In secure embedded systems, you often need to authenticate messages or connected devices but many microcontrollers aren't set up for the necessary cryptography. That's where the Atmel ATSHA204 comes in.
The Atmel ATSHA204 is an optimized authentication chip that includes a 4.5Kb EEPROM. This array can be used for storage of keys, miscellaneous read/write, read-only, password or secret data, and consumption tracking. Access to the various sections of memory can be restricted in a variety of ways and then the configuration locked to prevent changes.
Each ATSHA204 ships with a guaranteed unique 72-bit'serial number. Using the cryptographic protocols supported by the chip, a host system or remote server can prove that the serial number is both authentic and not a copy. The ATSHA204 can generate high-quality random numbers and employ them for any purpose, including usage as part of the crypto protocols of this chip.
This breakout board allows you to use the small SOT-23 package in your prototypes!
Supply Voltage: 2.0-5.5V
Integrated capability for both host and client operations
Superior SHA-256 hash algorithm, HMAC option
Best-in-class, 256-bit key length; storage for up to 16 keys
Guaranteed unique 72-bit'serial number
Internal, high-quality Random Number Generator (RNG)
4.5-Kbit EEPROM for keys and data
512 OTP (One Time Programmable) bits for fixed information
A vibration motor! This itty-bitty, shaftless vibratory motor is perfect for non-audible indicators. Use in any number of applications to indicate to the wearer when a status has changed. All moving parts are protected within the housing. With a 2-3.6V operating range, these units shake crazily at 3V. Once anchored to a PCB or within a pocket, the unit...
The Potentiometer brick produces analog output between 0 and Vcc (5V DC witd Seeeduino) on its D1 connector. The D2 connector is not used. The angular range is 300 degrees witd a linear change in value. tde resistance value is 10k ohms, perfect for Arduino use. tdis may also be known as a rotary angle sensor.
This is 30 feet of conductive thread spun from stainless steel fiber and wound on a plastic bobbin. Use it to sew up all of your e-textile projects. This small bobbin is a great way to get into wearable electronics without the upfront cost of buying an entire spool of thread. 30 feet of thread is enough to get a simple design stitched onto your...
OV7670 image sensor, small volume, low operating voltage, providing all functions of a single chip of VGA camera and image processor. Through SCCB bus control, the sensor can output the whole frame, sampling, and various resolution 8 bits of data. The product VGA image can reach up to a maximum of 30 frames per second. Users can completely...
This is a cute half size breadboard which has 400 tie-points, is great for small projects. it\'s 2.2" x 3.4" (5.5cm x 8.2cm) with a standard double-strip (300pts) in the middle and two power rails (100pts) on both sides. You can pull the power rails off easily to make the breadboard as thin as 1.4" (3.5cm) and stick it onto your Raspberry Pi. You...
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This breakout board is the ultimate companion for the VLSI VS1053B DSP codec chip. The VS1053 can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). It can also be used to record audio in both PCM (WAV) and compressed Ogg Vorbis. You can do all sorts of stuff with the audio as well such as adjusting...