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 RPI-1031 tilt sensor is capable of sensing a change in orientation in four different directions: forward, back, left or right. This breakout board makes it easier to incorporate the RPI-1031 in your next project by breaking the necessary pins out to standard 0.1" spaced headers. This board will work at either 3.3 or 5V.
Round and round and round they go! 12 ultra bright smart LED NeoPixels are arranged in a circle with 1.5" (37mm) outer diameter. The rings are \'chainable\' - connect the output pin of one to the input pin of another. Use only one microcontroller pin to control as many as you can chain together! Each LED is addressable as the driver chip is inside...
Genuino Micro is a microcontroller board based on the ATmega32u4, developed in conjunction with Adafruit. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, an ICSP header and a reset button. It contains everything needed to support the microcontroller;...
Love FLORA but want a bite-sized version? Look no further, GEMMA is a tiny wearable platform board with a lot of might in a 1" diameter package. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you\'ll be able to realize any wearable project!
If yo rsquo;ve had ideas for a project that depends on the ability to sense different spectrums of visible light and react based on those measurements, the ISL29125 breakout board may be just what you need. The ISL29125 breakout board makes it very easy to sense and record the light intensity of the general red, green, and blue spectrums of...
This is a simple, but extremely handy board to adapt the common 10-pin ISP programmers to the smaller 6-pin ISP connections. We also designed in a 6-pin inline connector so that you can insert this board directly into a breadboard! Good for the AVR programming tutorials. Pin 1 indicators indicate how the AVR-PG1 and PG2 should be oriented.
A Feather board without ambition is a Feather board without FeatherWings! This is the Latching Mini Relay FeatherWing . It gives you power to control, and control over power. Put simply, you can now turn on and off lamps, fans, solenoids, and other small appliances that run on up to 250VAC or DC power using any Feather board.
This LilyPad Coin Cell Battery Holder has a small slide switch installed on the board, in-line with the power so you can shut off your project and save batteries. This slide switch is the same as is found on the LilyPad slide switch board, so it\'s not easy to accidentally turn off or on.