# [2-layer] JLCPCB Constraints ## 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:** bruceapplesauce - **Created:** 2/3/2024 - **Last Updated:** 2/3/2024 - **Visibility:** Public ## Key Components ### IC1 — [DS3231M+](https://www.flux.ai/vasyl/ds3231mplus~w6.md) - Manufacturer Part Number: DS3231M+ - Manufacturer Name: Analog Devices Inc./Maxim Integrated - Datasheet URL: https://datasheets.maximintegrated.com/en/ds/DS3231M.pdf - Part Type: Integrated Circuit **Pins:** - ~INT~/SQW [pin 3] - ~RST [pin 4] - 32KHZ [pin 1] - GND [pin 13] - SCL [pin 16] - SDA [pin 15] - VBAT [pin 14] - VCC [pin 2] ### U1 — [ESP32-WROOM-32](https://www.flux.ai/vasy_skral/esp32-wroom-32~mxw.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Part Type: Integrated Circuit - Manufacturer Part Number: ESP32-WROOM-32 - Manufacturer Name: Espressif Systems **Pins:** - EN [pin 3] - GND [pin 15] - GND [pin 39] - GND [pin 38] - GND [pin 1] - 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] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/bruceapplesauce/2-layer-jlcpcb-constraints~1l](https://www.flux.ai/bruceapplesauce/2-layer-jlcpcb-constraints~1l).* --- *Generated from [https://www.flux.ai/bruceapplesauce/2-layer-jlcpcb-constraints~1l](https://www.flux.ai/bruceapplesauce/2-layer-jlcpcb-constraints~1l)*