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A museum of all things computing - mini, micro, mainframe. I've created a forum to host discussions on all things retrocomputing. Over 128 signups already! See https://retrocomputingforum.com/ - please signup, and start posting! There's also an RSS feed...
Arduino Uno is an open-source microcontroller board based on the ATmega328P microcontroller and developed by Arduino.cc. It is the first board designed by the Arduino.cc team. The board is equipped with sets of digital and analog input/output (I/O) pins...
Introduction of Service Robot Fundamentals of Service Robot As a kind of semi-autonomous or fully self-help robot, service robots are able to perform useful service work for human beings, such as carrying, cleaning, and rescue. As service robots...
I am fascinated by the PiDP-8 and the follow-on PiDP-11 computers.Reading listGNU radio 1GNU radio 2avr makefileAnother simple formulabut I could not copy it to a comment.
I have more than 400 stars and have purchased hundreds and hundreds of items on eBay.I have had some occasional troubles and lately, more than before.But even though the last story is worth a laugh (at my expense but only some tens of USD and at least...
18 09 2020 400 Nigel We are using list display (form display) function to create an event log application 1. Software settings: As the picture shows, we have split the log into 3 part: Date/time, AM/PM, Log a. The variable memory...
Most clocks use sound to wake you up. This clock is no exception. A little "DFPlayer Mini" module does all of that, also MP3 decoding. It even includes a speaker driver. Yue Xin YX5200-24SS module! Check for short circuit between pin 3 and...
This isn't an original idea - I have found similar notions dating back to at least 1952! http://ed-thelen.org/comp-hist/SEAC&DYSEAC-5-150.pdf#page=11 Anyway, the idea is to make a DRAM memory cell with just a capacitor and two diodes. I played with one...
Slow Sundays. As usual I was awoken by the Magpies, who have successfully raised a screeching and slightly demented but otherwise identical copy of themselves, but in another tree after abandoning the one outside my bedroom window. They didnt like the...
Summary Along with the rapid improvement of China's economic level, elevators have long come into people's lives and become a basic tool to be used every day. This article provides a set of elevator display control solutions based on the STONE STVC070WT-01 screen,...
I recent acquired some Audio Voltmeters that we're going to be throw out. One was working and one was going nuts, so I had a tinker prior to attempting to repair. I tried looking for some user manuals, but got no where without signing my life away on...
Principles of Linear Stepper Motor A linear motor is a transmission device that can directly convert electrical energy into linear motion mechanical energy without any intermediate conversion mechanism. It can be regarded as a rotating electrical...
The engine in my boat is a Stuart Swan, designed in 1906. It has 2-1/4 in. bore, 2 in. stroke and is a twin cylinder double acting engine. I built it from a kit in the 1980s. I've wanted to upgrade to something a bit more modern for 30 years but when...
Intro Recently I wanted to gain some experience with pneumatics. I came up with a project idea that involves three pneumatics cylinders. Then I began to wonder if these lovely quiet portable compressors with 6l air tanks will be sufficient for driving...
Programming 2764 EPROM with a Mega2560, SD card reader and 5-12V Buck converter If you have ever wondered what it would be like to have a real retro -computer-nerd experience, then maybe programming EPROMs will fit the bill for you. Since the late 60's...