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“The 555 which comes in a number of technology variants (Bipolar & CMOS), single, dual elements and different package styles (SMD & DIL), and finds many uses in a variety of applications from timers, pulse generation and oscillators. All of these applications …
“While browsing Instructables I came across teebee918’s project where he made 2 different types of “motion” sensors. I continued on the principle of one of the sensors. This sensor consists of a spring on which an iron ball is …
“The MK1 CPU is composed of several modules, all connected trough a common 8-bit BUS, the status of each module is shown by dedicated LEDs. The clock module is designed to allow step-by-step execution; in automatic mode the clock speed …
“In this Instructable I show you how to make a simple push to push off circuit with a 555 timer. Because I have come across several projects that use this 555 timer and I had no idea what a 555 …
“It’s an analog, 20 note polyphonic, square wave synthesizer based on the 555 timer chip. The enclosure and keys are 3D-printed, its models were programmed in OpenSCAD, and its PCB was designed in Kicad. A little history The monophonic …
“Speed up the etching of printed circuit boards with an easy to build agitator. I make a lot of my own printed circuit boards and etching was always a bit of a chore since you really need to keep the …
“This is something I built from a published schematic late in the 1980s. It works very well. I gave away the magazine with the schematic because I believed I would never need it again and we were downsizing. The circuit …
“This circuit is made by applying very common CD4017 LED circuit so called as LED chaser. But it can support diverse LED blinking methods by plugging control cables as different manners. Maybe it can be utilized as bicycle backlight or …
“I designed the circuit board for the NE555 timer and it works! Try it too! Hello! My name is Vladimir, I am a programmer and electronics developer. Analog circuitry has always been my weak point, and therefore the idea came …
“Previously I had introduced simple raspberry pi (Hereinafter as RPI) operational status indicator circuit. This time, Ill explain some more useful indicator circuit for RPI running as headless (without monitor) manner. The circuit above shows CPU temperature into 4 different …