Content for 74HC14

Pulse Generator

“When you need pulses of any sort, long, short and with variable frequency you can use one or two 555 timers. That works, is easy to set up and is cheap. But it also limited to a certain range in …

Z80 Arduino Using Mega as Debugger

“Ever since the 80’s I’ve wanted to build a Z80 computer. I even bought the chips, but never used them. The reasons for this are varied. I never liked erasing and reprogramming EPROMs. My EPROM eraser died. I …

A digital quartz clock from scratch

“After 20+ years of programming, I wanted to get some understanding of the electronics that make my career possible. I had built the basic individual logic gates with transistors on a breadboard, but to build anything meaningful I needed loads …

Arduino CAP-ESR-FREQ Meter

“CAP-ESR-FREQ meter with an Arduino Duemilanove. In this instructable you can find all neccessary information about making a metering instrument based on an Arduino Duemilanove. With this instrument you can measure capacitor values in nanofarads and microfarads, the …

Make Your Own Sensored ESC

“In this project I will show you how a sensored BLDC Motor from an electric bike works and how we can create our own sensored ESC in order to let it rotate. Let’s get started!”

Transistor Radio Series - The 7 MHz Scratch Synthesizer

“I like making simple component-level radios. This Fall, I rekindled my love for making transistor radios and hope to slowly blog some circuits and fun. I’m warning you now — these circuits hearken the 1970s and 80s, SSD, EMRFD, old …

Texas Instruments

Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors, which it sells to electronics designers and manufacturers globally. Headquartered in Dallas, Texas, United States, TI is one of the top ten semiconductor companies worldwide, based …

Make your own Motorized Camera Slider

“In this project I will show you how I repurposed two old camera tripods in order to create a motorized camera slider. The mechanical system consist mostly of aluminium and stainless steel which makes the slider sturdy and pretty decent …

Let’s Make! 5 More BreadBoard Projects For Beginners

“With the previous version of this instructable (10 Breadboard Projects For Beginners) hitting more than 300K views and getting a lot of positive feedback from people, I decided to have one more ‘How To’ with more awesome projects! So here …

Build Your Own Negative Voltage Generator

“Many hobbyists will have come across an op-amp circuit that uses a dual rail supply. In order to provide the dual rails power, two power supplies can be used but many do not have access to such equipment or the …

Optically Isolated LPT Breakout Board for CNC & Routers

“Optically isolated parallel port break out board designed for Hobby CNC, Routers and Motion controller, This Board is an easy solution to drive stepper Motor driver through PC parallel port, The Board is compatible with various CNC software specially made …

4.5Amps Bipolar Stepper Motor driver based on TB6600

“Bipolar stepper drive board described here has been designed around TB6600HG IC. The TB6600HG is PWM chopper type single chip bipolar sinusoidal micro-step stepping driver. Maximum Load 4.5A, Supply 10V to 42V DC.”

Capacitance Meter using Arduino

“When we come across circuit boards which are previously designed or we take out one from old TV or computer, in attempt to repair it. And sometimes we need to know the capacitance of particular capacitor in the board to …