@wolfram_alpha adds features for electrical engineers!
Not too long ago in Boston, Ladyada, Amanda (w0z) and Phil met Stephen Wolfram, they talked about adding features for electrical engineers, as they chatted Stephen typed in notes directly to the “feature request” on his iPad – today we received this email!
Dear Limor Fried,
…you gave us some suggestions for features in Wolfram|Alpha. I thought you might like to see that we finally implemented something in regard to resistance.
Adafruit has had paid day off for voting for our team for years, if you need help getting that going for your organization, let us know – we can share how and why we did this as well as the good results. Here are some resources for voting by mail, voting in person, and some NY resources for our NY based teams as well. If there are additional resources to add, please let us know – adafruit.com/vote
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.
Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !
I’m not sure about the usefulness of the function that displays networks of common resistor values closest to the value entered, though.
That’s because you can’t expect to consistently get within, say, 0.14% of the value entered (as for the 14 kiloohm link above) using 10% tolerance resistors.
The resistor network function could be improved by allowing selection of the tolerance of the resistors available (and not just the range of values to select from, E6 or E12) and using that information to calculate the tolerance for the whole network.
When moving from prototype to production, chaining multiple component errors or tolerances in this way is more likely to affect circuit yield than designing with a single component of a precisely known value that is slightly off from the target value.5