4 layers70 × 70 mm 449pcb v1, the printed circuit board in 3D

449pcb v1

F22 Distributed Embedded Final Project: UWB Drive-by-Wireless

Size: 70 × 70 mm
Copper layers: 4
Thickness: 1.6 mm
Parts: 56
Nets: 76
Pads: 284
Tracks, vias: 454, 418
Pours: 2
Routed: Yes
KiCad: KiCad 6 (file 20211014)
Created: 6 Nov 2022
Updated: 8 Dec 2022

Overview

449pcb v1 is an open-source printed circuit board by asinghani, from the asinghani/drive-by-wireless repository on GitHub. It is a 4-layer board of 70 × 70 mm with 56 parts on 76 nets, routed with 454 tracks and 418 vias.

It is built around the RP2040, DWM3000 and ECS-120-20-3X-TR. Its parts include 17 resistors, 16 capacitors, 7 connectors, 4 ICs and 4 diodes. It belongs with the RP2040 boards of this library.

Main components

README

README.md

Distributed Embedded Final Project

UWB drive-by-wireless

Build Instructions

Clone pico-sdk and pico-extras and put them in your environment variables as PICO_SDK_PATH and PICO_EXTRAS_PATH. Also clone FreeRTOS-Kernel, smp branch and put its path as FREERTOS_KERNEL_PATH
cd firmware
rm -r build; mkdir build; cd build (its safest to delete and re-make the build directory every time because CMake caches things incorrectly sometimes)
cmake .. && make -j8 (this will build all 3 targets - cockpit, steering, and drivetrain)
This should yield zone_cockpit.uf2, zone_steering.uf2, and zone_drivetrain.uf2 which can be flashed to the boards.

File Structure

text

- firmware/ (the directory for the firmware)
    - main.c (main entry point, shouldn't put any more code into this file)
    - utils.h (utility functions for math, safety, etc.)
    - config.h (configuration of GPIO pins, etc.)
    - FreeRTOSConfig.h
    - z_cockpit/
        - main_cockpit.c (entry point for cockpit zone)
    - z_drivetrain/
        - main_drivetrain.c (entry point for drivetrain zone)
    - z_steering/
        - main_steering.c (entry point for steering zone)
    - common/ (common stuff)
        - freertos_callbacks.c
    - peripherals/ (drivers for hardware peripherals)
        - testpoints.h (driver for test points)

- experimental/ (for test programs)

- scripts/ (scripts to run on a host machine)
    - proxy_gui.py (the steering wheel proxy, to run on Windows)

- hardware/ (hardware / CAD files)
    - 449pcb_v1/ (PCB CAD)
    - schematic.pdf (board schematic, for easy reference)

Parts

Qty	Value	Footprint	References
6	100n	Capacitor_SMD:C_0603_1608Metric	C5, C10, C13, C14, C15, C17
6	220R	Resistor_SMD:R_0603_1608Metric	R1, R2, R6, R8, R13, R14
5	47R	Resistor_SMD:R_0603_1608Metric	R5, R9, R10, R11, R12
4	1u	Capacitor_SMD:C_0603_1608Metric	C2, C4, C12, C16
4	hole	MountingHole:MountingHole_3.2mm_M3_Pad_Via	H1, H2, H3, H4
2	10u	Capacitor_SMD:C_0603_1608Metric	C1, C6
2	1k	Resistor_SMD:R_0603_1608Metric	R7, R15
2	27R	Resistor_SMD:R_0603_1608Metric	R16, R17
2	27p	Capacitor_SMD:C_0603_1608Metric	C7, C8
2	5K1	Resistor_SMD:R_0603_1608Metric	R3, R4
1	0.1u	Capacitor_SMD:C_0603_1608Metric	C9
1	22u	Capacitor_SMD:C_0603_1608Metric	C3
1	AZ1117-3.3	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U1
1	BlinkL	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J4
1	BlinkR	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J5
1	DWM3000	DWM3000:DWM3000	U2
1	DW_PWR	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	JP2
1	DW_RST	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	JP1
1	Debug	Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical	J7
1	ECS-120-20-3X-TR	ECS-120-20-3X-TR:XTAL_ECS-120-20-3X-TR	Y1
1	GD25Q128	Package_SO:SOIC-8_5.23x5.23mm_P1.27mm	U3
1	IO	Connector_PinHeader_2.54mm:PinHeader_1x14_P2.54mm_Vertical	J6
1	PWR	LED_SMD:LED_0805_2012Metric	D4
1	PwrScrew	TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x02_P3.50mm_Horizontal	J2
1	RP2040	RP2040:RP2040-QFN-56	U4
1	RXLED	LED_SMD:LED_0805_2012Metric	D2
1	Reset	Button_Switch_SMD:SW_SPST_PTS810	SW1
1	STATUS	LED_SMD:LED_0805_2012Metric	D3
1	TXLED	LED_SMD:LED_0805_2012Metric	D1
1	TestPts	Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical	J1
1	USB_USER	USB_C_Receptacle_HRO_TYPE-C-31-M-12:USB_C_HRO-31-M-12_nofront	J3

Questions

How big is the 449pcb v1 PCB?

It measures 70 × 70 mm and has 4 copper layers, 1.6 mm thick.

What parts does the 449pcb v1 use?

56 parts, built around the RP2040, DWM3000 and ECS-120-20-3X-TR. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the 449pcb v1 KiCad files?

From the asinghani/drive-by-wireless repository on GitHub, at the commit this page was made from: the board is hardware/449pcb_v1/449pcb_v1.kicad_pcb and its schematic hardware/449pcb_v1/449pcb_v1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 449pcb v1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask asinghani before reusing the design.

Category and platform

RP2040

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/asinghani-drive-by-wireless" title="449pcb v1 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/asinghani-drive-by-wireless.jpg" alt="449pcb v1" width="1200" height="900">

A picture that opens the board, for a README

[![449pcb v1](https://pcbkit.io/embed/boards/asinghani-drive-by-wireless.jpg?size=s)](https://pcbkit.io/boards/asinghani-drive-by-wireless)

Source

Repository: asinghani/drive-by-wireless
Board file: hardware/449pcb_v1/449pcb_v1.kicad_pcb
Commit: 7bf71c1
Licence: Not stated

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