# [2-layer] JLCPCB Constraints 9PQK
## Description
Use this template if you're planning to get your 1 to 2-layer board manufactured in JLCPCB. It has the via min/max and trace width constraints already baked as global rules. #project-template #template #manufacturer-design-rules
## Project Details
- **Owner:** mertglm
- **Created:** 12/8/2024
- **Last Updated:** 12/8/2024
- **Visibility:** Public
## Key Components
### K1 — [SRD-05VDC-SL-C](https://www.flux.ai/jecstronic/srd-05vdc-sl-c~oap.md)
- License: https://creativecommons.org/licenses/by/4.0/
- Part Type: Relay
- Datasheet URL: https://datasheet.lcsc.com/lcsc/1811021933_Ningbo-Songle-Relay-SRD-05VDC-SL-C_C35449.pdf
- Manufacturer Name: Ningbo Songle Relay
- Manufacturer Part Number: SRD-05VDC-SL-C
**Pins:**
- A1 [pin A1]
- A2 [pin A2]
- COM [pin COM]
- NC [pin NC]
- NO [pin NO]
### Q1 — [2N3904S-RTK-PS](https://www.flux.ai/adrian95/2n3904s-rtk-ps~8gp.md)
- License: https://creativecommons.org/licenses/by/4.0/
- Manufacturer Part Number: 2N3904S-RTK/PS
- Manufacturer Name: KEC Semicon
- Datasheet URL: https://datasheet.lcsc.com/lcsc/1806151220_KEC-Semicon-2N3904S-RTK-PS_C18536.pdf
- Part Type: Transistor
**Pins:**
- B [pin 2]
- C [pin 3]
- E [pin 1]
### U1 — [PCF8574DWR](https://www.flux.ai/jecstronic/pcf8574dwr~mlh.md)
- Manufacturer Name: Texas Instruments
- Manufacturer Part Number: PCF8574DWR
- Datasheet URL: https://rocelec.widen.net/view/pdf/zsmwgcsqj9/scps068j.pdf?t.download=true&u=5oefqw
- License: https://creativecommons.org/licenses/by/4.0/
- Part Type: Integrated Circuit
**Pins:**
- ~INT~ [pin 13]
- A0 [pin 1]
- A1 [pin 2]
- A2 [pin 3]
- P0 [pin 4]
- P1 [pin 5]
- P2 [pin 6]
- P3 [pin 7]
- P4 [pin 9]
- P5 [pin 10]
- P6 [pin 11]
- P7 [pin 12]
- SCL [pin 14]
- SDA [pin 15]
- VDD [pin 16]
- VSS [pin 8]
### U2 — [ADS1115IDGST](https://www.flux.ai/adrian95/ads1115idgst~uqd.md)
- Part Type: Integrated Circuit
- Manufacturer Part Number: ADS1115IDGST
- Manufacturer Name: Texas Instruments
- License: https://creativecommons.org/licenses/by/4.0/
- Datasheet URL: https://www.ti.com/lit/ds/symlink/ads1113.pdf
**Pins:**
- ADDR [pin 1]
- AIN0 [pin 4]
- AIN1 [pin 5]
- AIN2 [pin 6]
- AIN3 [pin 7]
- ALERT/RDY [pin 2]
- GND [pin 3]
- SCL [pin 10]
- SDA [pin 9]
- VDD [pin 8]
### U6 — [ESP32-DEVKIT-V1](https://www.flux.ai/jharwinbarrozo/esp32-devkit-v1~7xd.md)
- Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf
- Manufacturer Part Number: ESP32-DEVKIT-V1
- Part Type: Module
- Manufacturer Name: Espressif Systems
- Symbol Style: Parametric
**Pins:**
- 3V3 [pin 1]
- D12 [pin 27]
- D13 [pin 28]
- D14 [pin 26]
- D15 [pin 3]
- D18 [pin 9]
- D19 [pin 10]
- D2 [pin 4]
- D21 [pin 11]
- D22 [pin 14]
- D23 [pin 15]
- D25 [pin 23]
- D26 [pin 24]
- D27 [pin 25]
- D32 [pin 21]
- D33 [pin 22]
- D34 [pin 19]
- D35 [pin 20]
- D4 [pin 5]
- D5 [pin 8]
- EN [pin 16]
- GND [pin 2]
- GND_1 [pin 29]
- RX0 [pin 12]
- RX2 [pin 6]
- TX0 [pin 13]
- TX2 [pin 7]
- VIN [pin 30]
- VN [pin 18]
- VP [pin 17]
*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mertglm/2-layer-jlcpcb-constraints-9pqk~vi](https://www.flux.ai/mertglm/2-layer-jlcpcb-constraints-9pqk~vi).*
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*Generated from [https://www.flux.ai/mertglm/2-layer-jlcpcb-constraints-9pqk~vi](https://www.flux.ai/mertglm/2-layer-jlcpcb-constraints-9pqk~vi)*