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Doing Arduino Down And Dirty

🕑 Added 2021-03-22 22:38:27 +0000 UTC

Comments

Frank

Two different YT links. Text link is not working, the embed is working.

God of Ramblers

I had a board that plugged into the back of my Acorn Atom with six hex-decoding dot led displays. I soldered in he PCB connector at an angle so it was upright (The atom had a sloped main board for keyboard rake) and housed it all in a heavily modified compact cassette case (As was the case with almost everything I made then!)

Mike Hughes

The Chinese Knock off copy shields are really cheap and mostly of pretty good quality. I use them as I can't afford the Genuine Arduino ones. It might save you some fiddly work.

Jessica McIntosh

I think it’s cute. And it gets the job done.

14 bit for alphanumeric displays?

Norm Nelson

Works fine for me if you click on the thumbnail, but not the youtu.be link. :)

Same here..

Video isn't available anymore? YouTube says it's private.

veritanuda

I don't call them shield. I call them hats. Great video though. Have to hack else you will crack.

Leigh

I love Arduino. Got some remote temperature sensors/humidity sensors running at 4MHz with a modified bootloader on custom PCB to allow being powered from 2 AA batteries and 3 years later they are still working, sending readings back every minute and sleeping in between. Nothing you can't do with an Atmel and Arduino.

BobC

Actually, were I to get another one, I'd get this one (https://www.ebay.com/itm/221828570443?chn=ps&mkevt=1&mkcid=28) with +/- 30V signal voltage withstand capability.

Jason Olshefsky

I got started in modern microcontrollers around 2006 (which was when Arduino just started getting traction) and SparkFun was selling PIC18F252 chips which I thought were pretty neat so I got started in PIC. At first I did everything in assembly but switched to a commercial C compiler (from CCS) that plugged into the free MPLAB software, and now having migrated to Linux, I'm bashing through learning SDCC. Every once in a while I start a new project and think I should give Arduino and Atmel a try but it's a whole new learning curve and I generally just go back to PIC. One thing I think is "advantage PIC" on the hardware side is that the digital pins are current-limited to source or sink 20mA which is a really convenient value. (Otherwise I don't think there's a substantial hardware difference for one side or the other.) I wouldn't recommending switching on that alone. Just a little food for thought.

Gary Bleads

I always thought the Arduino Digital pins could each source and sink 40mA, providing you don't exceed 200mA total. - enough to drive lots of LEDs and still leave plenty for other circuity. The 20K pullup is to allow the pin to be used as an input without needing an exteral pullup resistor.

David Peaker

I also don't like the term shield, or that Arduino programs are called sketches, but I do anticipate some cool future projects.

BobC

Why not use a cheap 32-channel USB logic analyzer and a phone (with OTG cable), RasPi or PC? I use an older version of this (https://www.ebay.com/itm/154060818810?chn=ps&mkevt=1&mkcid=28) which does plenty well for the money. I usually use it live, though I also save the samples for timing analysis and glitch detection.