Simple or Sophisticated? Teardown of a Cell Phone SIM Card is Revealing!
Great teardown video below by electronupdate of a good ol’ SIM card – you and I likely have one if not more of these in our pockets right this very second! Electronupdate does a great review doing a side-by-side of block diagrams matched up to the layout of the SIM, and also some interesting tidbits on attacks – and therefore protections in the hardware design – against intrusion common to cellphones. Watch the video below for more!
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.