HardLabs

RadHardSchematics

FraserD404·Spr24-RadHard-Research·use these/RadHardSchematics.kicad_pcb

RadHardSchematics PCB layout, top view — open source AVR/Arduino board by FraserD404

About the RadHardSchematics PCB

RadHardSchematics is an open source AVR/Arduino PCB design by FraserD404, published on GitHub. It is a 2-layer board measuring 203 × 79.7 mm, with 34 components from 15 distinct parts.

Its main chip is the Arduino_UNO_R3, from the AVR/Arduino family. Other key parts include the 74CBTLV3257, AT24CS04-SSHM, AT24CS04-XHM, CAT24C 512 and CAT24C 512XHM. By type, the board carries 23 ICs, 10 resistors and 1 module.

From the project

Code for research

This code initializes EEPROMs on a PCB in select banks and then continuously dumps the data to see if there has been a bit flip. This code is designed to run on a Raspberry Pi 4 with wiringPi library on a 1 MHz I2C bus.

To compile on a Raspberry Pi: gcc -o rad radpicode.c -l wiringPi

Memory Usage: ~25 MB allocated total for 16 EEPROMs

Main components on the RadHardSchematics

74CBTLV3257AT24CS04-SSHMAT24CS04-XHMCAT24C 512CAT24C 512XHMAT24CS01-SSHMAT24CS32-SSHMCAT24C128 SSHMAT24CS01-XHMAT24CS32-XHMCAT24C128 XHMPCA9306DCArduino_UNO_R3

RadHardSchematics bill of materials (BOM)

34 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
74CBTLV3257
U1, U2
2
AT24CS04-SSHM
U3, U4
2
AT24CS04-XHM
U5, U6
2
CAT24C 512
U7, U8
2
CAT24C 512XHM
U9, U10
2
AT24CS01-SSHM
U11, U14
2
AT24CS32-SSHM
U12, U15
2
CAT24C128 SSHM
U13, U16
2
AT24CS01-XHM
U17, U20
2
AT24CS32-XHM
U18, U21
2
CAT24C128 XHM
U19, U22
1
PCA9306DC
U24
1
Arduino_UNO_R3
A1
3
10K
R1, R2, R8
7
10K
10k
R9, R10, R11, R12, R13, R14, R15

RadHardSchematics design files

The KiCad project lives in the FraserD404/Spr24-RadHard-Research repository on GitHub; these links point at the commit this page was built from.

RadHardSchematics: common questions

What microcontroller does the RadHardSchematics use?

The RadHardSchematics is built around the Arduino_UNO_R3, from the AVR/Arduino family.

How big is the RadHardSchematics PCB?

The RadHardSchematics measures 203 × 79.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the RadHardSchematics?

34 components, from 15 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the RadHardSchematics design files?

From the FraserD404/Spr24-RadHard-Research repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the RadHardSchematics design in my own project?

The repository has no license, so all rights stay with FraserD404. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the RadHardSchematics without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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