Toddy Cangica Introduction I always thought the clapper so cool. For those who are lazy like me, turn on or off the bedroom light without getting out of bed, simple clap your hands is amazing. Thinking about it I projected one for me. Several ...
Do you need to add a distance sensor to your embedded project ? Build this simple ultrasonic range finder ! This quick dirty PIC ultrasonic range finder will find a place in numerous projects : presence detector, robotics, car parking, distance ...
You can't calculate binary values as is on most handheld calculators and using the windows one is just a pain, so i decided to make my very own (binary only) calculator. This calculator supports all the basic functions like : NOT,OR,AND,XOR, ...
Stefano Palazzolo Get 1.25V to 3.75V from an adjustable regulator Every PC has a USB (Universal Serial Bus) port that can supply 5V 5% at 500 mA for peripherals. Powered USB hubs also provide this power. You can use a USB port to power an external ...
Vassilis Papanikolaou This is a new design of a tutorial board based on the popular PIC16F84A microcontroller. It features eight single leds, a 7-segment display, an LCD display and five push buttons. It is an ideal solution for the beginner to ...
Matt Meerian The main idea behind this project was to make Christmas gifts for friends and family that would be somewhat useful. A clock was chosen simply because it is something that everyone uses and it would be relatively easy to complete. Also, ...
Izhar Fareed Description This circuit is so sensitive it will detect mains hum. Simply move it across any wall and it will detect where the mains cable is located. It has a gain of about 200 × 200 × 200 = 8,000,000 and will also detect ...
This tutorial shows you how to control 16 LEDs with just 3 control lines. We do this by daisy chaining 74HC595 shift registers The 74HC595 shift register has an 8 bit storage register and an 8 bit shift register. Data is written to the shift ...
This amplifier circuit is used to amplify TV signals in UHF range. It uses a low-noise transistor and gives 10 to 15 dB amplification in the frequency range from 400 MHz to 850 MHz. The transistor must be shielded from the input components and in ...
Use two ICs to produce both waveforms. Test applications may call for a rectangular waveform having a precision duty cycle higher or lower than 50%. The circuit in Figure 1 is a free-running generator using just two ICs that produces ...