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Labrador
EspoTek Labrador is a USB device that transforms your PC or smartphone into a fully-featured electronics lab. This repo holds all of the source code!
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
There is a lot of open hardware.
See e.g.
https://ohwr.org/, https://opencores.org/
or https://github.com/westerndigitalcorporation/swerv_eh1_fpga https://github.com/westerndigitalcorporation/swerv_eh1
I open-sourced my commercial USB oscilloscope design (https://github.com/EspoTek/Labrador) after doing a bit of research into boards targeted at electronics hobbyists and crowdfunded by individuals or small teams.
Invariably, a community didn't form around the closed-source boards and they died.
A lot of people asked me what I'm doing to protect my IP from being "stolen".