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@cat This is SIM900A, I use the 800L version, so much smaller PCB, almost a size of a chip. btw. these gsm chips are working nicely :)

4K of ram is all you need.

Getting really coocoo for CoCo up in here

RT @WiFiSheep
A few photos from last Sat's @LpoolMakeFest event of our #TinyBASIC Computers display featuring @Sapphirewolf16 on stand!
The #PCBs were made for us by @PCBGOGOofficial
The colour system uses the 7" #LCD #wimaxit display by @Andycinegear as reviewed on our @YouTube channel.

Beautiful video about an old "PIF" Soviet synthesizer for kids. I love the research that David Hilowitz went through.

youtube.com/watch?v=sStI42iwdI

#synth #USSR #electronicmusic

@ozretrocomp There is no free time left during the day to publish videos, there are so many retro channels, so overlapping is unavoidable :)

position: -0.3928023668193228 + -0.5895394220219041i
pixel width: 9.327349989067007e-06

@frankbutterbrodt @bitartbot
10 print chr$(147)
20 p=0
100 for y=1 to 25
110 for x=1 to 40
120 a = (x + x*y):f=a-int(a/9)*9
220 poke 1024+p,160
230 poke 55296+p,f
240 p=p+1
250 next x
260 next y
300 goto 300

Some freshly baked art on Commodore 64

inspired by: @bitartbot

REM loop x and y
120 a = (x + x*y):f=a-int(a/9)*9
REM poke f as color

When this calculator released over 50 years ago, it was costly enough that you could lease it by the day... let's take a look at it!

https://youtu.be/Sq_GFKpPhnY

Today on LGR is the Dictaphone 1680, the smallest portable electronic calculator with a built-in display in 1971. https://twitter.com/lazygamereviews/status/1540460164880416773/photo/1
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