Top 4 C++ Processing Projects

logic-analyzer

2 329 10.0 C++

Logic Analyzer, for Arduino, AVR, ESP8266 and STM32 with a very nice working processing interface, you could run it also on any Android device.
SparkFun_MLX90640_Arduino_Example

17 114 0.0 C++

Controlling and reading from the MLX90640 IR array thermal imaging sensor

Project mention: Ask HN: Did students lose interest in electronics as a hobby in the early 80s? | news.ycombinator.com | 2023-05-28

We made abstractions successfully, world changing abstractions.
Do the NAND to Tetris course and see that tech is abstractions on top of abstractions. Electronics today is frequently represented by code. Check out Verilog or VHDL.
https://en.wikipedia.org/wiki/Hardware_description_language
Where electronics stayed interesting is in the realm where code meets reality -> robotics and art.
Playing with LED's, robotics competitions, quad copters, cosplay. Maybe adjacent to SDR. Raspberry Pi's and Arduinos.
Check out ADAFruit: https://www.adafruit.com/
or Sparkfun: https://www.sparkfun.com/
Check out sites like: https://hackaday.com/
There is also the greater cultures: Maker culture and hacker culture. Maker Faire is super interesting and has many many attendees.
I would say that in America, it is harder to work with electronics because the number of maker spaces and places you could buy parts (RadioShack/Fry's) greatly diminished, but afluent folks can definitely have an electronics hobby supplied by online vendors.

WorkOS

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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
CProcessing

11 23 5.8 C++

Processing C++ Edition (by maksmakuta)
fql

6 21 3.1 C++

Formatted text processing with SQL

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).