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HP 5082-74xx 7-segment display revived

https://www.electronics-lab.com/hp-5082-74xx-7-segment-display-revived/

A small interface board for the legendary HP 5082-7415 and 7405 DIP bubble display. by Yannick (Gigawipf): This project describes a breadboard friendly breakout board with 2 shift registers and resistors for these modules with dip socket to be gentle on these rare displays from the 70s. One shift register controls the anodes and one […]

Bubble display shield for Adafruit Trinket

https://www.electronics-lab.com/bubble-display-shield-for-adafruit-trinket/

davedarko created this Adafruit Trinket Pro shield for the HP QDSP-6064 bubble display. The design files and source code are hosted on GitHub. An additional temperature sensor in the form of the LM75 can be added to this bubble display shield. The atmega32p is capable of driving up to 40mA per pin, so with the […]