diff --git a/firmware/audioMux.ioc b/firmware/audioMux.ioc
new file mode 100644
index 0000000..4705d79
--- /dev/null
+++ b/firmware/audioMux.ioc
@@ -0,0 +1,100 @@
+#MicroXplorer Configuration settings - do not modify
+File.Version=6
+KeepUserPlacement=false
+Mcu.Family=STM32F1
+Mcu.IP0=I2C1
+Mcu.IP1=NVIC
+Mcu.IP2=RCC
+Mcu.IP3=SYS
+Mcu.IP4=USB
+Mcu.IPNb=5
+Mcu.Name=STM32F103C(8-B)Tx
+Mcu.Package=LQFP48
+Mcu.Pin0=PD0-OSC_IN
+Mcu.Pin1=PD1-OSC_OUT
+Mcu.Pin2=PA11
+Mcu.Pin3=PA12
+Mcu.Pin4=PA13
+Mcu.Pin5=PA14
+Mcu.Pin6=PB6
+Mcu.Pin7=PB7
+Mcu.Pin8=VP_SYS_VS_Systick
+Mcu.PinsNb=9
+Mcu.ThirdPartyNb=0
+Mcu.UserConstants=
+Mcu.UserName=STM32F103C8Tx
+MxCube.Version=5.0.1
+MxDb.Version=DB.5.0.1
+NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
+NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.SysTick_IRQn=true\:0\:0\:false\:false\:true\:false
+NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false
+PA11.Mode=Device
+PA11.Signal=USB_DM
+PA12.Mode=Device
+PA12.Signal=USB_DP
+PA13.Mode=Serial_Wire
+PA13.Signal=SYS_JTMS-SWDIO
+PA14.Mode=Serial_Wire
+PA14.Signal=SYS_JTCK-SWCLK
+PB6.Mode=I2C
+PB6.Signal=I2C1_SCL
+PB7.Mode=I2C
+PB7.Signal=I2C1_SDA
+PCC.Checker=false
+PCC.Line=STM32F103
+PCC.MCU=STM32F103C(8-B)Tx
+PCC.PartNumber=STM32F103C8Tx
+PCC.Seq0=0
+PCC.Series=STM32F1
+PCC.Temperature=25
+PCC.Vdd=3.3
+PD0-OSC_IN.Mode=HSE-External-Oscillator
+PD0-OSC_IN.Signal=RCC_OSC_IN
+PD1-OSC_OUT.Mode=HSE-External-Oscillator
+PD1-OSC_OUT.Signal=RCC_OSC_OUT
+PinOutPanel.RotationAngle=0
+ProjectManager.AskForMigrate=true
+ProjectManager.BackupPrevious=false
+ProjectManager.CompilerOptimize=6
+ProjectManager.ComputerToolchain=false
+ProjectManager.CoupleFile=false
+ProjectManager.CustomerFirmwarePackage=
+ProjectManager.DefaultFWLocation=true
+ProjectManager.DeletePrevious=true
+ProjectManager.DeviceId=STM32F103C8Tx
+ProjectManager.FirmwarePackage=STM32Cube FW_F1 V1.7.0
+ProjectManager.FreePins=false
+ProjectManager.HalAssertFull=false
+ProjectManager.HeapSize=0x200
+ProjectManager.KeepUserCode=true
+ProjectManager.LastFirmware=true
+ProjectManager.LibraryCopy=0
+ProjectManager.MainLocation=Src
+ProjectManager.NoMain=false
+ProjectManager.PreviousToolchain=
+ProjectManager.ProjectBuild=false
+ProjectManager.ProjectFileName=audioMux.ioc
+ProjectManager.ProjectName=audioMux
+ProjectManager.StackSize=0x400
+ProjectManager.TargetToolchain=EWARM V8
+ProjectManager.ToolChainLocation=
+ProjectManager.UnderRoot=false
+ProjectManager.functionlistsort=1-MX_GPIO_Init-GPIO-false-HAL-true,2-SystemClock_Config-RCC-false-HAL-false,3-MX_I2C1_Init-I2C1-false-HAL-true,4-MX_USB_PCD_Init-USB-false-HAL-true
+RCC.APB1Freq_Value=8000000
+RCC.APB2Freq_Value=8000000
+RCC.FamilyName=M
+RCC.IPParameters=APB1Freq_Value,APB2Freq_Value,FamilyName,PLLCLKFreq_Value,PLLMCOFreq_Value,PLLSourceVirtualString,TimSysFreq_Value
+RCC.PLLCLKFreq_Value=8000000
+RCC.PLLMCOFreq_Value=4000000
+RCC.PLLSourceVirtualString=RCC_PLLSOURCE_HSI_DIV2
+RCC.TimSysFreq_Value=8000000
+VP_SYS_VS_Systick.Mode=SysTick
+VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+board=custom