7-Segment Display

A seven-segment display is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. Seven-segment displays are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information.

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Command & Control of Multiple Serial-In/Parallel-Out ICs

“Design projects using many 100’s of output pins, using banks of serial-parallel ICs, up to 255 ICs/2040 output pins, on minimal digital pins The ez_SIPO8 Library Introduction - More from Less Arduino microcontrollers are great for offering readily usable …

Function Generator (AD9833 Based)

“Hi, I am Gursimran Singh In this Instructable, I will guide you through on how to make a “functional” function generator, which can be very helpful when working with electronic circuits. A function generator can generate different kinds of signals …

A Shuttle Mission Control Mock-Up for Kids

“A Mission Control Center for children was constructed to manage a pretend launch of the space shuttle. I wanted to play-out the make believe mission with nothing but LED lamps to tell the story; both 7-segment displays and graphic displays …

General Purpose Countdown Timer

“A general purpose countdown timer. Easily settable for up to one hour. Great for the kitchen. Perfect 5 minute eggs! In todays world of Apps for your smart phone, a countdown timer might seem like a bit of a redundant …

Twist-to-Set Kitchen Timer

“A hand-held twist-to-set countdown timer for your kitchen. Recently I built an Attiny85 Twist-to-Set Kitchen Timer by bobson.h. After finishing the build, I found that the optical rotary encoder had a number of problems which I won’t go …

Electronic Depth Gauge for Dremel Drill Press

“A clip-on electronic depth gauge for a Dremel Drill Press. No wires or screws required. Sometimes during a build, you may need to drill holes of a fixed depth. I have a Dremel Drill Press and while it is a …

It’s About Time!

“In this age of WiFi and the Internet of Things, clocks should set themselves and be super accurate. Perhaps you’ve built an Arduino alarm clock in the past - you’ll be pleasantly surprised to see how easy it is …

UV Exposure Box

“A UV Exposure Box to expose photoresist or solder masks for single and double boards. Most of the projects that I build have a custom printed circuit board. With a preference to making my own PCBs rather than use proto-boards …

Making a Alarm Clock That Asks Questions Randomly

“Do you usually have trouble getting up? Set more than a dozen alarm clocks in the morning, but still can’t wake up and turn them off in a daze. When you waking up and find out that you are …

STOP Face Touching Device

“Why do you want to stop touching since it is part of our human nature? Well, it is all because of the virus floating around. Health officials keep telling the public to stop touching faces when they couldn’t help …