 1550 6150 1700 Connection ~ 6150 1550 Wire Wire Line 6150 1550 6250 1550 Wire Wire Line 6050 1550 6050 1700 Connection ~ 6050 1550 Wire Wire Line 6050 1550 6150 1550 Wire Wire Line 4250 1050 4250 1150 Wire Wire Line 4250 1150 4100 1150 $Comp L power:GND #PWR019 U 1 1 5D3F0797 P 5950 5050 F 0 "#PWR019" H 5950 4800 50 0001 C CNN F 1 "GND" H 5955 4877 50 0000 C CNN F 2 "" H 5950 5050 50 0001 C CNN F 3 "" H 5950 5050 50 0001 C CNN 1 5950 5050 1 0 0 -1 $EndComp Wire Wire Line 5950 4700 5950 4950 Wire Wire Line 6050 4700 6050 4950 Wire Wire Line 6050 4950 5950 4950 Connection ~ 5950 4950 Wire Wire Line 5950 4950 5950 5050 Wire Wire Line 6150 4700 6150 4950 Wire Wire Line 6150 4950 6050 4950 Connection ~ 6050 4950 Wire Wire Line 6250 4700 6250 4950 Wire Wire Line 6250 4950 6150 4950 Connection ~ 6150 4950 $Comp L Device:C C33 U 1 1 5D3F07A8 P 7050 1750 F 0 "C33" H 7165 1796 50 0000 L CNN F 1 "100n" H 7165 1705 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 7088 1600 50 0001 C CNN F 3 "~" H 7050 1750 50 0001 C CNN 1 7050 1750 1 0 0 -1 $EndComp $Comp L Device:C C34 U 1 1 5D3F07AE P 7400 1750 F 0 "C34" H 7515 1796 50 0000 L CNN F 1 "100n" H 7515 1705 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 7438 1600 50 0001 C CNN F 3 "~" H 7400 1750 50 0001 C CNN 1 7400 1750 1 0 0 -1 $EndComp Wire Wire Line 6350 1550 7050 1550 Wire Wire Line 7400 1550 7400 1600 Connection ~ 6350 1550 Wire Wire Line 7050 1600 7050 1550 Connection ~ 7050 1550 Wire Wire Line 7050 1550 7400 1550 $Comp L power:GND #PWR021 U 1 1 5D3F07BA P 7650 2000 F 0 "#PWR021" H 7650 1750 50 0001 C CNN F 1 "GND" H 7655 1827 50 0000 C CNN F 2 "" H 7650 2000 50 0001 C CNN F 3 "" H 7650 2000 50 0001 C CNN 1 7650 2000 1 0 0 -1 $EndComp Wire Wire Line 7650 2000 7400 2000 Wire Wire Line 7400 2000 7400 1900 Wire Wire Line 7400 2000 7050 2000 Wire Wire Line 7050 2000 7050 1900 Connection ~ 7400 2000 $Comp L Device:C C32 U 1 1 5D3F07C5 P 4250 1300 F 0 "C32" H 4365 1346 50 0000 L CNN F 1 "100n" H 4365 1255 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 4288 1150 50 0001 C CNN F 3 "~" H 4250 1300 50 0001 C CNN 1 4250 1300 1 0 0 -1 $EndComp Connection ~ 4250 1150 $Comp L Device:C C27 U 1 1 5D3F07CC P 3350 1300 F 0 "C27" H 3465 1346 50 0000 L CNN F 1 "100n" H 3465 1255 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 3388 1150 50 0001 C CNN F 3 "~" H 3350 1300 50 0001 C CNN 1 3350 1300 1 0 0 -1 $EndComp Connection ~ 3350 1150 Wire Wire Line 3350 1450 3350 1500 Wire Wire Line 3350 1500 3800 1500 Connection ~ 3800 1500 Wire Wire Line 3800 1500 3800 1550 Wire Wire Line 3800 1500 4250 1500 Wire Wire Line 4250 1500 4250 1450 $Comp L Device:R R3 U 1 1 5D3F07DA P 3400 2550 F 0 "R3" H 3470 2596 50 0000 L CNN F 1 "1k5" H 3470 2505 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 3330 2550 50 0001 C CNN F 3 "~" H 3400 2550 50 0001 C CNN 1 3400 2550 1 0 0 -1 $EndComp $Comp L power:+3.3V #PWR013 U 1 1 5D3F07E0 P 3400 2300 F 0 "#PWR013" H 3400 2150 50 0001 C CNN F 1 "+3.3V" H 3415 2473 50 0000 C CNN F 2 "" H 3400 2300 50 0001 C CNN F 3 "" H 3400 2300 50 0001 C CNN 1 3400 2300 1 0 0 -1 $EndComp Wire Wire Line 3400 2300 3400 2400 Wire Wire Line 3400 2700 3400 2800 $Comp L Switch:SW_Push RESET1 U 1 1 5D3F07EE P 5000 1900 F 0 "RESET1" H 5000 2185 50 0000 C CNN F 1 "SW_Push" H 5000 2094 50 0000 C CNN F 2 "Button_Switch_THT:SW_PUSH_6mm" H 5000 2100 50 0001 C CNN F 3 "~" H 5000 2100 50 0001 C CNN 1 5000 1900 1 0 0 -1 $EndComp $Comp L Device:R R4 U 1 1 5D3F07F4 P 5300 1600 F 0 "R4" H 5370 1646 50 0000 L CNN F 1 "10k" H 5370 1555 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 5230 1600 50 0001 C CNN F 3 "~" H 5300 1600 50 0001 C CNN 1 5300 1600 1 0 0 -1 $EndComp Wire Wire Line 5300 1750 5300 1900 Wire Wire Line 5300 1900 5450 1900 Wire Wire Line 5300 1900 5200 1900 Connection ~ 5300 1900 $Comp L power:+3.3V #PWR018 U 1 1 5D3F07FE P 5950 1450 F 0 "#PWR018" H 5950 1300 50 0001 C CNN F 1 "+3.3V" H 5965 1623 50 0000 C CNN F 2 "" H 5950 1450 50 0001 C CNN F 3 "" H 5950 1450 50 0001 C CNN 1 5950 1450 1 0 0 -1 $EndComp $Comp L power:+3.3V #PWR017 U 1 1 5D3F0804 P 5300 1400 F 0 "#PWR017" H 5300 1250 50 0001 C CNN F 1 "+3.3V" H 5315 1573 50 0000 C CNN F 2 "" H 5300 1400 50 0001 C CNN F 3 "" H 5300 1400 50 0001 C CNN 1 5300 1400 1 0 0 -1 $EndComp Wire Wire Line 5300 1400 5300 1450 $Comp L power:GND #PWR014 U 1 1 5D3F080B P 4550 1900 F 0 "#PWR014" H 4550 1650 50 0001 C CNN F 1 "GND" H 4555 1727 50 0000 C CNN F 2 "" H 4550 1900 50 0001 C CNN F 3 "" H 4550 1900 50 0001 C CNN 1 4550 1900 0 1 1 0 $EndComp Text GLabel 3600 2900 2 50 Input ~ 0 USB_N Text GLabel 3600 2800 2 50 Input ~ 0 USB_P Wire Wire Line 3400 2800 3600 2800 Wire Wire Line 6750 4200 7050 4200 Text GLabel 7050 4200 2 50 Input ~ 0 USB_P Text GLabel 7050 4100 2 50 Input ~ 0 USB_N Wire Wire Line 7050 4100 6750 4100 $Comp L Device:LED D1 U 1 1 5D3F081A P 8200 4150 F 0 "D1" V 8239 4033 50 0000 R CNN F 1 "LED" V 8148 4033 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 8200 4150 50 0001 C CNN F 3 "~" H 8200 4150 50 0001 C CNN 1 8200 4150 0 -1 -1 0 $EndComp $Comp L Device:R R5 U 1 1 5D3F0820 P 8200 4550 F 0 "R5" H 8270 4596 50 0000 L CNN F 1 "270" H 8270 4505 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 8130 4550 50 0001 C CNN F 3 "~" H 8200 4550 50 0001 C CNN 1 8200 4550 1 0 0 -1 $EndComp Wire Wire Line 8200 4300 8200 4400 $Comp L power:GND #PWR022 U 1 1 5D3F0827 P 8200 4800 F 0 "#PWR022" H 8200 4550 50 0001 C CNN F 1 "GND" H 8205 4627 50 0000 C CNN F 2 "" H 8200 4800 50 0001 C CNN F 3 "" H 8200 4800 50 0001 C CNN 1 8200 4800 1 0 0 -1 $EndComp Wire Wire Line 8200 4700 8200 4800 Wire Notes Line 8050 5100 8550 5100 $Comp L Device:C C28 U 1 1 5D3F0845 P 4400 2300 F 0 "C28" V 4148 2300 50 0000 C CNN F 1 "22p" V 4239 2300 50 0000 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 4438 2150 50 0001 C CNN F 3 "~" H 4400 2300 50 0001 C CNN 1 4400 2300 0 1 1 0 $EndComp $Comp L Device:C C29 U 1 1 5D3F084B P 4400 2600 F 0 "C29" V 4148 2600 50 0000 C CNN F 1 "22p" V 4239 2600 50 0000 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 4438 2450 50 0001 C CNN F 3 "~" H 4400 2600 50 0001 C CNN 1 4400 2600 0 1 1 0 $EndComp $Comp L power:GND #PWR010 U 1 1 5D3F0860 P 4100 2950 F 0 "#PWR010" H 4100 2700 50 0001 C CNN F 1 "GND" H 4105 2777 50 0000 C CNN F 2 "" H 4100 2950 50 0001 C CNN F 3 "" H 4100 2950 50 0001 C CNN 1 4100 2950 1 0 0 -1 $EndComp Wire Wire Line 4250 2300 4100 2300 Wire Wire Line 4100 2300 4100 2600 Wire Wire Line 4250 2600 4100 2600 Connection ~ 4100 2600 Wire Wire Line 5450 2400 5350 2400 Text GLabel 7050 4300 2 50 Input ~ 0 JTMS Wire Wire Line 7050 4300 6750 4300 Text GLabel 7050 4400 2 50 Input ~ 0 JTCK Wire Wire Line 7050 4400 6750 4400 Text GLabel 5300 1900 3 50 Input ~ 0 RST Text GLabel 10550 6200 2 50 Input ~ 0 RST Wire Wire Line 10350 6200 10550 6200 Text GLabel 10550 6100 2 50 Input ~ 0 JTMS Text GLabel 10550 5900 2 50 Input ~ 0 JTCK Wire Wire Line 10550 5900 10350 5900 Wire Wire Line 10350 6100 10550 6100 $Comp L power:GND #PWR016 U 1 1 5D3F088D P 10950 6050 F 0 "#PWR016" H 10950 5800 50 0001 C CNN F 1 "GND" H 10955 5877 50 0000 C CNN F 2 "" H 10950 6050 50 0001 C CNN F 3 "" H 10950 6050 50 0001 C CNN 1 10950 6050 1 0 0 -1 $EndComp $Comp L power:+3.3V #PWR015 U 1 1 5D3F0893 P 10950 5750 F 0 "#PWR015" H 10950 5600 50 0001 C CNN F 1 "+3.3V" H 10965 5923 50 0000 C CNN F 2 "" H 10950 5750 50 0001 C CNN F 3 "" H 10950 5750 50 0001 C CNN 1 10950 5750 1 0 0 -1 $EndComp Wire Wire Line 10350 5800 10950 5800 Wire Wire Line 10950 5800 10950 5750 Wire Wire Line 10350 6000 10950 6000 Wire Wire Line 10950 6000 10950 6050 Text Notes 9950 5500 0 50 ~ 0 SWD Wire Notes Line 11150 5400 11150 6400 Wire Notes Line 9850 6400 9850 5400 Wire Notes Line 9850 5400 11150 5400 $Comp L Connector:Conn_01x05_Male J3 U 1 1 5D3F08A1 P 10150 6000 F 0 "J3" H 10258 6381 50 0000 C CNN F 1 "Conn_01x05_Male" H 10258 6290 50 0000 C CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical" H 10150 6000 50 0001 C CNN F 3 "~" H 10150 6000 50 0001 C CNN 1 10150 6000 1 0 0 -1 $EndComp Wire Notes Line 9850 6400 11150 6400 Text Notes 8550 5200 2 50 ~ 0 USERLED Wire Notes Line 8550 3850 8550 5100 Wire Notes Line 8050 3850 8050 5100 Wire Wire Line 4100 2600 4100 2800 $Comp L rohm:BD3491FS U? U 3 1 5D53D973 P 9800 3050 AR Path="/5D53D973" Ref="U?" Part="3" AR Path="/5D4FBA63/5D53D973" Ref="U1" Part="3" F 0 "U1" H 10178 3196 50 0000 L CNN F 1 "BD3491FS" H 10178 3105 50 0000 L CNN F 2 "rohm:SSOP-A32" H 9800 2950 50 0001 C CNN F 3 "http://rohmfs.rohm.com/en/products/databook/datasheet/ic/audio_video/audio_processor/bd3491fs-e.pdf" H 9800 2950 50 0001 C CNN 3 9800 3050 1 0 0 -1 $EndComp $Comp L power:VCC #PWR? U 1 1 5D53D979 P 9900 2400 AR Path="/5D53D979" Ref="#PWR?" Part="1" AR Path="/5D4FBA63/5D53D979" Ref="#PWR01" Part="1" F 0 "#PWR01" H 9900 2250 50 0001 C CNN F 1 "VCC" H 9917 2573 50 0000 C CNN F 2 "" H 9900 2400 50 0001 C CNN F 3 "" H 9900 2400 50 0001 C CNN 1 9900 2400 1 0 0 -1 $EndComp $Comp L power:GND #PWR? U 1 1 5D53D97F P 9900 3800 AR Path="/5D53D97F" Ref="#PWR?" Part="1" AR Path="/5D4FBA63/5D53D97F" Ref="#PWR02" Part="1" F 0 "#PWR02" H 9900 3550 50 0001 C CNN F 1 "GND" H 9905 3627 50 0000 C CNN F 2 "" H 9900 3800 50 0001 C CNN F 3 "" H 9900 3800 50 0001 C CNN 1 9900 3800 1 0 0 -1 $EndComp Wire Wire Line 9850 3700 9900 3700 Wire Wire Line 9900 3700 9900 3800 Wire Wire Line 9950 3650 9950 3700 Wire Wire Line 9950 3700 9900 3700 Connection ~ 9900 3700 Wire Wire Line 9850 3400 9850 3700 Wire Wire Line 9950 3400 9950 3450 Wire Wire Line 9900 2400 9900 2450 $Comp L Device:C_Small C? U 1 1 5D53D98D P 10300 2600 AR Path="/5D53D98D" Ref="C?" Part="1" AR Path="/5D4FBA63/5D53D98D" Ref="C25" Part="1" F 0 "C25" H 10208 2554 50 0000 R CNN F 1 "100n" H 10208 2645 50 0000 R CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 10300 2600 50 0001 C CNN F 3 "~" H 10300 2600 50 0001 C CNN 1 10300 2600 -1 0 0 1 $EndComp $Comp L Device:CP_Small C? U 1 1 5D53D993 P 10550 2600 AR Path="/5D53D993" Ref="C?" Part="1" AR Path="/5D4FBA63/5D53D993" Ref="C26" Part="1" F 0 "C26" H 10638 2646 50 0000 L CNN F 1 "10u" H 10638 2555 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 10550 2600 50 0001 C CNN F 3 "~" H 10550 2600 50 0001 C CNN 1 10550 2600 1 0 0 -1 $EndComp Wire Wire Line 10550 2500 10550 2450 Wire Wire Line 10550 2450 10300 2450 Connection ~ 9900 2450 Wire Wire Line 9900 2450 9900 2500 Wire Wire Line 10300 2500 10300 2450 Connection ~ 10300 2450 Wire Wire Line 10300 2450 9900 2450 $Comp L power:GND #PWR? U 1 1 5D53D9A0 P 10550 3800 AR Path="/5D53D9A0" Ref="#PWR?" Part="1" AR Path="/5D4FBA63/5D53D9A0" Ref="#PWR08" Part="1" F 0 "#PWR08" H 10550 3550 50 0001 C CNN F 1 "GND" H 10555 3627 50 0000 C CNN F 2 "" H 10550 3800 50 0001 C CNN F 3 "" H 10550 3800 50 0001 C CNN 1 10550 3800 1 0 0 -1 $EndComp Wire Wire Line 10550 2750 10550 3800 Wire Wire Line 10300 2700 10300 2750 Wire Wire Line 10300 2750 10550 2750 Wire Wire Line 10550 2700 10550 2750 Connection ~ 10550 2750 $Comp L Device:CP_Small C? U 1 1 5D53D9AB P 9950 3550 AR Path="/5D53D9AB" Ref="C?" Part="1" AR Path="/5D4FBA63/5D53D9AB" Ref="C24" Part="1" F 0 "C24" H 10038 3596 50 0000 L CNN F 1 "10u" H 10038 3505 50 0000 L CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 9950 3550 50 0001 C CNN F 3 "~" H 9950 3550 50 0001 C CNN 1 9950 3550 1 0 0 -1 $EndComp $Comp L Jumper:Jumper_2_Open JP3 U 1 1 5D55CE6B P 2500 1150 F 0 "JP3" H 2500 1385 50 0000 C CNN F 1 "Jumper_2_Open" H 2500 1294 50 0000 C CNN F 2 "Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm" H 2500 1150 50 0001 C CNN F 3 "~" H 2500 1150 50 0001 C CNN 1 2500 1150 1 0 0 -1 $EndComp $Comp L Device:Jumper JP4 U 1 1 5D55D781 P 2750 1950 F 0 "JP4" V 2704 2077 50 0000 L CNN F 1 "Jumper" V 2795 2077 50 0000 L CNN F 2 "Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm" H 2750 1950 50 0001 C CNN F 3 "~" H 2750 1950 50 0001 C CNN 1 2750 1950 0 1 1 0 $EndComp Connection ~ 2750 1150 Wire Wire Line 2750 1150 2700 1150 Wire Wire Line 2750 1150 3200 1150 Wire Wire Line 2750 1150 2750 1650 Wire Wire Line 2750 2600 2750 2250 Text Notes 2550 2050 1 50 ~ 0 switch between \npwr jack/usb power\n\n Wire Notes Line 2000 850 2000 2250 Wire Notes Line 2000 2250 3150 2250 Wire Notes Line 3150 2250 3150 850 Wire Notes Line 3150 850 2000 850 $Comp L Connector:Barrel_Jack_Switch J1 U 1 1 5D5AF27B P 1150 1250 F 0 "J1" H 1207 1567 50 0000 C CNN F 1 "Barrel_Jack_Switch" H 1207 1476 50 0000 C CNN F 2 "audioMux:BarrelJack_LCSC_C194407" H 1200 1210 50 0001 C CNN F 3 "~" H 1200 1210 50 0001 C CNN 1 1150 1250 1 0 0 -1 $EndComp Wire Wire Line 1450 1250 1550 1250 Wire Wire Line 1550 1250 1550 1350 Wire Wire Line 1550 1350 1450 1350 Wire Wire Line 1450 1150 2300 1150 $Comp L power:GND #PWR06 U 1 1 5D5B65C0 P 1550 1650 F 0 "#PWR06" H 1550 1400 50 0001 C CNN F 1 "GND" H 1555 1477 50 0000 C CNN F 2 "" H 1550 1650 50 0001 C CNN F 3 "" H 1550 1650 50 0001 C CNN 1 1550 1650 1 0 0 -1 $EndComp Wire Wire Line 1550 1350 1550 1650 Connection ~ 1550 1350 $Comp L power:+3V3 #PWR07 U 1 1 5D5BF43A P 9050 2300 F 0 "#PWR07" H 9050 2150 50 0001 C CNN F 1 "+3V3" H 9065 2473 50 0000 C CNN F 2 "" H 9050 2300 50 0001 C CNN F 3 "" H 9050 2300 50 0001 C CNN 1 9050 2300 1 0 0 -1 $EndComp $Comp L Device:R R6 U 1 1 5D5BF974 P 9050 2600 F 0 "R6" H 9120 2646 50 0000 L CNN F 1 "10k" H 9120 2555 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 8980 2600 50 0001 C CNN F 3 "~" H 9050 2600 50 0001 C CNN 1 9050 2600 1 0 0 -1 $EndComp $Comp L Device:R R7 U 1 1 5D5BFEC0 P 9200 2600 F 0 "R7" H 9270 2646 50 0000 L CNN F 1 "10k" H 9270 2555 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 9130 2600 50 0001 C CNN F 3 "~" H 9200 2600 50 0001 C CNN 1 9200 2600 1 0 0 -1 $EndComp Wire Wire Line 9050 2300 9050 2350 Wire Wire Line 9050 2350 9200 2350 Wire Wire Line 9200 2350 9200 2450 Connection ~ 9050 2350 Wire Wire Line 9050 2350 9050 2450 Wire Wire Line 9050 2750 9050 2950 Wire Wire Line 8950 2950 9050 2950 Connection ~ 9050 2950 Wire Wire Line 9050 2950 9400 2950 Wire Wire Line 9200 3050 9200 2750 Wire Wire Line 9200 3050 9400 3050 Wire Wire Line 9200 3050 8950 3050 Connection ~ 9200 3050 Text GLabel 8950 2950 0 50 BiDi ~ 0 SDA Text GLabel 8950 3050 0 50 Input ~ 0 SCL $Comp L MCU_ST_STM32F1:STM32F103C8Tx U4 U 1 1 5D3F075C P 6150 3200 F 0 "U4" H 6100 1611 50 0000 C CNN F 1 "STM32F103C8Tx" H 6100 1520 50 0000 C CNN F 2 "Package_QFP:LQFP-48_7x7mm_P0.5mm" H 5550 1800 50 0001 R CNN F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf" H 6150 3200 50 0001 C CNN 1 6150 3200 1 0 0 -1 $EndComp Text GLabel 5250 3600 0 50 Output ~ 0 SCL Text GLabel 5250 3700 0 50 BiDi ~ 0 SDA Wire Wire Line 5250 3700 5450 3700 Wire Wire Line 5450 3600 5250 3600 Connection ~ 3400 2800 Wire Wire Line 1450 2600 2750 2600 Wire Wire Line 1450 2800 3400 2800 Wire Wire Line 1450 2900 3600 2900 $Comp L Connector:USB_B_Micro J2 U 1 1 5D3F0768 P 1150 2800 F 0 "J2" H 1207 3267 50 0000 C CNN F 1 "USB_B_Micro" H 1207 3176 50 0000 C CNN F 2 "audioMux:usb" H 1300 2750 50 0001 C CNN F 3 "~" H 1300 2750 50 0001 C CNN 1 1150 2800 1 0 0 -1 $EndComp Wire Wire Line 5350 2600 5350 2400 Wire Wire Line 3200 950 3200 1150 Connection ~ 3200 1150 Wire Wire Line 3200 1150 3350 1150 $Comp L power:VCC #PWR0101 U 1 1 5DA247C4 P 3200 950 F 0 "#PWR0101" H 3200 800 50 0001 C CNN F 1 "VCC" H 3217 1123 50 0000 C CNN F 2 "" H 3200 950 50 0001 C CNN F 3 "" H 3200 950 50 0001 C CNN 1 3200 950 1 0 0 -1 $EndComp $Comp L Device:Crystal_GND24 Y1 U 1 1 5DAD6FE0 P 4750 2450 F 0 "Y1" V 4704 2694 50 0000 L CNN F 1 "8Mhz" V 4795 2694 50 0000 L CNN F 2 "Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm" H 4750 2450 50 0001 C CNN F 3 "https://datasheet.lcsc.com/szlcsc/Zhejiang-Abel-Elec-SMD-5032-4P8M20pf20ppm_C133333.pdf" H 4750 2450 50 0001 C CNN 1 4750 2450 0 1 1 0 $EndComp Wire Wire Line 4550 2300 4750 2300 Wire Wire Line 4550 2600 4750 2600 Connection ~ 4750 2300 Wire Wire Line 4750 2300 5450 2300 Connection ~ 4750 2600 Wire Wire Line 4750 2600 5350 2600 Wire Wire Line 4550 2450 4500 2450 Wire Wire Line 4500 2450 4500 2800 Wire Wire Line 4500 2800 4100 2800 Connection ~ 4100 2800 Wire Wire Line 4100 2800 4100 2950 Wire Wire Line 4950 2450 4950 2800 Wire Wire Line 4950 2800 4500 2800 Connection ~ 4500 2800 $Comp L Switch:SW_Push_Dual SW2 U 1 1 5DAFB3C5 P 2650 3400 F 0 "SW2" H 2650 3685 50 0000 C CNN F 1 "SW_Push_Dual" H 2650 3594 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 2650 3600 50 0001 C CNN F 3 "~" H 2650 3600 50 0001 C CNN 1 2650 3400 1 0 0 -1 $EndComp Wire Wire Line 2450 3400 2250 3400 Wire Wire Line 2250 3400 2250 3600 Wire Wire Line 2450 3600 2250 3600 Connection ~ 2250 3600 Wire Wire Line 2250 3600 2250 3700 Wire Wire Line 2850 3400 3100 3400 Wire Wire Line 3100 3400 3100 3600 Wire Wire Line 3100 3600 2850 3600 Text Notes 3850 7350 2 50 ~ 0 selector switches\nwill use internal pullup of stm32 Wire Notes Line 2150 3050 3900 3050 Wire Notes Line 3900 3050 3900 7500 Wire Notes Line 3900 7500 2150 7500 Wire Notes Line 2150 7500 2150 3050 $Comp L Device:R_Small R8 U 1 1 5DC04939 P 2500 3700 F 0 "R8" V 2304 3700 50 0000 C CNN F 1 "270" V 2395 3700 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 3700 50 0001 C CNN F 3 "~" H 2500 3700 50 0001 C CNN 1 2500 3700 0 1 1 0 $EndComp $Comp L Device:LED D2 U 1 1 5DC03674 P 2800 3700 F 0 "D2" V 2839 3583 50 0000 R CNN F 1 "LED" V 2748 3583 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 2800 3700 50 0001 C CNN F 3 "~" H 2800 3700 50 0001 C CNN 1 2800 3700 1 0 0 -1 $EndComp $Comp L power:GND #PWR030 U 1 1 5DB0AABB P 2250 3800 F 0 "#PWR030" H 2250 3550 50 0001 C CNN F 1 "GND" H 2255 3627 50 0000 C CNN F 2 "" H 2250 3800 50 0001 C CNN F 3 "" H 2250 3800 50 0001 C CNN 1 2250 3800 1 0 0 -1 $EndComp Wire Wire Line 2400 3700 2250 3700 Connection ~ 2250 3700 Wire Wire Line 2250 3700 2250 3800 Wire Wire Line 2650 3700 2600 3700 Wire Wire Line 4750 3700 4750 3200 Wire Wire Line 4750 3200 5450 3200 Wire Wire Line 5450 3100 4700 3100 Wire Wire Line 4700 3100 4700 3400 Connection ~ 3100 3400 $Comp L Switch:SW_Push_Dual SW5 U 1 1 5DCAC21D P 3300 3900 F 0 "SW5" H 3300 4185 50 0000 C CNN F 1 "SW_Push_Dual" H 3300 4094 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 3300 4100 50 0001 C CNN F 3 "~" H 3300 4100 50 0001 C CNN 1 3300 3900 1 0 0 -1 $EndComp Wire Wire Line 3100 3900 2900 3900 Wire Wire Line 2900 3900 2900 4100 Wire Wire Line 3100 4100 2900 4100 Connection ~ 2900 4100 Wire Wire Line 2900 4100 2900 4200 Wire Wire Line 3500 3900 3750 3900 Wire Wire Line 3750 3900 3750 4100 Wire Wire Line 3750 4100 3500 4100 $Comp L Device:R_Small R11 U 1 1 5DCAC22B P 3150 4200 F 0 "R11" V 2954 4200 50 0000 C CNN F 1 "270" V 3045 4200 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 4200 50 0001 C CNN F 3 "~" H 3150 4200 50 0001 C CNN 1 3150 4200 0 1 1 0 $EndComp $Comp L Device:LED D5 U 1 1 5DCAC231 P 3450 4200 F 0 "D5" V 3489 4083 50 0000 R CNN F 1 "LED" V 3398 4083 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 3450 4200 50 0001 C CNN F 3 "~" H 3450 4200 50 0001 C CNN 1 3450 4200 1 0 0 -1 $EndComp $Comp L power:GND #PWR033 U 1 1 5DCAC237 P 2900 4300 F 0 "#PWR033" H 2900 4050 50 0001 C CNN F 1 "GND" H 2905 4127 50 0000 C CNN F 2 "" H 2900 4300 50 0001 C CNN F 3 "" H 2900 4300 50 0001 C CNN 1 2900 4300 1 0 0 -1 $EndComp Wire Wire Line 3050 4200 2900 4200 Connection ~ 2900 4200 Wire Wire Line 2900 4200 2900 4300 Wire Wire Line 3300 4200 3250 4200 Connection ~ 3750 3900 Wire Wire Line 4800 3000 5450 3000 Wire Wire Line 3750 3900 4800 3900 Wire Wire Line 5300 5300 7350 5300 Wire Wire Line 7350 5300 7350 3900 Wire Wire Line 3600 4200 5300 4200 $Comp L Switch:SW_Push_Dual SW3 U 1 1 5DCCEEEE P 2650 4650 F 0 "SW3" H 2650 4935 50 0000 C CNN F 1 "SW_Push_Dual" H 2650 4844 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 2650 4850 50 0001 C CNN F 3 "~" H 2650 4850 50 0001 C CNN 1 2650 4650 1 0 0 -1 $EndComp Wire Wire Line 2450 4650 2250 4650 Wire Wire Line 2250 4650 2250 4850 Wire Wire Line 2450 4850 2250 4850 Connection ~ 2250 4850 Wire Wire Line 2250 4850 2250 4950 Wire Wire Line 2850 4650 3100 4650 Wire Wire Line 3100 4650 3100 4850 Wire Wire Line 3100 4850 2850 4850 $Comp L Device:R_Small R9 U 1 1 5DCCEEFC P 2500 4950 F 0 "R9" V 2304 4950 50 0000 C CNN F 1 "270" V 2395 4950 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 4950 50 0001 C CNN F 3 "~" H 2500 4950 50 0001 C CNN 1 2500 4950 0 1 1 0 $EndComp $Comp L Device:LED D3 U 1 1 5DCCEF02 P 2800 4950 F 0 "D3" V 2839 4833 50 0000 R CNN F 1 "LED" V 2748 4833 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 2800 4950 50 0001 C CNN F 3 "~" H 2800 4950 50 0001 C CNN 1 2800 4950 1 0 0 -1 $EndComp $Comp L power:GND #PWR031 U 1 1 5DCCEF08 P 2250 5050 F 0 "#PWR031" H 2250 4800 50 0001 C CNN F 1 "GND" H 2255 4877 50 0000 C CNN F 2 "" H 2250 5050 50 0001 C CNN F 3 "" H 2250 5050 50 0001 C CNN 1 2250 5050 1 0 0 -1 $EndComp Wire Wire Line 2400 4950 2250 4950 Connection ~ 2250 4950 Wire Wire Line 2250 4950 2250 5050 Wire Wire Line 2650 4950 2600 4950 Connection ~ 3100 4650 Wire Wire Line 7400 5350 7400 3800 Wire Wire Line 5200 5400 7450 5400 $Comp L Switch:SW_Push_Dual SW6 U 1 1 5DCF1EFE P 3300 5150 F 0 "SW6" H 3300 5435 50 0000 C CNN F 1 "SW_Push_Dual" H 3300 5344 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 3300 5350 50 0001 C CNN F 3 "~" H 3300 5350 50 0001 C CNN 1 3300 5150 1 0 0 -1 $EndComp Wire Wire Line 3100 5150 2900 5150 Wire Wire Line 2900 5150 2900 5350 Wire Wire Line 3100 5350 2900 5350 Connection ~ 2900 5350 Wire Wire Line 2900 5350 2900 5450 Wire Wire Line 3500 5150 3750 5150 Wire Wire Line 3750 5150 3750 5350 Wire Wire Line 3750 5350 3500 5350 $Comp L Device:R_Small R12 U 1 1 5DCF1F0C P 3150 5450 F 0 "R12" V 2954 5450 50 0000 C CNN F 1 "270" V 3045 5450 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 5450 50 0001 C CNN F 3 "~" H 3150 5450 50 0001 C CNN 1 3150 5450 0 1 1 0 $EndComp $Comp L Device:LED D6 U 1 1 5DCF1F12 P 3450 5450 F 0 "D6" V 3489 5333 50 0000 R CNN F 1 "LED" V 3398 5333 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 3450 5450 50 0001 C CNN F 3 "~" H 3450 5450 50 0001 C CNN 1 3450 5450 1 0 0 -1 $EndComp $Comp L power:GND #PWR034 U 1 1 5DCF1F18 P 2900 5550 F 0 "#PWR034" H 2900 5300 50 0001 C CNN F 1 "GND" H 2905 5377 50 0000 C CNN F 2 "" H 2900 5550 50 0001 C CNN F 3 "" H 2900 5550 50 0001 C CNN 1 2900 5550 1 0 0 -1 $EndComp Wire Wire Line 3050 5450 2900 5450 Connection ~ 2900 5450 Wire Wire Line 2900 5450 2900 5550 Wire Wire Line 3300 5450 3250 5450 Wire Wire Line 7500 5450 7500 3600 Wire Wire Line 7550 5500 7550 3500 Wire Wire Line 6750 4000 8200 4000 Wire Notes Line 8550 3850 8050 3850 $Comp L Switch:SW_Push_Dual SW4 U 1 1 5DD6E675 P 2650 5900 F 0 "SW4" H 2650 6185 50 0000 C CNN F 1 "SW_Push_Dual" H 2650 6094 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 2650 6100 50 0001 C CNN F 3 "~" H 2650 6100 50 0001 C CNN 1 2650 5900 1 0 0 -1 $EndComp Wire Wire Line 2450 5900 2250 5900 Wire Wire Line 2250 5900 2250 6100 Wire Wire Line 2450 6100 2250 6100 Connection ~ 2250 6100 Wire Wire Line 2250 6100 2250 6200 Wire Wire Line 2850 5900 3100 5900 Wire Wire Line 3100 5900 3100 6100 Wire Wire Line 3100 6100 2850 6100 $Comp L Device:R_Small R10 U 1 1 5DD6E683 P 2500 6200 F 0 "R10" V 2304 6200 50 0000 C CNN F 1 "270" V 2395 6200 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 6200 50 0001 C CNN F 3 "~" H 2500 6200 50 0001 C CNN 1 2500 6200 0 1 1 0 $EndComp $Comp L Device:LED D4 U 1 1 5DD6E689 P 2800 6200 F 0 "D4" V 2839 6083 50 0000 R CNN F 1 "LED" V 2748 6083 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 2800 6200 50 0001 C CNN F 3 "~" H 2800 6200 50 0001 C CNN 1 2800 6200 1 0 0 -1 $EndComp $Comp L power:GND #PWR032 U 1 1 5DD6E68F P 2250 6300 F 0 "#PWR032" H 2250 6050 50 0001 C CNN F 1 "GND" H 2255 6127 50 0000 C CNN F 2 "" H 2250 6300 50 0001 C CNN F 3 "" H 2250 6300 50 0001 C CNN 1 2250 6300 1 0 0 -1 $EndComp Wire Wire Line 2400 6200 2250 6200 Connection ~ 2250 6200 Wire Wire Line 2250 6200 2250 6300 Wire Wire Line 2650 6200 2600 6200 Wire Wire Line 5300 5550 7600 5550 Wire Wire Line 7600 5550 7600 3400 Wire Wire Line 5350 5600 7650 5600 Wire Wire Line 7650 5600 7650 3300 Wire Wire Line 6750 3900 7350 3900 Wire Wire Line 6750 3800 7400 3800 Wire Wire Line 5250 5350 7400 5350 Wire Wire Line 7450 5400 7450 3700 Wire Wire Line 6750 3700 7450 3700 Wire Wire Line 6750 3600 7500 3600 Wire Wire Line 6750 3500 7550 3500 Wire Wire Line 6750 3400 7600 3400 Wire Wire Line 6750 3300 7650 3300 $Comp L Switch:SW_Push_Dual SW7 U 1 1 5DEAAA27 P 3300 6400 F 0 "SW7" H 3300 6685 50 0000 C CNN F 1 "SW_Push_Dual" H 3300 6594 50 0000 C CNN F 2 "audioMux:XKB5858-Z-TP" H 3300 6600 50 0001 C CNN F 3 "~" H 3300 6600 50 0001 C CNN 1 3300 6400 1 0 0 -1 $EndComp Wire Wire Line 3100 6400 2900 6400 Wire Wire Line 2900 6400 2900 6600 Wire Wire Line 3100 6600 2900 6600 Connection ~ 2900 6600 Wire Wire Line 2900 6600 2900 6700 Wire Wire Line 3500 6400 3750 6400 Wire Wire Line 3750 6400 3750 6600 Wire Wire Line 3750 6600 3500 6600 $Comp L Device:R_Small R13 U 1 1 5DEAAA35 P 3150 6700 F 0 "R13" V 2954 6700 50 0000 C CNN F 1 "270" V 3045 6700 50 0000 C CNN F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 6700 50 0001 C CNN F 3 "~" H 3150 6700 50 0001 C CNN 1 3150 6700 0 1 1 0 $EndComp $Comp L Device:LED D7 U 1 1 5DEAAA3B P 3450 6700 F 0 "D7" V 3489 6583 50 0000 R CNN F 1 "LED" V 3398 6583 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric" H 3450 6700 50 0001 C CNN F 3 "~" H 3450 6700 50 0001 C CNN 1 3450 6700 1 0 0 -1 $EndComp $Comp L power:GND #PWR035 U 1 1 5DEAAA41 P 2900 6800 F 0 "#PWR035" H 2900 6550 50 0001 C CNN F 1 "GND" H 2905 6627 50 0000 C CNN F 2 "" H 2900 6800 50 0001 C CNN F 3 "" H 2900 6800 50 0001 C CNN 1 2900 6800 1 0 0 -1 $EndComp Wire Wire Line 3050 6700 2900 6700 Connection ~ 2900 6700 Wire Wire Line 2900 6700 2900 6800 Wire Wire Line 3300 6700 3250 6700 Wire Wire Line 4800 3900 4800 3000 Wire Wire Line 3100 3400 4700 3400 Wire Wire Line 2950 3700 4750 3700 Wire Wire Line 5300 4200 5300 5300 Wire Wire Line 5250 4650 5250 5350 Wire Wire Line 3100 4650 5250 4650 Wire Wire Line 5200 4950 5200 5400 Wire Wire Line 2950 4950 5200 4950 Wire Wire Line 5400 5650 7700 5650 Wire Wire Line 7700 5650 7700 3200 Wire Wire Line 7700 3200 6750 3200 NoConn ~ 6750 4500 NoConn ~ 6750 3000 NoConn ~ 5450 3300 NoConn ~ 5450 3400 NoConn ~ 5450 3500 NoConn ~ 5450 3800 NoConn ~ 5450 3900 NoConn ~ 5450 4000 NoConn ~ 5450 4100 NoConn ~ 5450 4200 NoConn ~ 5450 4300 NoConn ~ 5450 4400 NoConn ~ 5450 4500 NoConn ~ 5450 2800 NoConn ~ 5450 2700 NoConn ~ 5450 2600 NoConn ~ 1450 3000 Wire Wire Line 3750 5150 5100 5150 Wire Wire Line 5100 5150 5100 5450 Wire Wire Line 5100 5450 7500 5450 Connection ~ 3750 5150 Wire Wire Line 3600 5450 5050 5450 Wire Wire Line 5050 5450 5050 5500 Wire Wire Line 5050 5500 7550 5500 Wire Wire Line 3100 5900 5300 5900 Wire Wire Line 5300 5900 5300 5550 Connection ~ 3100 5900 Wire Wire Line 2950 6200 5350 6200 Wire Wire Line 5350 6200 5350 5600 Wire Wire Line 3750 6400 5400 6400 Wire Wire Line 5400 6400 5400 5650 Connection ~ 3750 6400 Wire Wire Line 3600 6700 5450 6700 Wire Wire Line 5450 6700 5450 5700 Wire Wire Line 5450 5700 7750 5700 Wire Wire Line 7750 5700 7750 3100 Wire Wire Line 6750 3100 7750 3100 $Comp L Device:R R14 U 1 1 5E3B11D0 P 5050 2100 F 0 "R14" H 5120 2146 50 0000 L CNN F 1 "10k" H 5120 2055 50 0000 L CNN F 2 "Resistor_SMD:R_0603_1608Metric" V 4980 2100 50 0001 C CNN F 3 "~" H 5050 2100 50 0001 C CNN 1 5050 2100 0 1 1 0 $EndComp Wire Wire Line 5200 2100 5450 2100 Wire Wire Line 4550 1900 4700 1900 Wire Wire Line 4900 2100 4700 2100 Wire Wire Line 4700 2100 4700 1900 Connection ~ 4700 1900 Wire Wire Line 4700 1900 4800 1900 $EndSCHEMATC