# Receiver

## Description

Welcome to your new project\. Imagine what you can build here\.

## Project Details

- **Owner:** cfuentes77
- **Created:** 9/28/2026
- **Last Updated:** 10/8/2026
- **Visibility:** Public
- **License:** https://creativecommons\.org/licenses/by/4\.0/
- **Functional Group:** MCU U1 Main Controller
- **Copies:** 4

## Key Components

### CN1 — [B2B\-XH\-A\(LF\)\(SN\)](https://flux.ai/lcsc/b2b-xh-alfsn~xrt.md)

- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/XH\-Connectors\_JST\_B2B\-XH\-A\-LF\-SN\_XHsocket\-1\-2P\-pitch2\-5mm\_C158012\.html
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B2B\-XH\-A\-LF\-SN\_C158012\.pdf
- Package or Case Code: CONN\-TH\_B2B\-XH\-A\-LF\-SN
- Pitch: 2\.5mm
- Part Type: Wire To Board / Wire To Wire Connector
- Manufacturer Name: JST
- Gender: Male
- Connector Type: Wire To Board / Wire To Wire Connector
- Manufacturer Part Number: B2B\-XH\-A\(LF\)\(SN\)
- Functional Group: IO CN1 Battery Probe
- Rows: 1
- Positions: 2
- LCSC Part Number: C158012

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### CN2 — [B2B\-XH\-A\(LF\)\(SN\)](https://flux.ai/lcsc/b2b-xh-alfsn~xrt.md)

- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/XH\-Connectors\_JST\_B2B\-XH\-A\-LF\-SN\_XHsocket\-1\-2P\-pitch2\-5mm\_C158012\.html
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B2B\-XH\-A\-LF\-SN\_C158012\.pdf
- Package or Case Code: CONN\-TH\_B2B\-XH\-A\-LF\-SN
- Pitch: 2\.5mm
- Part Type: Wire To Board / Wire To Wire Connector
- Manufacturer Name: JST
- Functional Group: IO CN2 Battery
- Gender: Male
- Connector Type: Wire To Board / Wire To Wire Connector
- Manufacturer Part Number: B2B\-XH\-A\(LF\)\(SN\)
- Rows: 1
- Positions: 2
- LCSC Part Number: C158012

**Pins:**
- 1 [pin 1]
- 2 [pin 2]

### D3 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Role: Protection
- Manufacturer Part Number: USBLC6\-2SC6
- Role Details: Dedicated charging D\+/D\- ESD; CHG\_DP/DM to U11 only
- Symbol Style: parametric\-v1
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Protection
- Manufacturer Name: STMicroelectronics
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750\.pdf/files/CD00050750\.pdf/jcr:content/translations/en\.CD00050750\.pdf
- LCSC Part Number: C7519
- Functional Group: USB J2 Charging

**Pins:**
- GND [pin 2]
- I/O1 [pin 6]
- I/O1 [pin 1]
- I/O2 [pin 3]
- I/O2 [pin 4]
- VBUS [pin 5]

### D4 — [USBLC6\-2SC6](https://flux.ai/vasy_skral/usblc6-2sc6~g1b.md)

- Role: Protection
- Manufacturer Part Number: USBLC6\-2SC6
- Symbol Style: parametric\-v1
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Protection
- Manufacturer Name: STMicroelectronics
- Datasheet URL: https://www\.st\.com/content/ccc/resource/technical/document/datasheet/06/1d/48/9c/6c/20/4a/b2/CD00050750\.pdf/files/CD00050750\.pdf/jcr:content/translations/en\.CD00050750\.pdf
- LCSC Part Number: C7519
- Functional Group: USB J3 Programming

**Pins:**
- GND [pin 2]
- I/O1 [pin 6]
- I/O1 [pin 1]
- I/O2 [pin 3]
- I/O2 [pin 4]
- VBUS [pin 5]

### D5 — [SMBJ5\.0A](https://flux.ai/adrian95/smbj5p0a~lvt.md)

- Functional Group: USB J3 Programming
- Part Type: Diode
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: SMBJ5\.0A
- Manufacturer Name: Littelfuse Inc\.
- Role: Protection
- Datasheet URL: https://www\.littelfuse\.com/\~/media/electronics/datasheets/tvs\_diodes/littelfuse\_tvs\_diode\_smbj\_datasheet\.pdf\.pdf

**Pins:**
- A [pin 2]
- K [pin 1]

### D6 — [SMBJ5\.0A](https://flux.ai/adrian95/smbj5p0a~lvt.md)

- Part Type: Diode
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: SMBJ5\.0A
- Role Details: Charging VBUS TVS; physical polarity and surge clamp coordination still require verification
- Functional Group: USB J2 Charging
- Role: Protection
- Manufacturer Name: Littelfuse Inc\.
- Datasheet URL: https://www\.littelfuse\.com/\~/media/electronics/datasheets/tvs\_diodes/littelfuse\_tvs\_diode\_smbj\_datasheet\.pdf\.pdf

**Pins:**
- A [pin 2]
- K [pin 1]

### F1 — [MF\-MSMF110/24X\-2](https://flux.ai/adrian95/mf-msmf11024x-2~gk0.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Bourns Inc\.
- Functional Group: USB J3 Programming
- Manufacturer Part Number: MF\-MSMF110/24X\-2
- Datasheet URL: https://www\.bourns\.com/docs/product\-datasheets/mf\-msmf\.pdf
- Part Type: Fuse
- Role: Protection

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### F2 — [MF\-MSMF110/24X\-2](https://flux.ai/adrian95/mf-msmf11024x-2~gk0.md)

- Role: Protection
- Role Details: Charging\-port resettable fuse; hot derating and adapter current capability pending
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: Bourns Inc\.
- Functional Group: USB J2 Charging
- Manufacturer Part Number: MF\-MSMF110/24X\-2
- Datasheet URL: https://www\.bourns\.com/docs/product\-datasheets/mf\-msmf\.pdf
- Part Type: Fuse

**Pins:**
- P1 [pin 1]
- P2 [pin 2]

### IC2 — [MCP4726A0T\-E\_CH](https://flux.ai/cherepanyadima/mcp4726a0t-ech.md)

- Manufacturer Name: Microchip
- Functional Group: ANALOG IC2 Command DAC
- Symbol Style: parametric\-v1
- Package or Case Code: SOT\-23\-6
- Part Type: Integrated Circuit
- Manufacturer Part Number: MCP4726A0T\-E/CH
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/8ce6cd442253c8b8db28e1a41aaf2805bea47401cc472d2804c2d790b9f827bc\.pdf

**Pins:**
- SCL [pin 5]
- SDA [pin 4]
- VDD [pin 3]
- VOUT [pin 1]
- VREF [pin 6]
- VSS [pin 2]

### J1 — [U\.FL\-R\-SMT\-1\(10\)](https://flux.ai/jecstronic/upfl-r-smt-110~du.md)

- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Part Number: U\.FL\-R\-SMT\-1\(10\)
- Functional Group: RF U8 LoRa Radio
- Datasheet URL: https://media\.digikey\.com/pdf/Data%20Sheets/Hirose%20PDFs/EDC3\-302540\-10\.tif\.pdf
- Manufacturer Name: Hirose Electric Co Ltd
- Part Type: Connector

**Pins:**
- Center\_Contact [pin 2]
- Outer\_Contact [pin 1]
- Outer\_Contact [pin 3]

### J2 — [USB4960\-00\-C](https://flux.ai/adrian95/usb4960-00-c.md)

- Part Type: Connectors
- Symbol Style: parametric\-v1
- Mount: Surface Mount
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/4098655e1ae24c6e04a3d5c849f1e57a70599131a588b2c70b5da697cb99b549\.pdf
- Manufacturer Part Number: USB4960\-00\-C
- License: https://creativecommons\.org/licenses/by/4\.0/
- Functional Group: USB J2 Charging
- Manufacturer Name: GCT \(GLOBAL CONNECTOR TECHNOLOGY\)

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND\_1 [pin A1]
- GND\_2 [pin A12]
- GND\_3 [pin B1]
- GND\_4 [pin B12]
- GND\_5 [pin S1]
- GND\_6 [pin S2]
- GND\_7 [pin S3]
- GND\_8 [pin S4]
- SBU1 [pin A8]
- SBU2 [pin B8]
- VBUS\_1 [pin A4]
- VBUS\_2 [pin A9]
- VBUS\_3 [pin B4]
- VBUS\_4 [pin B9]

### J3 — [USB4960\-00\-C](https://flux.ai/adrian95/usb4960-00-c.md)

- Part Type: Connectors
- Symbol Style: parametric\-v1
- Functional Group: USB J3 Programming
- Mount: Surface Mount
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/user\-uploaded/4098655e1ae24c6e04a3d5c849f1e57a70599131a588b2c70b5da697cb99b549\.pdf
- Manufacturer Part Number: USB4960\-00\-C
- License: https://creativecommons\.org/licenses/by/4\.0/
- Manufacturer Name: GCT \(GLOBAL CONNECTOR TECHNOLOGY\)

**Pins:**
- CC1 [pin A5]
- CC2 [pin B5]
- DN1 [pin A7]
- DN2 [pin B7]
- DP1 [pin A6]
- DP2 [pin B6]
- GND\_1 [pin A1]
- GND\_2 [pin A12]
- GND\_3 [pin B1]
- GND\_4 [pin B12]
- GND\_5 [pin S1]
- GND\_6 [pin S2]
- GND\_7 [pin S3]
- GND\_8 [pin S4]
- SBU1 [pin A8]
- SBU2 [pin B8]
- VBUS\_1 [pin A4]
- VBUS\_2 [pin A9]
- VBUS\_3 [pin B4]
- VBUS\_4 [pin B9]

### Q1 — [SS8050](https://flux.ai/lcsc/ss8050~nyby.md)

- Manufacturer Part Number: SS8050
- Manufacturer Name: SHIKUES\(时科\)
- Continuous Drain Current: 1\.5A
- Part Type: Bipolar Transistors \- BJT
- LCSC Part Number: C111765
- Role: Switching
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1809211224\_Shikues\-SS8050\_C111765\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Transistors\-NPN\-PNP\_SS8050\-200\-350\-Silk\-screenY1\_C111765\.html
- Drain to Source Voltage: 40V
- Role Details: Fully\-off receiver disconnect for U13; partial\-rail threshold not accepted
- Transistor Type: Bipolar Transistors \- BJT
- Functional Group: USB J3 Programming
- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.6\-P1\.90\-LS2\.8\-BR

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### Q3 — [SS8050](https://flux.ai/lcsc/ss8050~nyby.md)

- Manufacturer Part Number: SS8050
- Manufacturer Name: SHIKUES\(时科\)
- Continuous Drain Current: 1\.5A
- Part Type: Bipolar Transistors \- BJT
- LCSC Part Number: C111765
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1809211224\_Shikues\-SS8050\_C111765\.pdf
- Functional Group: MCU U14 Receiver Control
- Product Info Url: https://lcsc\.com/product\-detail/Transistors\-NPN\-PNP\_SS8050\-200\-350\-Silk\-screenY1\_C111765\.html
- Drain to Source Voltage: 40V
- Transistor Type: Bipolar Transistors \- BJT
- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.6\-P1\.90\-LS2\.8\-BR

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### Q4 — [SS8050](https://flux.ai/lcsc/ss8050~nyby.md)

- Manufacturer Part Number: SS8050
- Manufacturer Name: SHIKUES\(时科\)
- Continuous Drain Current: 1\.5A
- Part Type: Bipolar Transistors \- BJT
- LCSC Part Number: C111765
- JLCPCB Part Class: Extended Part
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/1809211224\_Shikues\-SS8050\_C111765\.pdf
- Functional Group: MCU U14 Receiver Control
- Product Info Url: https://lcsc\.com/product\-detail/Transistors\-NPN\-PNP\_SS8050\-200\-350\-Silk\-screenY1\_C111765\.html
- Drain to Source Voltage: 40V
- Transistor Type: Bipolar Transistors \- BJT
- Package or Case Code: SOT\-23\-3\_L2\.9\-W1\.6\-P1\.90\-LS2\.8\-BR

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

### U10 — [AP63203WU\-7](https://flux.ai/cherepanyadima/ap63203wu-7.md)

- Symbol Style: parametric\-v1
- Manufacturer Part Number: AP63203WU\-7
- Manufacturer Name: Diodes Incorporated
- Functional Group: POWER U10 3V3 Buck
- Part Type: Diode
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AP63200\-AP63201\-AP63203\-AP63205\.pdf

**Pins:**
- BST [pin 6]
- EN [pin 2]
- FB [pin 1]
- GND [pin 4]
- SW [pin 5]
- VIN [pin 3]

### U11 — [BQ25886RGER](https://flux.ai/lcsc/bq25886rger~qygt.md)

- Package or Case Code: VQFN\-24\_L4\.0\-W4\.0\-P0\.50\-TL\-EP2\.8
- JLCPCB Part Class: Extended Part
- Part Type: Battery Management ICs
- Functional Group: POWER U11 Battery Charger
- Manufacturer Part Number: BQ25886RGER
- Manufacturer Name: TI\(德州仪器\)
- LCSC Part Number: C2765094

**Pins:**
- \~\{CE\} [pin 3]
- \~\{PG\} [pin 9]
- BAT [pin 14]
- BAT [pin 13]
- BTST [pin 12]
- D\- [pin 1]
- D\+ [pin 24]
- EP [pin 25]
- GND [pin 20]
- GND [pin 19]
- GND [pin 4]
- ICHGSET [pin 10]
- ILIM [pin 8]
- OTG [pin 5]
- PMID [pin 22]
- PMID [pin 21]
- REGN [pin 11]
- STAT [pin 2]
- SW [pin 18]
- SW [pin 17]
- SYS [pin 16]
- SYS [pin 15]
- TS [pin 7]
- VBUS [pin 23]
- VSET [pin 6]

### U13 — [TS3USB221ARSER](https://flux.ai/lcsc/ts3usb221arser~gx28.md)

- Package or Case Code: UQFN\-10\_L2\.0\-W1\.5\-P0\.50\-BL
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2410010302\_Texas\-Instruments\-TS3USB221ARSER\_C128396\.pdf
- JLCPCB Part Class: Extended Part
- Product Info Url: https://lcsc\.com/product\-detail/USB\_TI\_TS3USB221ARSER\_TS3USB221ARSER\_C128396\.html
- Role Details: Port2 selected; OE pullup R1 toUSB\_3V3 with Q1 receiver rail sink\. Fully\-off disconnect captured; partial\-rail threshold remains unaccepted\.
- Symbol Style: parametric\-v1
- Functional Group: USB J3 Programming
- LCSC Part Number: C128396
- Manufacturer Part Number: TS3USB221ARSER
- Manufacturer Name: TI\(德州仪器\)
- Part Type: USB ICs

**Pins:**
- \~\{OE\} [pin 6]
- 1D\- [pin 2]
- 1D\+ [pin 1]
- 2D\- [pin 4]
- 2D\+ [pin 3]
- D\- [pin 7]
- D\+ [pin 8]
- GND [pin 5]
- S [pin 9]
- VCC [pin 10]

### U14 — [ESP32\-WROOM\-32U](https://flux.ai/kicad-part-library/esp32-wroom-32u~3t2.md)

- Role Details: Flat 32U replacement; powered only MAIN\_3V3\. Original receiver GPIO map preserved; external Wi\-Fi antenna needed\.
- Manufacturer Part Number: ESP32\-WROOM\-32U
- Datasheet URL: https://www\.espressif\.com/sites/default/files/documentation/esp32\-wroom\-32d\_esp32\-wroom\-32u\_datasheet\_en\.pdf
- Functional Group: MCU U14 Receiver Control
- Manufacturer Name: Espressif
- Package or Case Code: ESP32\-WROOM\-32U
- Part Type: RF Module

**Pins:**
- EN [pin 3]
- GND [pin 39]
- GND [pin 15]
- GND [pin 1]
- GND [pin 38]
- IO0 [pin 25]
- IO12 [pin 14]
- IO13 [pin 16]
- IO14 [pin 13]
- IO15 [pin 23]
- IO16 [pin 27]
- IO17 [pin 28]
- IO18 [pin 30]
- IO19 [pin 31]
- IO2 [pin 24]
- IO21 [pin 33]
- IO22 [pin 36]
- IO23 [pin 37]
- IO25 [pin 10]
- IO26 [pin 11]
- IO27 [pin 12]
- IO32 [pin 8]
- IO33 [pin 9]
- IO34 [pin 6]
- IO35 [pin 7]
- IO4 [pin 26]
- IO5 [pin 29]
- NC [pin 32]
- RXD0/IO3 [pin 34]
- SCK/CLK [pin 20]
- SCS/CMD [pin 19]
- SDI/SD1 [pin 22]
- SDO/SD0 [pin 21]
- SENSOR\_VN [pin 5]
- SENSOR\_VP [pin 4]
- SHD/SD2 [pin 17]
- SWP/SD3 [pin 18]
- TXD0/IO1 [pin 35]
- VDD [pin 2]

### U15 — [CH340C](https://flux.ai/vasy_skral/ch340c~xfo.md)

- Datasheet URL: https://datasheet\.lcsc\.com/szlcsc/Jiangsu\-Qin\-Heng\-CH340C\_C84681\.pdf
- Functional Group: USB J3 Programming
- Part Type: Integrated Circuit
- Manufacturer Name: Wah
- Manufacturer Part Number: CH340C

**Pins:**
- \~CTS [pin 9]
- \~DCD [pin 12]
- \~DSR [pin 10]
- \~DTR [pin 13]
- \~RI [pin 11]
- \~RTS [pin 14]
- GND [pin 1]
- NC [pin 7]
- NC [pin 8]
- R232 [pin 15]
- RXD [pin 3]
- TXD [pin 2]
- UD\- [pin 6]
- UD\+ [pin 5]
- V3 [pin 4]
- VCC [pin 16]

### U16 — [TLV76033DBZT](https://flux.ai/adrian95/tlv76033dbzt~aho.md)

- Functional Group: USB J3 Programming
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: TLV76033DBZT
- Datasheet URL: https://www\.ti\.com/lit/ds/symlink/tlv760\.pdf
- License: https://creativecommons\.org/licenses/by/4\.0/
- Part Type: Integrated Circuit

**Pins:**
- GND [pin 3]
- IN [pin 2]
- OUT [pin 1]

### U2 — [ISO1644DWR](https://flux.ai/lcsc/iso1644dwr~4dqk.md)

- Package or Case Code: SOIC\-16\_L10\.3\-W7\.5\-P1\.27\-LS10\.4\-BL
- Functional Group: DIGITAL U2 Isolated I2C
- Manufacturer Part Number: ISO1644DWR
- LCSC Part Number: C5216232
- Manufacturer Name: TI\(德州仪器\)
- JLCPCB Part Class: Extended Part

**Pins:**
- GND1 [pin 2]
- GND1 [pin 8]
- GND2 [pin 15]
- GND2 [pin 9]
- INA [pin 4]
- INB [pin 5]
- INC [pin 10]
- OUTA [pin 13]
- OUTB [pin 12]
- OUTC [pin 7]
- SCL1 [pin 6]
- SCL2 [pin 11]
- SDA1 [pin 3]
- SDA2 [pin 14]
- VCC1 [pin 1]
- VCC2 [pin 16]

### U3 — [OPA197IDBVR](https://flux.ai/lcsc/opa197idbvr~k9j3.md)

- Functional Group: ANALOG U3 Output Amplifier
- LCSC Part Number: C221351
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2409302136\_Texas\-Instruments\-OPA197IDBVR\_C221351\.pdf
- Part Type: Operational Amplifier
- Manufacturer Name: TI\(德州仪器\)
- Package or Case Code: SOT\-23\-5\_L3\.0\-W1\.7\-P0\.95\-LS2\.8\-BR
- Manufacturer Part Number: OPA197IDBVR
- Product Info Url: https://lcsc\.com/product\-detail/Others\_Texas\-Instruments\_OPA197IDBVR\_Texas\-Instruments\-TI\-OPA197IDBVR\_C221351\.html
- JLCPCB Part Class: Extended Part

**Pins:**
- IN\- [pin 4]
- IN\+ [pin 3]
- OUT [pin 1]
- V\- [pin 2]
- V\+ [pin 5]

### U4 — [B0524S\-1WR3](https://flux.ai/lcsc/b0524s-1wr3~b5qj.md)

- JLCPCB Part Class: Extended Part
- Package or Case Code: PWRM\-TH\_BXXXXS\-1W
- Manufacturer Part Number: B0524S\-1WR3
- LCSC Part Number: C3031173
- Functional Group: POWER U4 Isolated Converter
- Part Type: Power Modules
- Manufacturer Name: YLPTEC\(易川\)

**Pins:**
- \-VO [pin 3]
- \+VO [pin 4]
- GND [pin 1]
- VIN [pin 2]

### U5 — [TPS7A1650DGNR](https://flux.ai/lcsc/tps7a1650dgnr~3s6l.md)

- Product Info Url: https://lcsc\.com/product\-detail/Dropout\-Regulators\-LDO\_Texas\-Instruments\-Texas\-Instruments\-TPS7A1650DGNR\_C468238\.html
- Functional Group: POWER U5 Isolated 5V
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2010091033\_Texas\-Instruments\-TPS7A1650DGNR\_C468238\.pdf
- Manufacturer Part Number: TPS7A1650DGNR
- JLCPCB Part Class: Extended Part
- Manufacturer Name: TI\(德州仪器\)
- Package or Case Code: MSOP\-8\_L3\.0\-W3\.0\-P0\.65\-LS5\.0\-BL\-EP
- Part Type: Linear Voltage Regulators \(LDO\)
- LCSC Part Number: C468238

**Pins:**
- DELAY [pin 7]
- EN [pin 5]
- EP [pin 9]
- FB/DNC [pin 2]
- GND [pin 4]
- IN [pin 8]
- NC [pin 6]
- OUT [pin 1]
- PG [pin 3]

### U7 — [AP63205WU\-7](https://flux.ai/jecstronic/ap63205wu-7~ffd.md)

- Manufacturer Part Number: AP63205WU\-7
- Manufacturer Name: Diodes Incorporated
- Datasheet URL: https://www\.diodes\.com/assets/Datasheets/AP63200\-AP63201\-AP63203\-AP63205\.pdf
- Part Type: Integrated Circuit
- Functional Group: POWER U7 5V Buck
- License: https://creativecommons\.org/licenses/by/4\.0/

**Pins:**
- BST [pin 6]
- EN [pin 2]
- FB [pin 1]
- GND [pin 4]
- SW [pin 5]
- VIN [pin 3]

### U8 — [E22\-900M22S](https://flux.ai/lcsc/e22-900m22s~cetv.md)

- JLCPCB Part Class: Extended Part
- Functional Group: RF U8 LoRa Radio
- Manufacturer Part Number: E22\-900M22S
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2409251704\_Chengdu\-Ebyte\-Elec\-Tech\-E22\-900M22S\_C411293\.pdf
- Product Info Url: https://lcsc\.com/product\-detail/Wireless\-Modules\_Chengdu\-Ebyte\-Elec\-Tech\-E22\-900M22S\_C411293\.html
- Package or Case Code: WIRELM\-SMD\_E22\-900M22S
- LCSC Part Number: C411293
- Part Type: LoRa Modules
- License: https://creativecommons\.org/licenses/by/4\.0/
- Symbol Style: parametric\-v1
- Manufacturer Name: EBYTE\(亿佰特\)

**Pins:**
- ANT [pin 21]
- BUSY [pin 14]
- DIO1 [pin 13]
- DIO2 [pin 8]
- GND [pin 20]
- GND [pin 3]
- GND [pin 4]
- GND [pin 5]
- GND [pin 10]
- GND [pin 12]
- GND [pin 1]
- GND [pin 11]
- GND [pin 2]
- GND [pin 22]
- MISO [pin 16]
- MOSI [pin 17]
- NRST [pin 15]
- NSS [pin 19]
- RXEN [pin 6]
- SCK [pin 18]
- TXEN [pin 7]
- VCC [pin 9]

### U9 — [B3B\-XH\-A\(LF\)\(SN\)](https://flux.ai/lcsc/b3b-xh-alfsn~wvza.md)

- Package or Case Code: CONN\-TH\_3P\-P2\.50\_A2501WV2\-3P
- Functional Group: IO U9 Analog Output
- Connector Positions: 3
- Manufacturer Part Number: B3B\-XH\-A\(LF\)\(SN\)
- JLCPCB Part Class: Extended Part
- Connector Rows: 1
- Product Info Url: https://lcsc\.com/product\-detail/XH\-Connectors\_JST\-Sales\-America\_B3B\-XH\-A\-LF\-SN\_JST\-Sales\-America\-B3B\-XH\-A\-LF\-SN\_C144394\.html
- Current Rating: 3A
- Manufacturer Name: JST
- Voltage Rating: 250V
- Datasheet URL: https://storage\.googleapis\.com/graviton\-electric\-symbols/document\_assets/lcsc/2304140030\_JST\-B3B\-XH\-A\-LF\-SN\_C144394\.pdf
- Operating Temperature: \-25°C \~ 85°C
- Part Type: Wire To Board / Wire To Wire Connector
- LCSC Part Number: C144394
- Connector Pitch: 2\.50mm
- Connector Type: Headers and Wire Housings

**Pins:**
- 1 [pin 1]
- 2 [pin 2]
- 3 [pin 3]

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/cfuentes77/receiver\~fm](https://flux.ai/cfuentes77/receiver~fm).*

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*Generated from [https://flux\.ai/cfuentes77/receiver\~fm](https://flux.ai/cfuentes77/receiver~fm)*