# Financial Yellow Flying Cab ## Description PCB Layout with Manual Component Placement by Interface ## Project Details - **Owner:** lucafab10 - **Created:** 11/20/2025 - **Last Updated:** 11/20/2025 - **Visibility:** Public - **PWR3V3:** 0.15 - **3.3V_total_current:** 150mA - **I2C:** 0.15 - **PWR3V3_required_width_mm:** 0.15mm - **SPI:** 0.15 - **System Architecture:** graph LR PWR3V3(3.3V Rail) GND(GND) Teensy[Teensy 4.1 MCU] IIS3DWB[IIS3DWB Sensor] OLED[SSD1306 OLED Display] GPS[GPS Module] BTN[Pushbutton (Pin33)] PWR3V3 --> Teensy PWR3V3 --> IIS3DWB PWR3V3 --> OLED PWR3V3 --> GPS GND --> Teensy GND --> IIS3DWB GND --> OLED GND --> GPS Teensy -- SPI --> IIS3DWB Teensy -- I2C --> OLED Teensy -- UART2 --> GPS Teensy -- Pin33 --> BTN - **UART2:** 0.15 ## Key Components ### J1 — [2-644861-2](https://www.flux.ai/adrian95/2-644861-2~vfq.md) - Manufacturer Name: TE Connectivity AMP Connectors - Manufacturer Part Number: 2-644861-2 - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=644861&DocType=Customer+Drawing&DocLang=English&PartCntxt=2-644861-2&DocFormat=pdf - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector - Role: Connector - Role Details: VIN header for 5V VIN and GND **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] ### J2 — [2-644861-2](https://www.flux.ai/adrian95/2-644861-2~vfq.md) - Role Details: Pushbutton header for Pin33 and GND - Part Type: Connector - Role: Connector - Manufacturer Part Number: 2-644861-2 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.te.com/commerce/DocumentDelivery/DDEController?Action=srchrtrv&DocNm=644861&DocType=Customer+Drawing&DocLang=English&PartCntxt=2-644861-2&DocFormat=pdf - Manufacturer Name: TE Connectivity AMP Connectors **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] ### J3 — [0901301106](https://www.flux.ai/adrian95/0901301106~t1x.md) - KiCAD Orientation Offset: 270° - Part Type: Connector - keepout_zone_mm: 10mm - Role Details: GPS module header: GND, VCC, TX, RX, PPS, EN - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Molex - Role: Connector - Manufacturer Part Number: 0901301106 - Datasheet URL: https://tools.molex.com/pdm_docs/sd/901301106_sd.pdf **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] ### U1 — [Teensy 4.1](https://www.flux.ai/adrian95/teensy-4p1~xp5.md) - Manufacturer Name: SparkFun Electronics - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Development Board - KiCAD Orientation Offset: 90° - Role Details: Main MCU - Manufacturer Part Number: DEV-16996 - Imax_mA: 100mA - Datasheet URL: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2942/DEV-16996_Web.pdf - Role: Microcontroller **Pins:** - 0_ [pin 2] - 1_ [pin 3] - 10_ [pin 12] - 11_ [pin 13] - 12_ [pin 14] - 13_ [pin 35] - 14_ [pin 36] - 15_ [pin 37] - 16_ [pin 38] - 17_ [pin 39] - 18_ [pin 40] - 19_ [pin 41] - 2_ [pin 4] - 20_ [pin 42] - 21_ [pin 43] - 22_ [pin 44] - 23_ [pin 45] - 24_ [pin 16] - 25_ [pin 17] - 26_ [pin 18] - 27_ [pin 19] - 28_ [pin 20] - 29_ [pin 21] - 3_ [pin 5] - 30_ [pin 22] - 31_ [pin 23] - 32_ [pin 24] - 33_ [pin 25] - 34_ [pin 26] - 35_ [pin 27] - 36_ [pin 28] - 37_ [pin 29] - 38_ [pin 30] - 39_ [pin 31] - 3V [pin 15] - 3V3 [pin 46] - 4_ [pin 6] - 40_ [pin 32] - 41_ [pin 33] - 5_ [pin 7] - 5V [pin 48] - 6_ [pin 8] - 7_ [pin 9] - 8_ [pin 10] - 9_ [pin 11] - G_1 [pin 1] - G_2 [pin 34] - G_3 [pin 47] ### U2 — [IIS3DWBTR](https://www.flux.ai/jecstronic/iis3dwbtr~peg.md) - KiCAD Orientation Offset: 0° - Part Type: Sensor - Datasheet URL: https://www.st.com/content/ccc/resource/technical/document/datasheet/group3/14/0e/2b/1d/77/d0/46/f6/DM00501492/files/DM00501492.pdf/jcr:content/translations/en.DM00501492.pdf - Role: Sensor - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: IIS3DWBTR - Role Details: 3-axis accelerometer - Manufacturer Name: STMicroelectronics **Pins:** - CS [pin 12] - GND [pin 6] - GND [pin 7] - INT1 [pin 4] - INT2 [pin 9] - Reserved [pin 11] - Reserved [pin 2] - Reserved [pin 3] - Reserved [pin 10] - SDI/SDO/SDA [pin 14] - SDO/SA0 [pin 1] - SPC/SCL [pin 13] - VDD [pin 8] - VDD_IO [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/lucafab10/financial-yellow-flying-cab~mv](https://www.flux.ai/lucafab10/financial-yellow-flying-cab~mv).* --- *Generated from [https://www.flux.ai/lucafab10/financial-yellow-flying-cab~mv](https://www.flux.ai/lucafab10/financial-yellow-flying-cab~mv)*