2 layers
Nrf bga
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12 parts14kMIT
2 layers66 × 65 mm
Akashi-10
suikan4github/Akashi-10Test board of the EL-210 calculator
- Size
- 66 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 12
- Nets
- 40
- Pads
- 84
- Tracks, vias
- 94, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Jun 2022
- Updated
- 11 Jan 2023
Overview
Akashi-10 is an open-source printed circuit board by suikan4github, from the suikan4github/Akashi-10 repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 66 × 65 mm with 12 parts on 40 nets, routed with 94 tracks and 0 vias.
Its parts include 2 connectors and 1 IC.
README
README.mdAkashi-10
Test board of the EL-210 calculator
Description
This board is developed to test the functionality of the EL-210 Calculator controller. The EL-210 was released from SHARP Corporation at 1980.
This board tests its internal 9 digits VFD and 9x3 matrix keyboard. All signals and power from internal AA*2 batteries are taken out by 40pin headers.
Pin assignment
The ping assignment of the 40pin headers are as followings :
| Pin | Symbol | Pin | Symbol |
|---|---|---|---|
| 1 | H1 | 2 | H2 |
| 3 | a | 4 | |
| 5 | D8 | 6 | R1 |
| 7 | g | 8 | R2 |
| 9 | D7 | 10 | R3 |
| 11 | f | 12 | C8 |
| 13 | D6 | 14 | C7 |
| 15 | e | 16 | C6 |
| 17 | D5 | 18 | C5 |
| 19 | D4 | 20 | C4 |
| 21 | d | 22 | C3 |
| 23 | D3 | 24 | C2 |
| 25 | dp | 26 | C1 |
| 27 | D2 | 28 | C0 |
| 29 | c | 20 | |
| 31 | D1 | 32 | |
| 33 | b | 34 | |
| 35 | D0 | 36 | |
| 37 | H2 | 38 | |
| 39 | H1 | 20 |
Where odd and even pins are signals of the VFD and the key matrix.
- H1, H2 : Heater.
- a .. f and dp : Segments ( Anode ).
- D0 .. D8 : Digits ( grid ).
- R1 .. R3 : Row 1 .. 3 of the key matrix.
- C0 .. C8 : Column 0 .. 8 of the key matrix.
Photo
This is photo of the version 1.0.0.
Parts
12| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | TestPoint | TestPoint:TestPoint_Loop_D2.60mm_Drill0.9mm_Beaded | TP1, TP2 |
| 1 | 9-ST-20 | 9-ST-20:9-ST-20 | U1 |
| 1 | Conn_02x20_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | EL-210-KEY | EL-210-KEY:EL-210-KEY | P1 |
The 5 most common of 12 parts.
Questions
How big is the Akashi-10 PCB?
It measures 66 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Akashi-10 use?
12 parts. 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 Akashi-10 KiCad files?
From the suikan4github/Akashi-10 repository on GitHub, at the commit this page was made from: the board is Akashi-10.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Akashi-10 design in my own project?
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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