Tuesday, October 28, 2014
Sunday, October 19, 2014
Temp sensor
Hey Q. Here's an easy one for the Nerdlings...
An embedded processor, a ds1821, and a display.
I have spare parts if they are interested..
Wednesday, October 15, 2014
Arduino's
switched out recently from the Arduino Uno to the Nano (v3.0)
easier to fit into things and if I build an actual custom PCB then I can mount the arduino directly. and since I know someone with a CNC mill for just such PCB creation, I should be set...
what is that other thing the orange wire is plugged into? its a DS1821 temperature sensor. pretty cool little device.
An Extremely Terrible Misfortune
So,
A terrible misfortune happened (to someone else) and the single copy of their important data was on a flash drive. It was plugged into the computer when said laptop decided to challenge the law of gravity.
The flash drive lost..
and so the soldering iron came out and I managed to recover the data...
and the moral of the story is... Backup your data... a single copy on a flash drive isn't safe.
Hmm... I need an oscillator
and I have an arduino and an extra AD9850 setting around...
so the theory seems to work just fine. now we need to control and report... so some user interface work, a rotary encoder, a switch, a 10k trimmer and a box later and...
It's Dead Jim.... no, It's alive
My poor radio needed a back-end Amp replacement. seems a couple of the transistors had died..
so, after some work, it's alive again..
Build a Tape Measure
So, I have an Arduino and a spare ultrasonic and some displays... what to do. Oh... a tape measure.
Build an Antenna Analyzer
So I was looking for a way to get some antenna's (or is it antennae?) up on my roof for my radio.
In order to get them built, I need an analyzer. Being a good engineer, don't invent things that already exist and I found Luca's kit.
The workspace
the nearly finished product.
and it's alive!!
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