Content for 74HC595

74HC595

The 74HC595 is an high speed CMOS device. An eight bit shift register accpets data from the serial input (DS) on each positive transition of the shift register clock (SHCP). When asserted low the reset function ( ) sets all shift register values to zero and is indepent of all clocks. Data from the input serial shift register is placed in the output register with a rising pulse on the storages resister clock (STCP). With the output enable ( E asserted low the 3-state outputs Q0-Q7 become active and present th All registers capture data on rising edge and change output on the falling edge. If both clocks are connected together the input shift register is always one clock cycle ahead of the output register.

ATtiny85-Motor

“These are all the files that I used to make a ATtiny85 circuit that controls a motor’s speed using a potentiometer, and also has indicator LEDs to qualitatively show the speed as you turn the potentiometer. One thing to …

Electromechanical 7-Segment Display

“The goal here was two-fold; create something stylish that would look good when hung up on a wall, and ensure that all movements were as quiet as possible! I was inspired by some great existing projects that I have bookmarked …

DIY Arduino IN-1 (ИН-1) Nixie Tube Clock

“This is another one of the many unusual clocks you can see in some of my previous projects. IN-1 nixie tubes are relatively cheap. Nixie tube is an electronic device used for displaying numerals or other information using glow …

Nixie Clock in a Dome

“This is a Nixie clock 3D wired in a glass dome. It is made with IN-12A (ИН-12A) Nixie tubes and an Arduino nano. This is inspired from a kit I bought a few years ago. I made some modifications …

Pomodoro device

“A simple device to make your Pomodoro style of work more fun A few years back while trying to figure out how to work efficiently, I came across a method of utilising the time and not feeling burned up at …

Thermochromic Clock - Frame Version

“I am repeating myself lately but here is yet another thermochromic project because I really like the effect of these liquid crystal sheets. This time I wanted to make a large clock that you can hang on your wall. The …

Kerbal Controller - the Basics

“The goal of this tutorial is not to show how to build a specific KSP controller, but to show many of the common design choices and their pros and cons. The idea is to guide you to make your own …

Valden: Heat Pump Controller

“The Valden Heat Pump controller is an open source platform to precisely control heat pumps. This controller can be used for the automation of newly built Heat Pumps (HPs), as a repair controller for old systems or as control system …

DIY SMU: Source Measure Unit

“As a lifelong analog EE, I have built and used many DC power supplies starting with an LM309 5V regulator in the late 60’s. Then on to uA723s, various 3 terminal linears, and many switchers. At Analogic in the …

SonicSurface: Phased-array for Levitation, Mid-air Tactile Feedback and Target Directional Speakers

“We will build an array of ultrasonic emitters. It has 256 emitters arranged in a 16x16 grid operating at 40 kHz with individual phase control. It can focus the acoustic power at controllable positions to create dynamic levitation of small …