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Schematic of tachometer electronics. Very straightforward except for R3: without this, the input to the arduino will always be basically +5V until you try to measure it, at which point it goes to 0v when the light beam is interrupted. The input impedance of the meter makes it work. Hard to diagnose.
You can read my blog entry on modding my dance mat for more info.
A view of the controller box on our home-made dance mat. I've peeled away some of the gaffer tape to reveal the wiring, and I'm about to cut the glue holding the box to the board in order to get to the electronics underneath.
4-H Clover College is a four-day series of hands-on workshops for youth presented by Nebraska Extension in Lancaster County. Emphasis is on science, agricultural literacy, healthy living, career development and citizenship/leadership. Many of the projects made during the sessions are eligible to be exhibited at the Lancaster County Super Fair in July.
2022 Clover College featured 54 workshops with a total 926 session registrations. New workshops this year included: “Slime, Jelly Worms & Twizzlers,” “TEC Box - Tinker, Explore, Create,” “Pollinator Party,” “Folk Art Watercolor Art,” “Focus on Photography,” “Hydro-Dip Painting” and “A-maize-ing Corn.”
In Lancaster County, the 4-H youth development program is a partnership between Nebraska Extension and the Lancaster County government. Learn more about Lancaster County 4-H at lancaster.unl.edu/4h.
The electrotactile finger tube will allow for the blind to read using electrotactile stimulation on their fingertips in place of bulky brail.
Mixing electronics theory and knowledge of correct usage of electronic components, with their creative application
This is a simple panorama of the heatsinks available at Fry's. Note that there's more above the shot, too!
Atmrestyle offers u the best services for installing auto electronics at best price it helps u in balance your budget. So hurry up and avail the services.
The electronics boxes (containing bluetooth chip and battery and tied to the shoelaces).
This design was developed as part of our NSF SBIR Phase 1 #1215290 grant.
2-Bit Adder Plus Carry Bit. Constructed from quad XOR (Exclusive Or), AND, and OR gates plus 5 switch dip switch packet and 10 LED block (Only 3 used). Simple circuit that can add two two digit binary words. This was for a school project. More information can be found at mattalltech.com/EE2372-Project1.
Cheers!
Kleines Test- und Entwicklungsboard für ATTiny-MCUs. Bauanleitung auf www.ni-c.de/2008/03/09/attiny-testboard/