0

Bringing a Classic HP 35 Calculator Back to Life @HP

EDN Network posts a great article on how Michael Dunn buys a classic HP-35 calculator and gets it going with a modern LiPo battery and some circuit ingenuity.

HP Calculators

Do you have a fondness for calculators which came out in years past? Post your favorites below.

My favorites were the LCD Casio calculators for simple things and a TI-55 LED calculator which got me through engineering school.


Related
The HP-35 – Consumer Electronics, an Origin Story.


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.

Join 7,500+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/


Maker Business — Despite multiple bankruptcies, RadioShack continues to find ways to keep the lights on

Wearables — Tape, meet 3D printing

Electronics — A few words on inductor resistance

Biohacking — Running Blades

Python for Microcontrollers — CircuitPython is officially awesome!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



1 Comment

  1. This EC-4016 is so thin and had the hex conversion I needed as a computer science student. I’ve never found them for sale or anything comparable since.

Sorry, the comment form is closed at this time.