I’ve been using Redshift on my desktop for awhile now and have wanted my keyboard light to change color at night as well. I’d been using a small string of x-mas lights because they offered a nicely spread out light that wasn’t excessively bright at night but they weren’t adjustable in color or brightness. This […]Read more "A color changing desk lamp using ws2801 strip LEDs and a ch340g USB serial adapter"
To charge DieHard / Craftsman C3 lithium-ion battery packs apply 21V across the + and – terminals. (rounded end = +, opposite = -) C3 batteries come in several variations and each one has different requirements to allow charging. Most variants will need a 22K resistor between the left terminal (when looking with the […]Read more "DIY Charging a Craftsman C3 Lithium Ion battery pack"
Systemd is here. Like it or not, we’re being given a new tool and it’s time to learn how to use it. Today, we address the systemd timers feature and it’s ability to implement the functions of cron. This isn’t a beginner topic, this blog assumes you know the command line well and have at […]Read more "Systemd timers replacement for cron jobs, plus Weechat LetsEncrypt certificate renewal and distribution."
This is my own creation, it isn’t intended to be an authentic Italian-style Carbonara but more of an Italian inspired dish. Choose an interesting sausage that you can showcase in this dish. I prefer to avoid sharp flavors like apple and a cheese sausage would just get lost. Ingredients: 1 pkg. Tortellini 3 to 5 […]Read more "Tortellini Carbonara"
Clicking on NOAA’s radar images gives you weather that ranges from 5 minutes out of date to around 70 minutes out of date. Ever wonder why such a range and why they’d give us weather images that are so old? A little while back, I was working for a major retailer and had the opportunity […]Read more "Why is my weather radar image out of date?"
This is a continuation of the performance enhancements for reading the ADC on Arduino. Similar steps apply to many non Arduino/ATMega processors. That other article is here: Arduino Library Functions & Macros and introduces startSample(), sampleDone(), and getSampleResult() as a way of avoiding blocking when doing an analogRead. Here we will update the second two functions and introduce a new function: startFreeRunningADC(). […]Read more "Speeding up the ADC on an Arduino ATMega 328P"
The Hardware here is simple and cheap, it can be done with any Pi, though I used a Pi Zero. For me, it was free because I had the Pi Zero and the wire. The default pins are: Ground to Ground 3.3V power […]Read more "OpenOCD for programming nRF51822 via nothing but wires and a Raspberry Pi"