HardLabs

Fram prototype

uw-madison-chem-shops·fram-prototype·kicad/fram-prototype.kicad_pcb

Fram prototype PCB layout, top view — open source AVR/Arduino board by uw-madison-chem-shops

About the Fram prototype PCB

Fram prototype is an open source AVR/Arduino PCB design by uw-madison-chem-shops, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 91.4 × 66 mm, with 25 components from 20 distinct parts.

Its main chip is the ATmega328-PU, from the AVR/Arduino family. Other key parts include the MB85RS256B and MAX6951. By type, the board carries 7 capacitors, 6 diodes, 4 resistors, 3 ICs, 2 connectors and 1 crystal.

From the project

Circuit demonstrating functionality of non-volatile, highly endurant ferroelectric RAM.

Circuit demonstrating functionality of non-volatile, highly endurant ferroelectric RAM.

This PCB was designed using KiCAD version 5. Refer to fram-prototype.pdf for schematic. PCB images generated with tracespace follow.

Main components on the Fram prototype

ATmega328-PUMB85RS256BMAX6951

Fram prototype bill of materials (BOM)

25 components, 20 distinct parts.

QtyPartRefs
1
ATmega328-PU
U1
1
MB85RS256B
U2
1
MAX6951
U3
1
8MHz
Y1
1
Barrel_Jack
J1
1
AVR-ISP-6
J2
1
VXO7803-500-M
PS1
1
Rotary_Encoder_Switch
SW1
1
LED
D1
4
ACSC02-41SURKWA-F01
D2, D3, D4, D5
1
CDBHM260L-HF
D6
1
10u
C1
1
22u
C2
1
C
C3
2
100n
C4, C7
2
20p
C5, C6
1
100
R1
1
R_US
R2
1
1M
R3
1
4.7k
R4

Fram prototype design files

The KiCad project lives in the uw-madison-chem-shops/fram-prototype repository on GitHub; these links point at the commit this page was built from.

Fram prototype: common questions

What microcontroller does the Fram prototype use?

The Fram prototype is built around the ATmega328-PU, from the AVR/Arduino family.

How big is the Fram prototype PCB?

The Fram prototype measures 91.4 × 66 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fram prototype?

25 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Fram prototype design files?

From the uw-madison-chem-shops/fram-prototype repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Fram prototype design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which uw-madison-chem-shops chose for the repository.

Can I test firmware for the Fram prototype 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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