Measuring approx 1″ x 6″, this standard-thickness FR4, gold plated ruler has the most common component packages you’ll encounter. It also has font size guide, trace-width diagram, and a set of AWG-sized drills so you can gauge your wire thicknesses.
That’s not all, it’s even a fully featured microcontroller board! Embedded in the end is a Trinket M0, our little Cortex M0+ development board, and in addition, there’s 4 capacitive touch pads with matching LEDs that our code will turn into a specialized engineer keyboard. We’re always needing to type Ω and µ but we can never memorize the complex key-commands necessary. Thanks to CircuitPython, it’s super-easy to make a touch keyboard to solve this for you. Plug in the ruler into your computer, if it’s your first time using it, you’ll need to open up the code.py file and set the Keyboard mode to “True”. Now when you touch the pads, you’ll get a Ω, µ, π or, when the Digi-Key logo is touched, the URL for Digi-Key’s Python on Hardware guide.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.