The EM4294 is an analogue front end for high secure 13. 56MHz RFID reader systems. The reader integrates the crypto algorithm of the EM4035 transponder IC associated with 4 secret keys. Each secret key is 96 bit length and it gives access to the EM4035 tag protected memory after a true mutual authentication process between the tag and the reader. T
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he secret key CAN not be read by an external device and their integrity is protected by a 32 bit password. The reader IC incorporates also 40k Bytes of user free memory accessible through an ISO7816-3 serial line. The EM4294 RF blocks are similar to the EM4094 one and have the same parameters and performances. The EM4294 reader chip CAN be used in different systems having sub Carrier frequencies from 212kHz to 848kHz, hence covering ISO14443 and ISO15693 and Sony FelicaTM protocols. By EM Microelectronic
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....
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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....
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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....
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