Solar Production November 2015
Mostly a placeholder to keep some graphs as the Enphase site doesn’t keep them long.
Category: Tech
Lithium Charging Curve
This is the first charge of the new battery pack using the cells from the Chevy Volt. Generally it charged perfectly except that it never reached the Vhi cutoff voltage… Read more »
Raspberry Pi Stepper Motor
In preparation for the pi class I wanted to get a motor running and found this excellent tutorial: http://www.raspberrypi-spy.co.uk/2012/07/stepper-motor-control-in-python/ It works great once I realized the motor has a 64:1… Read more »
About home.newts.org
home.newts.org is a tiny Raspberry Pi Linux computer. Currently it runs pyweather to connect my Davis Vantage Pro2 weather station to wunderground.com. It also runs my tf mud client in… Read more »
Why I bought a Chevy Volt
Because I wanted a practical electric car. That is the answer to the question of why. I did all the calculations and at the end of the day the additional… Read more »
Volt vs Prius
I traded in my2004 Prius for a 2012 Chevy Volt. Here are some comparisons and differences between between them. I am updating the article as I go along. At the… Read more »
RFID @catdoor for Twitter, Phase 1
Simple concept, put an RFID chip on your cat and a reader by the door. Tweet whenever the cat uses the door.The reader is a APSX 15.56MHZ RW-210 reader. The RFID is… Read more »
Machining Mars Etek Backplate with Python
To get the slots and the screws just right I used a Sherline tabletop CNC milling machine to cut the screw slots and openings. Only a little rework and it… Read more »