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What is the OMG cryptocurrency?

Before talking about OMG or the OMG coin price, let’s first talk about the blockchain trilemma, one of the central problems of our industry. The blockchain trilemma is a name coined by Vitalik Buterin that proposes a set of three main issues that developers encounter when building blockchains. More often than not, developers are forced to choose two out of three: Decentralization. Rather than being managed by a single entity, blockchains distribute control over the network equally to all participants. Security. Blockchain networks should have ironclad defenses that prevent malicious entities from taking over. Scalability. Blockchains should support an enormous number of transactions and users without faltering by increasing fees and transaction times. In a single sentence, the OMG network is a non-custodial scaling solution for Layer-2 which is developed over the Ethereum blockchain. What this means is that OMG is designed to help users transfer tokens faster and at signi...
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What is difference between IR sensor and ultrasonic sensor?

IR sensor

It consist of a IR led as a transmitter via which a infrared light is emitted (which comes before the visible spectrum) and as a receiver either a photodiode or a TSOP is used to detect the light.

IR sensor has various application's such as

1.Line follower bot where it is used to differentiate between the black line and white line as the intensity of reflected light from the surface changes according to the color of line.

2. TV remote or set top box remote,

Here IR led is used with TSOP where IR led is present inside the remote and TSOP is present in TV and Set top box . Here data corresponding to each button on the remote is transmitted using RC-5 or RC-6 protocol at 38 kz frequency and on receiver side TSOP is used to receive the data which is interfaced with the preprogramed microcontroller.

ULTRASONIC SENSOR

Ultrasonic sensor is generally used to measure the distance of a object using sound waves it consist of a transmitter and receiver pair a transmitter transmit the sound wave at particular frequency and the reflected wave from the object is received by the receiver. By recording the elapsed time between the sound wave being generated and the sound wave bouncing back, it is possible to calculate the distance between the ultrasonic sensor and the object. In order to calculate the distance we use following formula.

Distance ={ (speed of sound in medium) * (time taken)}/2.

HC-SR04 is the Most popular ultrasonic sensor among hobbyists.

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