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Hi from Melbourne, Australia

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frewie
(@frewie)
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I am a retired electrical engineer, dabbling in Rasberry Pi and Pico projects. My first micro project was in Jan 1979 when I purchased a 6502 based SYM-1 microboard for US$277 then (worth US$1,141 today after inflation). Good news is it still works (see photos in subsequent posting - not allowed yet) and I might build a link to a Pico running Basic to interface it. Anyone else interested?Β 


   
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robotBuilder
(@robotbuilder)
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@frewie

Hi from another Australian πŸ™‚Β  I haven't used the Pico myself.Β  I used to program the C64 in 6502 assembler code.Β  My first computer kit was the MiniScamp from Dick Smiths.

Β 

Β 


   
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DroneBot Workshop
(@dronebot-workshop)
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Welcome to the forum!

😎

Bill

"Never trust a computer you can’t throw out a window." β€” Steve Wozniak


   
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erickendall
(@erickendall)
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Hi guys, another Aussie here as well. Emerald in the Dandenong Ranges.

This is all totally new to me. I have an engineering / toolmaking background (about to retire) and know virtually nothing about microprocessors.

My latest project brought me here. I've been getting so tired of pushing barrow loads of firewood up a hill on our property and around to the back door, so I thought I'd build a radio controlled electric skid steer yard cart. It will hold just over a cubic metre of wood, so it's a fairly robust sort of unit.

I've been researching motors and controllers along with all the other bits and pieces that I'll be needing. I can't believe how versatile these Arduinos are. I'd never heard of them 3 days ago!!!

Got a bit of a learning curve ahead of me I'm sure, but I'm finding it a really interesting field.

Β 


   
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frewie
(@frewie)
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@robotbuilder hi and thanks for the welcome. I later had a VIC20 which was fun similar to yourself.


   
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ron bentley
(@ronbentley1)
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Posted by: @frewie

I am a retired electrical engineer, dabbling in Rasberry Pi and Pico projects. My first micro project was in Jan 1979 when I purchased a 6502 based SYM-1 microboard for US$277 then (worth US$1,141 today after inflation). Good news is it still works (see photos in subsequent posting - not allowed yet) and I might build a link to a Pico running Basic to interface it. Anyone else interested?Β 

Hi frewie, and welcome to the forum.

6502, eh! Yep, I also used this processor around the same time, this being the basis of the BBC micro computer launched around then, a full 32 kb of ram!

I recall having great fun with it using its built in basic and machine coding the chip.

Looking forward to seeing future posts

Cheers

Ron B

👍

Ron Bentley
Creativity is an input to innovation and change is the output from innovation. Braden Kelley
A computer is a machine for constructing mappings from input to output. Michael Kirby
Through great input you get great output. RZA
Gauss is great but Euler rocks!!


   
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frewie
(@frewie)
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@ronbentley1 Hi Ron,

thanks for the welcome. The 6502 was quite a workhorse used in many configurations. Mine was bare bones with only 4k RAM and I didn't purchase the Basic or Assembler ROMs which were quite expensive in the late 70s.Β 

Hard to believe that the Pico or other current microcontrollers have more than 100 times the processing power, RAM and capabilities at less than 1/100th the price - price of a cup of coffee!


   
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frewie
(@frewie)
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DSC00019   Copy (Medium)
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Photos of the SYM-1 still working after 43 years!

Β 


   
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Mark Bolton
(@mark-bolton)
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Make mine a PDP - 11 and I just built a valve amplifier. It isn't complete, in that the valves are still in their little boxes. These transistors are just a passing fad. They will never amount to anything πŸ˜‰ ..Β  Lots of us Aussies here it seems...

Mirrabooka WA ...


   
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Inq
 Inq
(@inq)
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Welcome to the forum.
Β 
Posted by: @frewie
DSC00019   Copy (Medium)
DSC00025   Copy (Medium)
DSC00021   Copy (Medium)

Photos of the SYM-1 still working after 43 years!

Β 

Wow!Β  as in...Β  you're actually programming on it?Β  That's takingΒ Retro to a whole new level!

Posted by: @mark-bolton

Make mine a PDP - 11

Now, that's a name I care to forget.Β  Remembered my first engineering co-op job where they upgraded from P'11 to Vax 11/780.Β  Talk about blowing you hair back.Β  😆Β 

I cut my teeth on an Apple II doing 3D wireframe body rotation in the late '70s.Β  Memory is fuzzy, but it seemed like it took nearly a minute to render any significant model.Β  Now days... they do whole "worlds" of fully ray-traced images with reflections and shadows at better than 60 frames/second.Β  Now a $0.95 ESP-01 can run a Vax 11/780 into the ground.

3 lines of code = InqPortal = Complete IoT, App, Web Server w/ GUI Admin Client, Access Point Manager, Drag & Drop File Manager, OTA, Performance Metrics, Web Socket Comms, Easy App API, All running on ESP8266...
Even usable on ESP-01S - Quickest Start Guide


   
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frogandtoad
(@frogandtoad)
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@frewie

Posted by: @frewie

I am a retired electrical engineer, dabbling in Rasberry Pi and Pico projects. My first micro project was in Jan 1979 when I purchased a 6502 based SYM-1 microboard for US$277 then (worth US$1,141 today after inflation). Good news is it still works (see photos in subsequent posting - not allowed yet) and I might build a link to a Pico running Basic to interface it. Anyone else interested?Β 

Welcome fellow Danistanian! πŸ˜‰


   
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Mark Bolton
(@mark-bolton)
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@inq I grew to love the PDP - 11 . It is like flying a Tiger Moth.


   
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frewie
(@frewie)
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@inq Hi,

yes there is something satisfying working with the basic systems from long ago, even if we use the modern tools and take them for granted.


   
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frewie
(@frewie)
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@frogandtoad thanks for the welcome.


   
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Mark Bolton
(@mark-bolton)
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She runs a 3 bit bus and "core memory" . Still the fastest boot of any machine I ever worked with.

just for fun we used to take her off line during the midnight shift and run little programs on her. My favorite was a Logic Bomb that incremented to each memory location and loaded zero ... she was a little honey. Most of all I loved her power supply ..she was such a tank. Like the Tiger Moth - if you could get her off the ground and back again in one piece, call it a major accomplishment. OH rhapsodise about the PDP - 11. And will until some one pours a bucket of iced water on my head.

Β 

πŸ˜‰

Β 

M


   
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