Teardown: LED Push Light

VideoSeptember 4, 2017August 30, 2017 Nick MomrikLeave a comment

I bought a 2 pack of these LED push lights because I wanted one for a broom closet. I was curious how cheap and simple the construction was, so I took the other one apart to see how it worked.

Test LEDs with a Coin Cell Battery

April 25, 2017April 25, 2017 Nick MomrikLeave a comment

The battery (CR2450) in my garage door sensor was getting low, so I replaced it. I’ll keep the old one in my electronics kit for LED testing, as shown in this video. Touch the longer leg (anode) of the LED to + and the shorter leg (cathode) to –. Usually + is the top of the battery where the words are. Don’t worry, you won’t hurt the LED if you connect it the wrong way.

Combining 74HC74 & 555 Integrated Circuits

VideoApril 15, 2017April 15, 2017 Nick Momrik2 Comments

After working with some basic 74HC74 and 555 circuits, it was time to get fancy. I replaced one of the button triggers from my 74HC74 circuit with a 555 timer delay. Then I replaced the other button with a 555 timer delay as well. What do you think happens if I swap out the 22 μF capacitors for 4.7 μF? Remember […]

Using a 555 Integrated Circuit

VideoApril 10, 2017April 20, 2017 Nick Momrik2 Comments

I posted about the 74HC74 flip-flop on Saturday. For the same project I’m going to use that IC for, I’ll probably use a 555 timer. It’s often referred to as one of the most useful ICs you can get. I’ve never used the 555 either, so I wired up some simple demos using it. In order to show two […]

Using a 74HC74 Integrated Circuit

VideoApril 8, 2017April 20, 2017 Nick Momrik4 Comments

I received some advice to use a 74HC74 flip-flop for a project idea I’ve had. I’ve never used an integrated circuit so I thought a good first step was to put together a very simple demo I could hack around with it. This IC is big enough it actually provides two flip-flops, one on each side as […]

Lit

ImageDecember 3, 2016December 3, 2016 Nick Momrik1 Comment

Who would have thought it would be so exciting to light up some LEDs? I had a late night playing with a breadboard for the first time. It was also my first time soldering anything. I had to attach some headers to a Raspberry Pi Zero.

Nick Momrik

Asparagus is gross

Tag: LED