…the thief said “Let there be light. Behold a single candle lit by the joules of a dead cell.”
There is something about LEDs and the joule thief circuit that keeps me coming back. This time around I went for something festive for the December holiday season along with a SMD transformer, no longer will I have to hand wind toroidal transformers.
Read More Single LED Joule Thief Candle
Since June of 2016 I have been logging atmospheric pressure using a Raspberry Pi B+ and STEVAL-MKI165V1 evaluation module which features the LPS25HB atmospheric pressure sensor. The Raspberry Pi uses a small Python program I wrote to log the pressure data and time to the system SD card and also plot the past 24 hours […]
Read More Atmospheric Pressure Data Logging and DST
I believe it is inevitable that most newcomers to electronics will at one point or another build a Joule Thief circuit. To me it is the hello world of circuits and was one of the first circuits I prototyped on a breadboard when I first started experimenting with electronics. This multi-LED PCB is a callback to those days, something I wanted to do the first time I laid out a hand wound transformer, transistor, and LED on a breadboard.
Read More Multi-LED Joule Thief
An ATTINY adapter to make programing with the AVR Dragon simple and quick.
Read More AVR Dragon ATTINY Adapter
A wood cased mechanical keyboard.
Read More A board of Keys
A few weeks ago I received an email from LT that was showcasing the LTC2946, a power monitoring IC that communicates using I2C. I was intrigued and ordered a couple, part number LTC2946CMS#PBF. This is the MSOP-16 package and I would need a breakout board so that I could play around with this chip on a breadboard and explore all of its functions. I looked at my normal sources for electronic goodies; Adafruit and Sparkfun had MSOP break out boards but they were all low pin count. I was able to find another source for a MSOP-16 breakout board but at ~$7 a piece plus shipping I knew I could have my own made much cheaper. On to KICAD.
Read More Breakout the MSOP16