| V4 Mini-ITX Expansion Board - Specs, Registration | page 1 2 3 4 5
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Kenji Irie
Posts 86
08 Sep 2021 06:50
| And a major milestone has been achieved: The PCB and components for the first prototypes have been ordered. Progress status (will be updated live as progress is made):
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- Design concept [COMPLETED]
- Testing of serial, midi, and analogue audio [COMPELTED]
- Product specification (v1) [COMPLETED]
- Schematic design [COMPLETED]
- Mechanical layout and design [COMPLETED]
- [UPDATED] Production of first PCB prototypes [UNDER WAY]
- Testing and revision of first PCB prototypes [NOT STARTED]
- Programming of microcontroller [NOT STARTED]
- Finalise Product specification (V2)[NOT STARTED]
- Final revision and testing [NOT STARTED]
- Production of 100x boards, documentation [NOT STARTED]
- QA, packaging, shipping [NOT STARTED]
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Adam A
Posts 130
08 Sep 2021 07:55
| That's faster than what I expected. Thanks for the update. Cant wait to receive mine
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Tim Noyce
Posts 156
08 Sep 2021 11:48
| Sweet!
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Paolo Palmieri
Posts 7
10 Sep 2021 19:21
| Great job :)
Pls share some more renders without the V4, thanks!
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Kenji Irie
Posts 86
11 Sep 2021 19:59
| Paolo Palmieri wrote:
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Great job :)
Pls share some more renders without the V4, thanks!
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I only this image of the bare PCB at the moment. Most of the connectors don't have 3D models. But here is is :) 
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Bamdad Khan
Posts 6
12 Sep 2021 17:41
| i know this is not planned currently and is only a dream of mine, but do you think going all the way and producing a 10-12" V4SA laptop extension would be possible down the line? i'd be willing to pay up to 5-700$ for it, and would definitely back a kickstarter..
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Kenji Irie
Posts 86
13 Sep 2021 02:42
| I would never say never. At this stage, it's not planned or on the horizon, for me at least, as producing a new case alone (for example) would take many 10s of thousands of Euro of investment. I would like to try to break even with these expansion boards first ;)
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Ben W
Posts 33
14 Sep 2021 11:04
| This looks really fantastic Kenji.
All the very best for this project.
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Bamdad Khan
Posts 6
14 Sep 2021 14:22
| i completely understand where you're coming from. i just had to ask. :) although they're not for me, wishing you loads of success with the expansion boards. people like you are who 'make amiga great again' (sorry for the pun)..
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Richard Statham
Posts 50
21 Sep 2021 21:14
| Will it have extra ide port for people that cant solder the one they stupid left of the v4 board ?
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Chris H
Posts 65
22 Sep 2021 09:14
| Great news. Thanks.
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Kenji Irie
Posts 86
23 Sep 2021 03:53
| There is no modification to the V4. The 5V and 12v lines for powering accessories are for your use, so unless you have modified the V4 then it will be for IDE devices shared on the existing IDE bus.
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Kenji Irie
Posts 86
23 Sep 2021 03:54
| Look what arrived... 
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Jakub H.
Posts 39
23 Sep 2021 10:27
| wow, nice ! keep it up :)
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NoXLar - DemoSceneLover
Posts 63
24 Sep 2021 05:24
| looks great. funny that triangle warning to the right while holding it:) good luck with project
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Sean Sk
Posts 488
26 Sep 2021 06:35
| Nice little teaser!! :D
Good work mate!
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Kenji Irie
Posts 86
26 Sep 2021 11:32
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Further to the teaser above, here is the progress update. It may be a week or two before the next update.
Progress status summary 26/09/2021 (will be updated live as progress is made):
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- Design concept [COMPLETED]
- Testing of serial, midi, and analogue audio concepts[COMPELTED]
- Product specification (v1) [COMPLETED]
- Schematic design [COMPLETED]
- Mechanical layout and design [COMPLETED]
- Production of first PCB prototypes [COMPLETED]
- Testing and revision of first PCB prototypes [IN PROGRESS]
- Programming of microcontroller [IN PROGRESS]
- Finalise Product specification (V2)[NOT STARTED]
- Produce second prototype boards, and test [NOT STARTED]
- Final revision and testing [NOT STARTED]
- Production of 100x boards, documentation [NOT STARTED]
- QA, packaging, shipping [NOT STARTED]
Specifics testing of the first prototypes:
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- [COMPLETED] 16-bit HIGH-QUALITY analogue audio output, with ultralow-noise LDO regulator. 112 dB SNR, and -93 dB THD. Playback both PAULA AND ARNE audio at high quality!
- [NOT YET STARTED] Buffered serial UART in/out suitable for both 3.3 OR 5V FTDI cable (serial.device)
- [NOT YET STARTED] RS232 in/out (limited to RX/TX lines) (serial.device)
- [NOT YET STARTED] MIDI in/out (serial.device; using beat-buddy format connector due to space constraints)
- [COMPLETED] Mini-ITX form factor, for install into any Mini-ITX compatible case
- [IN PROGRESS] Smart power/reset for integration with standard ITX front-panel case buttons and LEDs (power LED, or Power LED+HDD LEDs)
- [NOT TESTED YET] Pass-through of analogue audio out on rear of PC to HDAUDIO header for cases with 3.5 mm jacks*
- [ALMOST COMPLETED] 12V input from standard barrel jack supply (external), standard Molex connector (internal), OR ATX 24-pin header (this part not tested yet)
- [COMPLETED] Provision of SAFE +5 power supply terminals (screw) for powering other components like HDDs and CD-ROMs for the V4 (12V pass-through from primary power supply)
- [IN PROGRESS] Internal USB 2.0 (completed) AND USB 3.0 (not tested yet) internal headers for connecting the V4 mouse port to an ITX-case USB port**
- [COMPLETED] Exposure of 9-pin Amiga keyboard/mouse ports to the rear ITX I/O panel
- [COMPLETED] Internal mounting of USB blaster with USB mini socket on the rear ITX panel, for easy FPGA programming
- [IN PROGRESS] Exposure of 2nd USB gamepad via internal USB 3.0 AND 2.0 header to an ITX-case USB port** (compatible with both V4 and V4+, providing 2nd gamepad for the original V4)
- [IN PROGRESS] Internal programming header for on-board microprocessor (functional, not completed yet)
- [NOT TESTED YET] 3-pin fan header for supply of 12V to standard case fan
- [FUNCTIONAL] POTENTIAL NEW FEATURE 1 - TBC. Watch this space!
- [NOT YET STARTED] POTENTIAL FEATURE 2 - TBC. Watch this space!
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Robert Pulfer-Ridings
Posts 59
27 Sep 2021 03:12
| Getting a bit excited now Kenji, have my pingers saved up and waiting for the purchase day :D
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Matthias Gull
Posts 19
27 Sep 2021 16:22
| Nice work!
Can't wait to buy one! :-)
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The team will post updates and news about our project here