ZX81plus38 simple to build ZX-81 clone - Revision history

Mahjongg at 16:31, 29 November 2023

2023-11-29T16:31:22Z

← Older revision		Revision as of 16:31, 29 November 2023
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	{{Project		{{Project
	\|Name=ZX81plus38		\|Name=ZX81plus38
	\|Picture=~~Keyboard on~~ top ~~of case~~.JPG\|px500		\|Picture=PCB Preview ZX81+38 rev 1,10 top now with PSG expansion board.JPG\|px500
	\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.		\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.
	\|Status=In progress		\|Status=In progress

Mahjongg at 16:28, 29 November 2023

2023-11-29T16:28:38Z

← Older revision		Revision as of 16:28, 29 November 2023
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	{{Project		{{Project
	\|Name=ZX81plus38		\|Name=ZX81plus38
	\|Picture=~~File:~~Keyboard on top of case.JPG\|px500		\|Picture=Keyboard on top of case.JPG\|px500
	\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.		\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.
	\|Status=In progress		\|Status=In progress

Mahjongg at 16:28, 29 November 2023

2023-11-29T16:28:07Z

← Older revision		Revision as of 16:28, 29 November 2023
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	{{Project		{{Project
	\|Name=ZX81plus38		\|Name=ZX81plus38
	\|Picture=~~PCB Preview ZX81+38 rev 1,10~~ top ~~now with PSG expansion board~~.~~png~~\|px500		\|Picture=File:Keyboard on top of case.JPG\|px500
	\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.		\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.
	\|Status=In progress		\|Status=In progress

Mahjongg: /* Got a free ZON-80 clone board for regular ZX-81's from a fan */

2023-11-29T16:22:55Z

Got a free ZON-80 clone board for regular ZX-81's from a fan

← Older revision		Revision as of 16:22, 29 November 2023
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	https://github.com/mahjongg2/Mechanical-keyboard-for-ZX81plus38		https://github.com/mahjongg2/Mechanical-keyboard-for-ZX81plus38

	== Got a free ZON-80 clone board for regular ZX-81's from a fan ==		== Got a free ZON-80 clone board for regular ZX-81's from a fan, it works on my ZX81+38 too ==

	For my ZX81+35 (a previous ZX-81 clone I designed using surface mount components) I had also designed a programmable sound generator, that was software compatible with the contemporary ZON-80 PSG board. You can find it on my GitHub page as "ZON-compatible-PSG-with-SD-interface-for-ZX81plus35-ZX81" .		For my ZX81+35 (a previous ZX-81 clone I designed using surface mount components) I had also designed a programmable sound generator, that was software compatible with the contemporary ZON-80 PSG board. You can find it on my GitHub page as "ZON-compatible-PSG-with-SD-interface-for-ZX81plus35-ZX81" .

Mahjongg: /* = Uploaded the mechanical keyboard PCB to Github */

2023-11-29T16:22:12Z

= Uploaded the mechanical keyboard PCB to Github

← Older revision		Revision as of 16:22, 29 November 2023
Line 747:		Line 747:
	a component placement drawing will be placed soon.		a component placement drawing will be placed soon.

	== Uploaded the mechanical keyboard PCB to Github =		== Uploaded the mechanical keyboard PCB to Github ==

	Even though I have not yet built one myself I have enough confidence it will work that I decoded no longer to wait, and to release it on GitHub, here:		Even though I have not yet built one myself I have enough confidence it will work that I decoded no longer to wait, and to release it on GitHub, here:

Mahjongg: Uploaded the mechanical keyboard PCB to Github

2023-11-29T16:21:46Z

Uploaded the mechanical keyboard PCB to Github

← Older revision		Revision as of 16:21, 29 November 2023
Line 747:		Line 747:
	a component placement drawing will be placed soon.		a component placement drawing will be placed soon.

	== Uploaded the mechanical keyboard PCB to ~~Githum~~ =		== Uploaded the mechanical keyboard PCB to Github =

	Even though I have not yet built one myself I have enough confidence it will work that I decoded no longer to wait, and to release it on GitHub, here:		Even though I have not yet built one myself I have enough confidence it will work that I decoded no longer to wait, and to release it on GitHub, here:

Mahjongg: /* TS1000plus41 is finished */

2023-11-29T16:21:07Z

TS1000plus41 is finished

← Older revision		Revision as of 16:21, 29 November 2023
Line 746:		Line 746:
	And uploaded to my github page, including the full set of KiCAD files, the schematic, a BOM and obviously the production files, the gerber and drill files in a .ZIP file.		And uploaded to my github page, including the full set of KiCAD files, the schematic, a BOM and obviously the production files, the gerber and drill files in a .ZIP file.
	a component placement drawing will be placed soon.		a component placement drawing will be placed soon.

			== Uploaded the mechanical keyboard PCB to Githum =

			Even though I have not yet built one myself I have enough confidence it will work that I decoded no longer to wait, and to release it on GitHub, here:
			https://github.com/mahjongg2/Mechanical-keyboard-for-ZX81plus38

	== Got a free ZON-80 clone board for regular ZX-81's from a fan ==		== Got a free ZON-80 clone board for regular ZX-81's from a fan ==

Mahjongg: /* Got a free ZON-80 clone board for regular ZX-81's from a fan */

2023-11-29T16:15:05Z

Got a free ZON-80 clone board for regular ZX-81's from a fan

← Older revision		Revision as of 16:15, 29 November 2023
Line 787:		Line 787:
	[[File:PCB Preview ZX81+38 rev 1,10 top now with PSG expansion board.JPG\|1000px]]		[[File:PCB Preview ZX81+38 rev 1,10 top now with PSG expansion board.JPG\|1000px]]

	I changed the project status back to ~~ongoing~~, and will continue reporting about this expansion board.		I changed the project status back to in-progress, and will continue reporting about this expansion board.

Mahjongg: /* Got a free ZON-80 clone board for regular ZX-81's from a fan */

2023-11-29T16:13:36Z

Got a free ZON-80 clone board for regular ZX-81's from a fan

← Older revision		Revision as of 16:13, 29 November 2023
Line 749:		Line 749:
	== Got a free ZON-80 clone board for regular ZX-81's from a fan ==		== Got a free ZON-80 clone board for regular ZX-81's from a fan ==

	For my ZX81+35 (a previous ZX-81 clone I designed using surface mount components) I had also designed a programmable sound generator, that was software compatible with the contemporary ZON-80 PSG board. You can find it on my GitHub page as "ON-compatible-PSG-with-SD-interface-for-ZX81plus35-ZX81" .		For my ZX81+35 (a previous ZX-81 clone I designed using surface mount components) I had also designed a programmable sound generator, that was software compatible with the contemporary ZON-80 PSG board. You can find it on my GitHub page as "ZON-compatible-PSG-with-SD-interface-for-ZX81plus35-ZX81" .
	A certain Thomas Schilling built it, and found out how to get the biting SD-Card interface I had designed using the signal GPIO port of the AY-3-8912 PSG working. I had given up on getting it to work when I found out that the GPIO could not be programmed to set individual bits of the 8-bit GPIO port to inputs our outputs individually, but only as all bit as output, or all bits as input.		A certain Thomas Schilling built it, and found out how to get the biting SD-Card interface I had designed using the signal GPIO port of the AY-3-8912 PSG working. I had given up on getting it to work when I found out that the GPIO could not be programmed to set individual bits of the 8-bit GPIO port to inputs our outputs individually, but only as all bit as output, or all bits as input.
	I wrote about this project here±: https://revspace.nl/Zon_ZX-81_Programmable_Sound_Generator_expansion_for_ZX81PLUS35_with_working_SD-Card		I wrote about this project here±: https://revspace.nl/Zon_ZX-81_Programmable_Sound_Generator_expansion_for_ZX81PLUS35_with_working_SD-Card
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	Obviously I'm going to create my own version, read this spot		Obviously I'm going to create my own version, read this spot

			oh, and here is a picture of the zx81+38 board that has the ZON-X80 PSG board for original ZX-81 and ZX81+38.

			[[File:PCB Preview ZX81+38 rev 1,10 top now with PSG expansion board.JPG\|1000px]]

			I changed the project status back to ongoing, and will continue reporting about this expansion board.

Mahjongg at 16:05, 29 November 2023

2023-11-29T16:05:12Z

← Older revision		Revision as of 16:05, 29 November 2023
Line 1:		Line 1:
	{{Project		{{Project
	\|Name=ZX81plus38		\|Name=ZX81plus38
	\|Picture=PCB Preview ZX81+38 rev 1,9 top.png\|px500		\|Picture=PCB Preview ZX81+38 rev 1,10 top now with PSG expansion board.png\|px500
	\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.		\|Omschrijving=Most people I showed my ZX-81 clone (ZX81+35) said they liked it, but with such a tiny board and with so many "difficult" surface mount components, they doubted whether they would be able to build this kit, so I restarted my effort, to try to build a 100% compatible ZX-81 clone that anybody could build, but now with commonly available pin-through-hole parts.
	\|Status=		\|Status=In progress
	\|Contact=mahjongg		\|Contact=mahjongg
	}}		}}