HardLabs

Enhanced edr

kartiknagare33·enhanced-edr·hardware/edr-hat/edr_hat.net

This repository ships a schematic but no board layout.

About the Enhanced edr PCB

Enhanced edr is an open source PCB design by kartiknagare33, published on GitHub under the MIT license. It is a board, with 18 components from 13 distinct parts.

Other key parts include the MCP2515_CAN, MPU6050, NEO-6M_GPS, DS3231_RTC and W25Q128. By type, the board carries 6 capacitors, 5 ICs, 3 connectors, 3 resistors and 1 LED.

It belongs with the sensors, dev boards & breakouts and power & battery designs in this gallery.

From the project

A forensic-grade vehicle "black box." It continuously records 40 vehicle parameters at 100 Hz into a rolling 20-second buffer, detects a crash through multiple redundant triggers, writes the crash-critical data to tamper-evident storage with a hardware write-lock, and survives lo

A forensic-grade vehicle "black box." It continuously records 40 vehicle parameters at 100 Hz into a rolling 20-second buffer, detects a crash through multiple redundant triggers, writes the crash-critical data to tamper-evident storage with a hardware write-lock, and survives loss of vehicle power long enough to complete that write.

- Node A — Vehicle ECU: ESP32 + MCP2515 CAN module. Broadcasts vehicle data frames (speed, rpm, throttle, brake, temps, fuel, etc.) on the CAN bus. See firmware/node-a-esp32/. - Node B — EDR Unit: Raspberry Pi 4B + MPU6050 (IMU), NEO-6M (GPS), DS3231 (RTC)…

Main components on the Enhanced edr

MCP2515_CANMPU6050NEO-6M_GPSDS3231_RTCW25Q128

Enhanced edr bill of materials (BOM)

18 components, 13 distinct parts.

QtyPartRefs
1
MCP2515_CAN
U1
1
MPU6050
U2
1
NEO-6M_GPS
U3
1
DS3231_RTC
U4
1
W25Q128
U5
1
RPi_GPIO_2x20
J1
1
CAN_OUT
J2
1
PWR_FAIL
J3
1
STATUS
LED1
5
100nF
C1, C2, C3, C4, C5
1
10uF
C6
2
4.7k
R1, R2
1
330
R3

Enhanced edr design files

The KiCad project lives in the kartiknagare33/enhanced-edr repository on GitHub; these links point at the commit this page was built from.

Enhanced edr: common questions

How many components are on the Enhanced edr?

18 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Enhanced edr design files?

From the kartiknagare33/enhanced-edr repository on GitHub, which has a netlist; the links under Design files point to each one.

Can I use the Enhanced edr design in my own project?

Yes, under the terms of its MIT license, which kartiknagare33 chose for the repository.

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