A pen holder that determines when there are two or less pens and triggers an Amazon pen set replacement. Things used in this project Hardware components Arduino MKR1000 × 1 Crayola Air Dry Clay × 1 OpenBuilds Micro Limit Switch × 5 Software apps and online services Arduino IDE Amazon Web Services AWS SNS Hand …
Arduino Uno is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the …
A Reef / Saltwater Aquarium controller based on an Arduino Mrk1000 and controlled remotely by an Universal Windows Platform app. Things used in this project Hardware components Arduino MKR1000 × 1 Adafruit Perma-proto board full size × 1 Adafruit I2C logic level converter × 1 Adafruit RGB LCD Shield Kit I2C 16×2 × 1 SainSmart …
I wanted to probe a PCB at work to see how a ~500MHz differential clock was behaving. My trusty 100MHz oscilloscope was no use, it was too slow to see anything and unfortunately I couldn’t quite justify buying a $3k differential probe for my faster scope just for this. There are a bunch of DIY …
An almost-GHz active differential oscilloscope probe Read More »
I had to delve deep into the code, but I finally got nodebots working on an Arduino Zero Story I recently received an Arduino Zero, arduino.cc’s latest offering. I’d been experimenting with nodebots, so I decided my first Arduino Zero project would be a nodebot. Anna Gerber has an excellent tutorial for doing nodebots using …
Purpose and concept The “LayoutLights” concept was born when I wanted to remotely control (using a PC with a USB port) the lights on the train layout. I wanted to be able to switch on and off all the lights in buildings, structures and on platforms, streets and other locations.The basic principle is simple : …
