backplane.net

(export (version D)
  (design
    (source /Users/adam/Documents/kicad/ic880a-backplane/backplane.sch)
    (date "štvrtok, 10. máj 2018, 20:26:10")
    (tool "Eeschema (5.0.0-rc2-dev-691-g31b026c)")
    (sheet (number 1) (name /) (tstamps /)
      (title_block
        (title "iC880A RPi Backplane")
        (company "Danilo Bargen / Coredump Rapperswil")
        (rev v1.6)
        (date 2018-03-26)
        (source backplane.sch)
        (comment (number 1) (value "Buy from https://shop.coredump.ch/"))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value "")))))
  (components
    (comp (ref U2)
      (value IC880A-SPI)
      (footprint ic880a:IC880A-SPI)
      (libsource (lib ic880a-spi) (part IC880A-SPI))
      (sheetpath (names /) (tstamps /))
      (tstamp 5895DD0B))
    (comp (ref U1)
      (value Raspberry_Pi_2_3)
      (footprint headers:Pin_Header_Straight_2x20_Pitch2.54mm)
      (libsource (lib raspi) (part Raspi_2_3))
      (sheetpath (names /) (tstamps /))
      (tstamp 5895DDA9))
    (comp (ref J1)
      (value I2C)
      (footprint Socket_Strips:Socket_Strip_Straight_1x05_Pitch2.54mm)
      (libsource (lib headers) (part I2C_HEADER))
      (sheetpath (names /) (tstamps /))
      (tstamp 5895E94C))
    (comp (ref D2)
      (value LED_Yellow)
      (footprint LEDs:LED_0805_HandSoldering)
      (libsource (lib device) (part LED_Small))
      (sheetpath (names /) (tstamps /))
      (tstamp 5895F75F))
    (comp (ref D1)
      (value LED_Blue)
      (footprint LEDs:LED_0805_HandSoldering)
      (libsource (lib device) (part LED_Small))
      (sheetpath (names /) (tstamps /))
      (tstamp 5895F789))
    (comp (ref R2)
      (value "330Ω 1/8W")
      (footprint Resistors_SMD:R_1206)
      (libsource (lib backplane-rescue) (part R-RESCUE-backplane))
      (sheetpath (names /) (tstamps /))
      (tstamp 58965066))
    (comp (ref R1)
      (value "82Ω 1/8W")
      (footprint Resistors_SMD:R_1206)
      (libsource (lib backplane-rescue) (part R-RESCUE-backplane))
      (sheetpath (names /) (tstamps /))
      (tstamp 589650B2))
    (comp (ref U3)
      (value SHT21)
      (footprint sensirion:SHT21)
      (datasheet https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Sensirion_Humidity_Sensors_SHT21_Datasheet_V4.pdf)
      (libsource (lib sensirion) (part SHT21))
      (sheetpath (names /) (tstamps /))
      (tstamp 5898B996))
    (comp (ref C1)
      (value C)
      (footprint Capacitors_SMD:C_1206)
      (fields
        (field (name C) 100nF))
      (libsource (lib device) (part C))
      (sheetpath (names /) (tstamps /))
      (tstamp 5898C4BA))
    (comp (ref R5)
      (value R)
      (footprint Resistors_SMD:R_1206)
      (fields
        (field (name R) 10kΩ))
      (libsource (lib device) (part R))
      (sheetpath (names /) (tstamps /))
      (tstamp 589B82C4))
    (comp (ref R4)
      (value R)
      (footprint Resistors_SMD:R_1206)
      (fields
        (field (name R) 10kΩ))
      (libsource (lib device) (part R))
      (sheetpath (names /) (tstamps /))
      (tstamp 589B831C))
    (comp (ref C2)
      (value C)
      (footprint Capacitors_SMD:CP_Elec_8x10)
      (libsource (lib device) (part C))
      (sheetpath (names /) (tstamps /))
      (tstamp 58A06EA9))
    (comp (ref J2)
      (value PWR)
      (footprint TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-3.5mm_2pol)
      (libsource (lib headers) (part PWR_HEADER))
      (sheetpath (names /) (tstamps /))
      (tstamp 589627A5))
    (comp (ref D5)
      (value D_TVS)
      (footprint DO214:DO-214AA)
      (datasheet http://www.vishay.com/docs/88392/smbj50a.pdf)
      (fields
        (field (name Digikey) SMBJ5.0A-E3/5BGICT-ND))
      (libsource (lib device) (part D_Zener_Small))
      (sheetpath (names /) (tstamps /))
      (tstamp 58F8FE37))
    (comp (ref J3)
      (value Barrel_Jack)
      (footprint Connectors:BARREL_JACK)
      (libsource (lib Connector) (part Barrel_Jack))
      (sheetpath (names /) (tstamps /))
      (tstamp 5AED4446))
    (comp (ref J5)
      (value REG_Conn)
      (footprint Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm)
      (libsource (lib Connector) (part Conn_01x03))
      (sheetpath (names /) (tstamps /))
      (tstamp 5AEF5A5C))
    (comp (ref C3)
      (value C)
      (footprint Capacitors_SMD:CP_Elec_8x10)
      (libsource (lib device) (part C))
      (sheetpath (names /) (tstamps /))
      (tstamp 5B18E1E2))
    (comp (ref D4)
      (value D_Schottky)
      (footprint Diodes_SMD:D_SMC)
      (libsource (lib device) (part D_Schottky))
      (sheetpath (names /) (tstamps /))
      (tstamp 5B1FF0CB))
    (comp (ref J4)
      (value GPS_Conn)
      (footprint Socket_Strips:Socket_Strip_Straight_1x05_Pitch2.54mm)
      (libsource (lib Connector) (part Conn_01x05))
      (sheetpath (names /) (tstamps /))
      (tstamp 5AFE6C47))
    (comp (ref D6)
      (value D_TVS)
      (footprint Diodes_SMD:D_SMC)
      (datasheet https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode)
      (libsource (lib device) (part D_TVS))
      (sheetpath (names /) (tstamps /))
      (tstamp 5AF3C4F2)))
  (libparts
    (libpart (lib Connector) (part Barrel_Jack)
      (aliases
        (alias Jack-DC))
      (description "DC Barrel Jack")
      (docs ~)
      (footprints
        (fp Barrel*Jack*)
        (fp BARREL*JACK*))
      (fields
        (field (name Reference) J)
        (field (name Value) Barrel_Jack))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))
        (pin (num 3) (name ~) (type passive))))
    (libpart (lib Connector) (part Conn_01x03)
      (description "Generic connector, single row, 01x03")
      (docs ~)
      (footprints
        (fp Connector*:*_??x*mm*)
        (fp Connector*:*1x??x*mm*)
        (fp Pin?Header?Straight?1X*)
        (fp Pin?Header?Angled?1X*)
        (fp Socket?Strip?Straight?1X*)
        (fp Socket?Strip?Angled?1X*))
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_01x03))
      (pins
        (pin (num 1) (name Pin_1) (type passive))
        (pin (num 2) (name Pin_2) (type passive))
        (pin (num 3) (name Pin_3) (type passive))))
    (libpart (lib Connector) (part Conn_01x05)
      (description "Generic connector, single row, 01x05")
      (docs ~)
      (footprints
        (fp Connector*:*_??x*mm*)
        (fp Connector*:*1x??x*mm*)
        (fp Pin?Header?Straight?1X*)
        (fp Pin?Header?Angled?1X*)
        (fp Socket?Strip?Straight?1X*)
        (fp Socket?Strip?Angled?1X*))
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_01x05))
      (pins
        (pin (num 1) (name Pin_1) (type passive))
        (pin (num 2) (name Pin_2) (type passive))
        (pin (num 3) (name Pin_3) (type passive))
        (pin (num 4) (name Pin_4) (type passive))
        (pin (num 5) (name Pin_5) (type passive))))
    (libpart (lib backplane-rescue) (part R-RESCUE-backplane)
      (footprints
        (fp R_*)
        (fp Resistor_*))
      (fields
        (field (name Reference) R)
        (field (name Value) R-RESCUE-backplane))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib device) (part C)
      (description "Unpolarized capacitor")
      (footprints
        (fp C_*))
      (fields
        (field (name Reference) C)
        (field (name Value) C))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib device) (part D_Schottky)
      (description "Schottky diode")
      (footprints
        (fp TO-???*)
        (fp *SingleDiode)
        (fp *_Diode_*)
        (fp *SingleDiode*)
        (fp D_*))
      (fields
        (field (name Reference) D)
        (field (name Value) D_Schottky))
      (pins
        (pin (num 1) (name K) (type passive))
        (pin (num 2) (name A) (type passive))))
    (libpart (lib device) (part D_TVS)
      (description "Bidirectional transient-voltage-suppression (TVS) diode")
      (docs https://en.wikipedia.org/wiki/Transient-voltage-suppression_diode)
      (footprints
        (fp TO-???*)
        (fp *SingleDiode)
        (fp *_Diode_*)
        (fp *SingleDiode*)
        (fp D_*))
      (fields
        (field (name Reference) D)
        (field (name Value) D_TVS))
      (pins
        (pin (num 1) (name A1) (type passive))
        (pin (num 2) (name A2) (type passive))))
    (libpart (lib device) (part D_Zener_Small)
      (description "Zener Diode, small symbol")
      (docs https://en.wikipedia.org/wiki/Zener_diode)
      (footprints
        (fp TO-???*)
        (fp *SingleDiode)
        (fp *_Diode_*)
        (fp *SingleDiode*)
        (fp D_*))
      (fields
        (field (name Reference) D)
        (field (name Value) D_Zener_Small))
      (pins
        (pin (num 1) (name K) (type passive))
        (pin (num 2) (name A) (type passive))))
    (libpart (lib device) (part LED_Small)
      (description "LED, small symbol")
      (docs ~)
      (footprints
        (fp LED*))
      (fields
        (field (name Reference) D)
        (field (name Value) LED_Small))
      (pins
        (pin (num 1) (name K) (type passive))
        (pin (num 2) (name A) (type passive))))
    (libpart (lib device) (part R)
      (description Resistor)
      (footprints
        (fp R_*)
        (fp R_*))
      (fields
        (field (name Reference) R)
        (field (name Value) R))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib headers) (part I2C_HEADER)
      (description "I2C Header")
      (fields
        (field (name Reference) J)
        (field (name Value) I2C_HEADER))
      (pins
        (pin (num 1) (name SDA) (type BiDi))
        (pin (num 2) (name SCL) (type BiDi))
        (pin (num 3) (name GND) (type passive))
        (pin (num 4) (name 3.3V) (type passive))
        (pin (num 5) (name 5V) (type passive))))
    (libpart (lib headers) (part PWR_HEADER)
      (description "Power Header")
      (fields
        (field (name Reference) J)
        (field (name Value) PWR_HEADER))
      (pins
        (pin (num 1) (name GND) (type passive))
        (pin (num 2) (name VCC) (type passive))))
    (libpart (lib ic880a-spi) (part IC880A-SPI)
      (aliases
        (alias IC880A))
      (description "WiMOD iC880A SPI LoRaWAN concentrator board")
      (fields
        (field (name Reference) U)
        (field (name Value) IC880A-SPI))
      (pins
        (pin (num 1) (name GND) (type power_in))
        (pin (num 2) (name NC) (type NotConnected))
        (pin (num 3) (name nGPS_Reset) (type input))
        (pin (num 4) (name SPValid) (type input))
        (pin (num 5) (name EN_GPS_Supply) (type input))
        (pin (num 6) (name NC) (type NotConnected))
        (pin (num 7) (name GPIO0) (type BiDi))
        (pin (num 8) (name GPIO1) (type BiDi))
        (pin (num 9) (name GPIO3) (type BiDi))
        (pin (num 10) (name GPIO2) (type BiDi))
        (pin (num 11) (name GPIO4) (type BiDi))
        (pin (num 12) (name GND) (type power_in))
        (pin (num 13) (name Reset) (type input))
        (pin (num 14) (name CLK) (type input))
        (pin (num 15) (name MISO) (type output))
        (pin (num 16) (name MOSI) (type input))
        (pin (num 17) (name NSS) (type input))
        (pin (num 18) (name ScanMode) (type input))
        (pin (num 19) (name PPS) (type input))
        (pin (num 20) (name GND) (type power_in))
        (pin (num 21) (name VDD) (type power_in))
        (pin (num 22) (name GND) (type power_in))
        (pin (num 23) (name VDDB) (type power_in))
        (pin (num 24) (name GND) (type power_in))
        (pin (num 25) (name GPS_TX) (type output))
        (pin (num 26) (name GPS_RX) (type input))))
    (libpart (lib raspi) (part Raspi_2_3)
      (description "expansion header for Raspberry Pi 2 & 3")
      (docs https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/RPI-3B-V1_2-SCHEMATIC-REDUCED.pdf)
      (fields
        (field (name Reference) U)
        (field (name Value) Raspi_2_3)
        (field (name Footprint) Pin_Headers:Pin_Header_Straight_2x20))
      (pins
        (pin (num 1) (name 3V3) (type power_out))
        (pin (num 2) (name 5V) (type passive))
        (pin (num 3) (name "(SDA1)_GPIO2") (type BiDi))
        (pin (num 4) (name 5V) (type passive))
        (pin (num 5) (name "(SCL1)_GPIO3") (type BiDi))
        (pin (num 6) (name GND) (type passive))
        (pin (num 7) (name "(GCLK)_GPIO4") (type BiDi))
        (pin (num 8) (name "(TXD0)_GPIO14") (type BiDi))
        (pin (num 9) (name GND) (type passive))
        (pin (num 10) (name "(RXD0)_GPIO15") (type BiDi))
        (pin (num 11) (name "GPIO17_(GEN0)") (type BiDi))
        (pin (num 12) (name "GPIO18_(GEN1)") (type BiDi))
        (pin (num 13) (name "GPIO27_(GEN2)") (type BiDi))
        (pin (num 14) (name GND) (type passive))
        (pin (num 15) (name "GPIO22_(GEN3)") (type BiDi))
        (pin (num 16) (name "GPIO23_(GEN4)") (type BiDi))
        (pin (num 17) (name 3V3) (type passive))
        (pin (num 18) (name "GPIO24_(GEN5)") (type BiDi))
        (pin (num 19) (name "(SPI_MOSI)_GPIO10") (type BiDi))
        (pin (num 20) (name GND) (type passive))
        (pin (num 21) (name "(SPI_MISO)_GPIO9") (type BiDi))
        (pin (num 22) (name "GPIO25_(GEN6)") (type BiDi))
        (pin (num 23) (name "(SPI_SCLK)_GPIO11") (type BiDi))
        (pin (num 24) (name "(~SPI_CE0~)_GPIO8") (type BiDi))
        (pin (num 25) (name GND) (type passive))
        (pin (num 26) (name "(~SPI_CE1~)_GPIO7") (type BiDi))
        (pin (num 27) (name ID_SD) (type BiDi))
        (pin (num 28) (name ID_SC) (type BiDi))
        (pin (num 29) (name GPIO5) (type BiDi))
        (pin (num 30) (name GND) (type passive))
        (pin (num 31) (name GPIO6) (type BiDi))
        (pin (num 32) (name GPIO12) (type BiDi))
        (pin (num 33) (name GPIO13) (type BiDi))
        (pin (num 34) (name GND) (type passive))
        (pin (num 35) (name GPIO19) (type BiDi))
        (pin (num 36) (name GPIO16) (type BiDi))
        (pin (num 37) (name GPIO26) (type BiDi))
        (pin (num 38) (name GPIO20) (type BiDi))
        (pin (num 39) (name GND) (type passive))
        (pin (num 40) (name GPIO21) (type BiDi))))
    (libpart (lib sensirion) (part SHT21)
      (aliases
        (alias SHT21S)
        (alias SHT21P))
      (description "Sensirion SHT21")
      (fields
        (field (name Reference) U)
        (field (name Value) SHT21))
      (pins
        (pin (num 1) (name SDA) (type BiDi))
        (pin (num 2) (name VSS) (type power_out))
        (pin (num 3) (name NC) (type NotConnected))
        (pin (num 4) (name NC) (type NotConnected))
        (pin (num 5) (name VDD) (type power_in))
        (pin (num 6) (name SCL) (type input)))))
  (libraries
    (library (logical Connector)
      (uri "/Library/Application Support/kicad/library/Connector.lib"))
    (library (logical backplane-rescue)
      (uri /Users/adam/Documents/kicad/ic880a-backplane/backplane-rescue.lib))
    (library (logical device)
      (uri "/Library/Application Support/kicad/library/device.lib"))
    (library (logical headers)
      (uri /Users/adam/Documents/kicad/ic880a-backplane/headers.lib))
    (library (logical ic880a-spi)
      (uri /Users/adam/Documents/kicad/ic880a-backplane/ic880a-spi.lib))
    (library (logical raspi)
      (uri /Users/adam/Documents/kicad/ic880a-backplane/raspi.lib))
    (library (logical sensirion)
      (uri /Users/adam/Documents/kicad/ic880a-backplane/sensirion.lib)))
  (nets
    (net (code 1) (name "Net-(U2-Pad23)")
      (node (ref U2) (pin 23)))
    (net (code 2) (name "Net-(U1-Pad6)")
      (node (ref U1) (pin 6)))
    (net (code 3) (name "Net-(U1-Pad7)")
      (node (ref U1) (pin 7)))
    (net (code 4) (name "Net-(U1-Pad11)")
      (node (ref U1) (pin 11)))
    (net (code 5) (name "Net-(U1-Pad31)")
      (node (ref U1) (pin 31)))
    (net (code 6) (name "Net-(U1-Pad32)")
      (node (ref U1) (pin 32)))
    (net (code 7) (name "Net-(U1-Pad13)")
      (node (ref U1) (pin 13)))
    (net (code 8) (name "Net-(U1-Pad33)")
      (node (ref U1) (pin 33)))
    (net (code 9) (name "Net-(U1-Pad15)")
      (node (ref U1) (pin 15)))
    (net (code 10) (name "Net-(U1-Pad35)")
      (node (ref U1) (pin 35)))
    (net (code 11) (name "Net-(U1-Pad16)")
      (node (ref U1) (pin 16)))
    (net (code 12) (name "Net-(U1-Pad26)")
      (node (ref U1) (pin 26)))
    (net (code 13) (name "Net-(U1-Pad36)")
      (node (ref U1) (pin 36)))
    (net (code 14) (name "Net-(U1-Pad27)")
      (node (ref U1) (pin 27)))
    (net (code 15) (name "Net-(U1-Pad37)")
      (node (ref U1) (pin 37)))
    (net (code 16) (name "Net-(U1-Pad18)")
      (node (ref U1) (pin 18)))
    (net (code 17) (name "Net-(U1-Pad28)")
      (node (ref U1) (pin 28)))
    (net (code 18) (name "Net-(U1-Pad29)")
      (node (ref U1) (pin 29)))
    (net (code 19) (name GND)
      (node (ref U1) (pin 25))
      (node (ref U1) (pin 34))
      (node (ref U1) (pin 39))
      (node (ref U2) (pin 1))
      (node (ref U2) (pin 20))
      (node (ref U2) (pin 12))
      (node (ref J1) (pin 3))
      (node (ref D2) (pin 1))
      (node (ref D1) (pin 1))
      (node (ref U1) (pin 14))
      (node (ref U1) (pin 30))
      (node (ref U1) (pin 20))
      (node (ref U1) (pin 9))
      (node (ref C3) (pin 1))
      (node (ref U2) (pin 24))
      (node (ref J4) (pin 2))
      (node (ref U3) (pin 2))
      (node (ref J5) (pin 2))
      (node (ref C1) (pin 1))
      (node (ref J3) (pin 3))
      (node (ref J3) (pin 2))
      (node (ref C2) (pin 1))
      (node (ref J2) (pin 1))
      (node (ref D5) (pin 2))
      (node (ref D6) (pin 2))
      (node (ref U2) (pin 22)))
    (net (code 20) (name "Net-(U2-Pad2)")
      (node (ref U2) (pin 2)))
    (net (code 21) (name "Net-(U2-Pad3)")
      (node (ref U2) (pin 3)))
    (net (code 22) (name "Net-(U2-Pad4)")
      (node (ref U2) (pin 4)))
    (net (code 23) (name "Net-(U2-Pad5)")
      (node (ref U2) (pin 5)))
    (net (code 24) (name "Net-(U2-Pad6)")
      (node (ref U2) (pin 6)))
    (net (code 25) (name "Net-(U2-Pad7)")
      (node (ref U2) (pin 7)))
    (net (code 26) (name "Net-(U2-Pad8)")
      (node (ref U2) (pin 8)))
    (net (code 27) (name "Net-(U2-Pad9)")
      (node (ref U2) (pin 9)))
    (net (code 28) (name "Net-(U2-Pad10)")
      (node (ref U2) (pin 10)))
    (net (code 29) (name "Net-(U2-Pad11)")
      (node (ref U2) (pin 11)))
    (net (code 30) (name "Net-(U2-Pad18)")
      (node (ref U2) (pin 18)))
    (net (code 31) (name "Net-(U2-Pad19)")
      (node (ref U2) (pin 19)))
    (net (code 32) (name "Net-(D2-Pad2)")
      (node (ref R2) (pin 2))
      (node (ref D2) (pin 2)))
    (net (code 33) (name "Net-(D1-Pad2)")
      (node (ref D1) (pin 2))
      (node (ref R1) (pin 2)))
    (net (code 34) (name "Net-(U2-Pad25)")
      (node (ref U2) (pin 25)))
    (net (code 35) (name "Net-(U2-Pad26)")
      (node (ref U2) (pin 26)))
    (net (code 36) (name "Net-(U3-Pad3)")
      (node (ref U3) (pin 3)))
    (net (code 37) (name "Net-(U3-Pad4)")
      (node (ref U3) (pin 4)))
    (net (code 38) (name "Net-(C2-Pad2)")
      (node (ref D4) (pin 1))
      (node (ref J5) (pin 1))
      (node (ref C2) (pin 2)))
    (net (code 39) (name PPS)
      (node (ref U1) (pin 12))
      (node (ref J4) (pin 5)))
    (net (code 40) (name MOSI)
      (node (ref U1) (pin 19))
      (node (ref U2) (pin 16)))
    (net (code 41) (name MISO)
      (node (ref U2) (pin 15))
      (node (ref U1) (pin 21)))
    (net (code 42) (name CLK)
      (node (ref U2) (pin 14))
      (node (ref U1) (pin 23)))
    (net (code 43) (name CE0)
      (node (ref U2) (pin 17))
      (node (ref U1) (pin 24)))
    (net (code 44) (name IC880A_RST)
      (node (ref U2) (pin 13))
      (node (ref U1) (pin 22)))
    (net (code 45) (name SCL)
      (node (ref J1) (pin 2))
      (node (ref R4) (pin 2))
      (node (ref U3) (pin 6))
      (node (ref U1) (pin 5)))
    (net (code 46) (name 3.3V)
      (node (ref J1) (pin 4))
      (node (ref U3) (pin 5))
      (node (ref C1) (pin 2))
      (node (ref R5) (pin 1))
      (node (ref U1) (pin 17))
      (node (ref U1) (pin 1))
      (node (ref R4) (pin 1)))
    (net (code 47) (name SDA)
      (node (ref U1) (pin 3))
      (node (ref R5) (pin 2))
      (node (ref U3) (pin 1))
      (node (ref J1) (pin 1)))
    (net (code 48) (name LED2)
      (node (ref R2) (pin 1))
      (node (ref U1) (pin 38)))
    (net (code 49) (name LED1)
      (node (ref U1) (pin 40))
      (node (ref R1) (pin 1)))
    (net (code 50) (name TX)
      (node (ref U1) (pin 8))
      (node (ref J4) (pin 4)))
    (net (code 51) (name RX)
      (node (ref U1) (pin 10))
      (node (ref J4) (pin 3)))
    (net (code 52) (name 5V)
      (node (ref U1) (pin 2))
      (node (ref U1) (pin 4))
      (node (ref U2) (pin 21))
      (node (ref C3) (pin 2))
      (node (ref J4) (pin 1))
      (node (ref J5) (pin 3))
      (node (ref J1) (pin 5)))
    (net (code 53) (name VIN)
      (node (ref D6) (pin 1))
      (node (ref J2) (pin 2))
      (node (ref D4) (pin 2))
      (node (ref D5) (pin 1))
      (node (ref J3) (pin 1)))))