Re: [M100] Joystick for the M100

I can't quote the issue and page but I do recall there being an article in Portable 100 magazine about connecting a joystick to the Model T computers. Virus-free. www.avg.com

Re: [M100] Joystick for the M100

On 5/1/21 6:24 am, Jim Anderson wrote: As I recall, the way it worked was that the five switches (directional switches and fire) were wired to the first five output bits, and the common return from all five switches was wired to BUSY. To poll the joystick you'd cycle through outputting ASCII

Re: [M100] life

On Mon, Jan 4, 2021 at 3:29 PM Eric LK wrote: > John R. Hogerhuis wrote: > > Also works on https://bitchin100.com/CloudT > > Cool :o) > > > I tried "Add URL" to skip a step downloading it, but it doesn't work > > because of CORS setting on lefauve.org > > Thanks for the feedback John. > I just

Re: [M100] M100 Digest, Vol 121, Issue 4

On 1/4/2021 3:47 PM, m100-requ...@lists.bitchin100.com wrote: Date: Sun, 3 Jan 2021 21:34:13 -0500 From: Scott McDonnell To:"m...@bitchin100.com" Subject: Re: [M100] Retrobrighting. To do or not to do? Message-ID: Content-Type: text/plain; charset="utf-8" Yeah, the saran wrap has

Re: [M100] Joystick for the M100

Brilliant! A unique way around every problem. Jeff Birt -Original Message- From: M100 On Behalf Of Jim Anderson Sent: Monday, January 4, 2021 1:55 PM To: m...@bitchin100.com Subject: Re: [M100] Joystick for the M100 > -Original Message- > For input, there are only 2 signals,

Re: [M100] Joystick for the M100

> -Original Message- > For input, there are only 2 signals, BUSY and BUSY_N.  Each of these can > be read independenty. As I recall, the way it worked was that the five switches (directional switches and fire) were wired to the first five output bits, and the common return from all five

Re: [M100] Joystick for the M100

Another way to go about it is like the NES joypad. Use a shift register to shift in the buttons. You would need a clock, a CS, and Digital input. So, two outputs and one input. And of course a driver. Scott M. From: Tom Wilson Sent: Monday, January 4, 2021 2:45 PM To: M100 Mailing List

Re: [M100] Joystick for the M100

As Steve mentioned, the M100 parallel port is non-standard. It has output buffers with series resistors on all of the data output pins. This means they cannot be used for either input or for any meanigful power harvesting. For input, there are only 2 signals, BUSY and BUSY_N. Each of these

Re: [M100] Joystick for the M100

The Centronics standard has 5 dedicated input status lines. And you only need 5 signal pins for an Atari joystick. Is it possible to read the pins directly? If so, then it should be possible. Tom Wilson wilso...@gmail.com (619)940-6311 K6ABZ On Mon, Jan 4, 2021 at 11:42 AM Stephen Adolph

Re: [M100] Joystick for the M100

m100 parallel port is output only except for the printer status lines. GPO yes but not GPI... On Mon, Jan 4, 2021 at 2:39 PM Tom Wilson wrote: > > Seems to me that somebody had a scheme a while back where the joystick > interfaced with the parallel port and status was polled that way (this >

Re: [M100] Joystick for the M100

> Seems to me that somebody had a scheme a while back where the joystick interfaced with the parallel port and status was polled that way (this avoids having to build a custom interface). Yeah, we used to use the parallel port for a lot of things, back in the DOS days; it doesn't take much to

Re: [M100] Joystick for the M100

> -Original Message- > > The problem with an Atari style joystick is that it uses a common > > ground. This means all of the keys to operate a game would need > > His device was smart and interfaced with the system bus and was > accessed via an IO port. Seems to me that somebody had a

Re: [M100] Joystick for the M100

On Mon, Jan 4, 2021 at 2:21 PM Tom Wilson wrote: > > The problem with an Atari style joystick is that it uses a common ground. > This means all of the keys to operate a game would need to be on the same row > or column. I don't know the matrix layout of the Model T's keyboard, so it > might

Re: [M100] Joystick for the M100

The problem with an Atari style joystick is that it uses a common ground. This means all of the keys to operate a game would need to be on the same row or column. I don't know the matrix layout of the Model T's keyboard, so it might not be possible to actually wire this to any rational control

Re: [M100] Joystick for the M100

List member Peter Noeth showed off an Atari joystick interface for M100 on the TRS-80 Trash Talk live show over the weekend. Hopefully he'll be ready to share more details soon. -Josh On Mon, Jan 4, 2021 at 2:12 PM Jeffrey Birt wrote: > > I would think this could be done with an externally

Re: [M100] Joystick for the M100

I would think this could be done with an externally connected device and a small ‘driver’. Of course, I have never tried to do anything like this on an M100, so I have no real idea what I’m talking about. Just thinking of a driver that gets ‘hooked’ into the OS that can insert keystrokes into

[M100] Joystick for the M100

If I ever find one of these for a decent price again, I am thinking it might be neat to hack one of these on to the M100. Probably need to tap into the keyboard matrix. Anyone else do something similar to get a more intuitive use of the arrow keys?

Re: [M100] Retrobrighting. To do or not to do?

On Jan 4, 2021, at 9:17 AM, Scott McDonnell wrote: > > It doesn’t seem like you can really overdo it. I use an immersion technique but I did have one item that got “overdone.” I was doing a batch of keycaps on the stovetop and foolishly left an Enter key with its hinge bar in as it was a bit

Re: [M100] Retrobrighting. To do or not to do?

This retrobrighting session on this M100 took two days, BTW. It was probably really done in a day but I thought the M100 was naturally much whiter than it actually is so I left it for another day. It doesn’t seem like you can really overdo it. I have done retrobrighting on some really yellowed

Re: [M100] Retrobrighting. To do or not to do?

Hello again — cool, thanks! And a very good tip about ensuring the lamps fit in whatever rig I setup, that’s a good consideration for sure. Multitasking got the better of me as I was replying… the ones I was eyeing are 60W (not 50W, sorry) but should work. And yep, I’m in Michigan where it’s

Re: [M100] Retrobrighting. To do or not to do?

Those are not the exact models that I bought. I just went back through my Amazon order history and what I bought was actually two 10W lamps. There was no concern about power. I just bought whatever was the cheapest. 50W is fine and would likely work much faster. I do my retrobrighting in the

Re: [M100] Retrobrighting. To do or not to do?

Greetings Scott — thanks for sharing, this is really helpful! Just curious about the 30W choice for the UV setup; I see they offer a 50W pair for $10 more and was wondering if the extra power would be too much? Perhaps there’s a risk of overheating and that’s why 30W is recommended? (Put

Re: [M100] Star Blaze 100

Yeah, I recall the keyboard scan loop causing me some headaches when I wrote it (that was like 2004 I believe). The Model T has a key-repeat timing that is based on the timing of the background "tick". Trying to get this correct with different "emulated time" where the emulation speed was

Re: [M100] Retrobrighting. To do or not to do?

My UV set up is something like these: https://www.amazon.com/Onforu-Waterproof-Blacklight-Lighting-Fluorescent/dp/B07GGV5B7R Two of those zip=tied to the bottom of an inverted milk crate. I place my part to retrobright on a piece of wood and then set this lamp assembly over it. The UV light is

Re: [M100] Paladin MC-1 ROM

>>Making a video for youtube about this machine... an interesting idea. I'm >>not sure I could hold a candle to Hey Birt! or some of our other youtubers on >>here, but it's something to think about. :) >>jim Go for it! It is all about sharing something you are passionate about. Like any

Re: [M100] Retrobrighting. To do or not to do?

Both heat and UV add energy which will speed up a chemical reaction. The UV could have other effects as well. IMHO, heat is probably the easiest to control even if it might take longer. Jeff Birt From: M100 On Behalf Of Scott McDonnell Sent: Sunday, January 3, 2021 8:34 PM To: