Econet hub
About the Econet hub PCB
Econet hub is an open source PCB design by google, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 70.7 × 36.6 mm, with 20 components from 11 distinct parts.
By type, the board carries 6 resistors and 2 capacitors.
It belongs with the retro computing designs in this gallery.
From the project
Phillip Pearson's retro hardware projects for the Acorn Electron
A simple board that provides an Econet clock and biasing, and a bunch of Econet sockets.
I haven't tested this, but https://stardot.org.uk/forums/viewtopic.php?f=3&t=15049, and it looks like they work well.
Revision 1 had a bug with the ATTINY85 footprint; it was too narrow, so to solder the chip on, I had to turn it into a J-lead package by bending its legs underneath.
Econet hub bill of materials (BOM)
20 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | Econet | din_5_econet_pcb_mount | E0, E1, E2, E3, E4 |
| 2 | Econet | Pin_Header_Straight_1x05_Pitch2.54mm | H0, H1 |
| 5 | — | via_single | staple_single1, staple_single2, staple_single3, staple_single4, staple_single5 |
| 1 | C28323 100n | C_0805_HandSoldering | C1 |
| 1 | C28323 10u | C_0805_HandSoldering | C2 |
| 1 | C17414 10k | R_0805_HandSoldering | R1 |
| 1 | C17513 1k | R_0805_HandSoldering | R2 |
| 1 | C17630 220R | R_0805_HandSoldering | R3 |
| 1 | C17673 1k | R_0805_HandSoldering | R4 |
| 1 | C17673 56R | R_0805_HandSoldering | R5 |
| 1 | C17520 56R | R_0805_HandSoldering | R6 |
Econet hub design files
The KiCad project lives in the google/myelin-acorn-electron-hardware repository on GitHub; these links point at the commit this page was built from.
Econet hub: common questions
How big is the Econet hub PCB?
The Econet hub measures 70.7 × 36.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Econet hub?
20 components, from 11 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 Econet hub design files?
From the google/myelin-acorn-electron-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Econet hub design in my own project?
Yes, under the terms of its Apache-2.0 license, which google chose for the repository.
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