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LED stair sensors and other progress
ByEricaI’ve received a few comments and e-mails about the LED stairs lately, and I want to thank everyone who took the time to contact me. Although I haven’t posted in a while, I have been moving forward with the project. When it is complete I plan to publish a full list of materials and schematics…
A princess canopy for Laurel
ByEricaOn Thursday, Laurel had a day off of school. It is rare for her to get a holiday while her sister has to go to school, so I offered to spend the day with her. I gave her a lot of options, and her favorite was to simply stay home and do crafts with me….
A crash course in sewing
ByEricaI’ve been meaning to learn to sew for a long time. I knew the basics, of course, sewing on a button, fixing a tear, and making a (crude) hem. It was clear that learning to use a sewing machine would make things much easier and provide a useful option for projects. I love engineering, and…
LED stairs: the chips are talking
ByEricaIn my last post on the LED stairs, I discussed using the Arduino and an M5451 driver chip to control the lighting sequence. Today, I completed my first breadboard version: The Arduino Mini Pro is on the left and the M5451 is on the right, positions I will reverse in the final design. I used…
Robotics Open House at the University of Maryland
ByEricaLast Friday the University of Maryland had an open house for their robotics department. This was a free event, including lunch, and very well organized. I had not been able to go to any previous robot competitions at the university so I was eager to see what they had. The university has 18 robotics labs,…
Ready to put out some fires
ByEricaFinally the time has come — the Abington Firefighting Competition is two days away. FireCheetah is tested and ready to go! The kids have their own robot this year, a LEGO Mindstorms creation named Dark Lord, and he is looking good too. All about sensors With navigation mostly solved early on, there was more time…