An oscilloscope is a device that can measure frequencies in either GHz or MHz, depending on your needs. It is a device used by amateur or ham radio operators to measure electric signals from their radios. Many ham radio operators…
What is Hexadecimal? Hexadecimal numbers are used in Microcontrollers, Microprocessors, etc. The term Hexa Decimal indicates that Hexa – (six) plus Decimal (ten), i.e. Sixteen. The base 16 number system is called Hexadecimal. At the very launch of computer expansion, it was realized that people…
In binary phase-shift keying (BPSK), the phase of a carrier is changed according to the digital pulses signal. BPSK modulator is a phase modulator. Here the transmitted signal is a sinusoid of fixed amplitude. It has one fixed phase when…
PWM pulse can be detected using a Ramp generator and some circuit combinations. But how to detect or demodulate a Pulse Width Modulated Signal? The block diagram itself explains all the decoding principles. Waveforms at different sections of Pulse width demodulation are also given here. We…
Hi there, today I’m gonna give you some PIC interfacing circuits. We have already seen how to connect the LCD display to PIC MCU which has a great role in the electronic display board industry. By the way, how do we interface 7…
Microcontrollers are standalone chips since they have memory and processor embedded. The integrated memory of microcontrollers stores embedded code and other temporary variables for the execution of the program. CircuitsGallery published many microcontroller tutorials and PIC microcontroller projects. Sometimes we may use…
At colleges, it’s a busy time now as I can see a lot of my friends running around to get their engineering major projects approved (Luckily mine got approved ?). Here at circuitsgallery.com we already have a fine collection of mini-projects on electronics and communication….
This is a very useful and simple circuit diagram for amplifying the weak signals from a capacitive condenser microphone. You can use this circuit for sound sensing applications and some automatic robotic sensors. We have already posted an efficient audio amplifier circuit using 1895 IC. It is…
A Dual Tone Multi-Frequency or DTMF decoder circuit identifies the dial tone from the telephone line and decodes the key pressed on the remote telephone. Here, for the detection of DTMF signaling, we are using the IC MT8870DE. MT8870 is a touch-tone decoder IC. It decodes the input DTMF into…