EE Bookshelf: Successful PCB Grounding with Mixed-Signal Chips
Thanks to Ian over at Dangerous Prototypes for the heads up on this app note from Maxim: Successful PCB Grounding with Mixed-Signal Chips. Have a good GND plane and return path is critical for high speed or mixed signal layout, but it’s often overlooked, and there is precious little information out there that’s accessible to non-specialists. It’s always nice to see app notes from manufacturers trying to make this somewhat opaque area of interest a bit clearer!
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.
(There is a lot of knowledge that the old timers have from users of obsolete technology.)
I have all of Dr. Howard Johnson’s books and I’d love to make it to his (final!) course at Cambridge this summer. The books aren’t cheap, but it’s the cheapest expert information on the subject out there.