MM5314 a monolithic MOS integrated circuit that utilizes P-channel low threshold, enhancement mode and ion planted, depletion mode devices which has features such as internal multiplex oscillator, fast and slow set controls, single power supply, 7-segment outputs, leading zero blanking, operating at 50 Hz or 60 Hz, and 12 or 24 hour display fo
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rmat 7 Segment LED is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot-matrix displays also known as seven-segment indicator A digital clock is a type of clock in which the time is displayed in a numerical form being associated with electronic devices. It uses a digital display rather than moving hands. The basis of the circuit design evolves in a single MOS IC MM5314N. Other necessary circuits are operated through the MM5314 IC which works together with six common anode 7-segment displays. The multisegment LED common anode configuration reduces the number of wires between the LED modules where all positive ends are connected together. In practical design, the longest pin of the LED is the positive or the anode part. The 7-segment displays are driven by thirteen transistors consisting of BC550 and BC560. The timing of the circuit is determined by the frequency of the network with a value of 50 Hz, which imposes the simplest solution. To maintain a stable output frequency, a crystal oscillator may be used. It uses a quartz crystal to produce fixed frequency oscillations where accuracy and stability are the primary considerations. It uses the mechanical resonance of a vibrating crystal to produce a very precise frequency from the creation of an electrical signal. The six displays of 7-segment common anode provide the output for the time. LEDs DS1 and DS2...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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