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using these files you can open KiCad and continue working on the keyboard PCB.
2022-09-08 22:31:08 +02:00
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2022-09-08 22:28:23 +02:00
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rectangular single sided PCB (copper traces and pads on top side.)
2022-09-08 22:25:56 +02:00
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2022-09-08 22:23:12 +02:00
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2022-09-08 22:21:53 +02:00
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gerber and drill files for a single sided PCB, with copper pads and traces on top.
2022-09-08 22:11:05 +02:00
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Keyboard PCB specifically for the ZX81+38.
This keyboard uses 6x6mm buttons and a keyboard overlay specifically designed for the ZX-81, with round holes for the button stems.
Its a single sided PCB with round corners designed to fit into the indentation of the keyboard in the ZX-81 enclosure.
buttons are soldered to the top side (with the copper traces), so that pressing the button does not damage the copper pads. after soldering the buttons the leads that stick though are cut off near the PCB so the bottom will be flat.
2022-09-08 22:08:56 +02:00
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2022-08-23 18:14:16 +02:00
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2022-08-23 18:12:41 +02:00
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2022-08-23 18:11:36 +02:00
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2022-08-23 17:58:42 +02:00
mahjongg2
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2022-08-23 17:57:19 +02:00
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2022-08-23 17:56:28 +02:00
mahjongg2
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2022-08-23 17:55:46 +02:00
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2022-08-23 17:54:54 +02:00
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2022-08-23 17:53:54 +02:00
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2022-08-23 17:53:26 +02:00
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2022-08-23 17:51:53 +02:00
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revision 1.9 with repaired joystick interface
2022-08-23 17:51:25 +02:00
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2022-08-23 17:48:22 +02:00
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2022-08-13 02:54:11 +02:00
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2022-08-12 15:28:29 +02:00
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2022-08-12 15:22:29 +02:00
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keeping my promise of releasing the KiCad project files.
2022-08-04 19:15:59 +02:00
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complete KiCad project files, with these you should be able to create your own ZX81+38 KiCad project (Not tried yet)
2022-08-04 19:08:14 +02:00
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2022-07-26 16:11:13 +02:00
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2022-07-26 16:09:23 +02:00
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2022-07-26 15:49:07 +02:00
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Production files for revision 1.8 with all the latest corrections, copper fill isolation of JP1 and JP9 so JP1 can be scratched through now to switch to 8K rom-space. Modified transistor footprints for easier soldering, corrected non plated hole (drill holes) placement, corrected USB connector placement, corrected logic families (now only HC logic) , corrected crystal footprint now suitable for PTH and SMT crystals (use paper isolation for PTH crystals!) clock inverter using one half of U18 to solve the no white characters in black squares problem when using slow (EE)PROMS. corrected orientation of keyboard data lines (5-pins) header.
2022-07-26 15:45:54 +02:00
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2022-07-26 15:33:04 +02:00
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ZX81+38 rev 1.8 gerber and drill files, with swapped keyboard data connector, clock inverter drill hole corrections and more.
2022-07-26 15:32:06 +02:00
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2022-07-26 15:29:53 +02:00
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updated schematic with clock inverter, and swapped keyboard data connector
2022-07-26 15:29:32 +02:00
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2022-07-26 15:26:26 +02:00
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2022-07-26 15:26:09 +02:00
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2022-07-26 15:25:56 +02:00
mahjongg2
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2022-07-26 15:25:32 +02:00
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2022-07-26 15:25:17 +02:00
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2022-07-26 15:24:06 +02:00
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Updated placement drawing file with removed logic family (all should be HC logic) and some additional jumping info.
2022-07-26 15:22:42 +02:00
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2022-07-26 15:21:06 +02:00
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2022-07-26 15:18:38 +02:00
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BOM for zx81+38 revision 1.8 with Reichelt order codes added
2022-07-26 15:16:17 +02:00
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